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1da177e4 LT |
1 | /* |
2 | * Authors: | |
3 | * Copyright 2001, 2002 by Robert Olsson <robert.olsson@its.uu.se> | |
4 | * Uppsala University and | |
5 | * Swedish University of Agricultural Sciences | |
6 | * | |
7 | * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> | |
8 | * Ben Greear <greearb@candelatech.com> | |
96de0e25 | 9 | * Jens Låås <jens.laas@data.slu.se> |
1da177e4 LT |
10 | * |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | * | |
16 | * | |
17 | * A tool for loading the network with preconfigurated packets. | |
4ec93edb | 18 | * The tool is implemented as a linux module. Parameters are output |
1da177e4 LT |
19 | * device, delay (to hard_xmit), number of packets, and whether |
20 | * to use multiple SKBs or just the same one. | |
21 | * pktgen uses the installed interface's output routine. | |
22 | * | |
23 | * Additional hacking by: | |
24 | * | |
25 | * Jens.Laas@data.slu.se | |
26 | * Improved by ANK. 010120. | |
27 | * Improved by ANK even more. 010212. | |
28 | * MAC address typo fixed. 010417 --ro | |
29 | * Integrated. 020301 --DaveM | |
30 | * Added multiskb option 020301 --DaveM | |
31 | * Scaling of results. 020417--sigurdur@linpro.no | |
32 | * Significant re-work of the module: | |
33 | * * Convert to threaded model to more efficiently be able to transmit | |
34 | * and receive on multiple interfaces at once. | |
35 | * * Converted many counters to __u64 to allow longer runs. | |
36 | * * Allow configuration of ranges, like min/max IP address, MACs, | |
37 | * and UDP-ports, for both source and destination, and can | |
38 | * set to use a random distribution or sequentially walk the range. | |
39 | * * Can now change most values after starting. | |
40 | * * Place 12-byte packet in UDP payload with magic number, | |
41 | * sequence number, and timestamp. | |
42 | * * Add receiver code that detects dropped pkts, re-ordered pkts, and | |
43 | * latencies (with micro-second) precision. | |
44 | * * Add IOCTL interface to easily get counters & configuration. | |
45 | * --Ben Greear <greearb@candelatech.com> | |
46 | * | |
4ec93edb YH |
47 | * Renamed multiskb to clone_skb and cleaned up sending core for two distinct |
48 | * skb modes. A clone_skb=0 mode for Ben "ranges" work and a clone_skb != 0 | |
1da177e4 | 49 | * as a "fastpath" with a configurable number of clones after alloc's. |
4ec93edb YH |
50 | * clone_skb=0 means all packets are allocated this also means ranges time |
51 | * stamps etc can be used. clone_skb=100 means 1 malloc is followed by 100 | |
1da177e4 LT |
52 | * clones. |
53 | * | |
4ec93edb | 54 | * Also moved to /proc/net/pktgen/ |
1da177e4 LT |
55 | * --ro |
56 | * | |
57 | * Sept 10: Fixed threading/locking. Lots of bone-headed and more clever | |
58 | * mistakes. Also merged in DaveM's patch in the -pre6 patch. | |
59 | * --Ben Greear <greearb@candelatech.com> | |
60 | * | |
61 | * Integrated to 2.5.x 021029 --Lucio Maciel (luciomaciel@zipmail.com.br) | |
62 | * | |
4ec93edb | 63 | * |
1da177e4 LT |
64 | * 021124 Finished major redesign and rewrite for new functionality. |
65 | * See Documentation/networking/pktgen.txt for how to use this. | |
66 | * | |
67 | * The new operation: | |
4ec93edb YH |
68 | * For each CPU one thread/process is created at start. This process checks |
69 | * for running devices in the if_list and sends packets until count is 0 it | |
70 | * also the thread checks the thread->control which is used for inter-process | |
71 | * communication. controlling process "posts" operations to the threads this | |
1da177e4 LT |
72 | * way. The if_lock should be possible to remove when add/rem_device is merged |
73 | * into this too. | |
74 | * | |
4ec93edb YH |
75 | * By design there should only be *one* "controlling" process. In practice |
76 | * multiple write accesses gives unpredictable result. Understood by "write" | |
1da177e4 | 77 | * to /proc gives result code thats should be read be the "writer". |
b4099fab | 78 | * For practical use this should be no problem. |
1da177e4 | 79 | * |
4ec93edb YH |
80 | * Note when adding devices to a specific CPU there good idea to also assign |
81 | * /proc/irq/XX/smp_affinity so TX-interrupts gets bound to the same CPU. | |
1da177e4 LT |
82 | * --ro |
83 | * | |
4ec93edb | 84 | * Fix refcount off by one if first packet fails, potential null deref, |
1da177e4 LT |
85 | * memleak 030710- KJP |
86 | * | |
87 | * First "ranges" functionality for ipv6 030726 --ro | |
88 | * | |
89 | * Included flow support. 030802 ANK. | |
90 | * | |
91 | * Fixed unaligned access on IA-64 Grant Grundler <grundler@parisc-linux.org> | |
4ec93edb | 92 | * |
1da177e4 LT |
93 | * Remove if fix from added Harald Welte <laforge@netfilter.org> 040419 |
94 | * ia64 compilation fix from Aron Griffis <aron@hp.com> 040604 | |
95 | * | |
4ec93edb | 96 | * New xmit() return, do_div and misc clean up by Stephen Hemminger |
1da177e4 LT |
97 | * <shemminger@osdl.org> 040923 |
98 | * | |
4ec93edb | 99 | * Randy Dunlap fixed u64 printk compiler waring |
1da177e4 LT |
100 | * |
101 | * Remove FCS from BW calculation. Lennert Buytenhek <buytenh@wantstofly.org> | |
102 | * New time handling. Lennert Buytenhek <buytenh@wantstofly.org> 041213 | |
103 | * | |
4ec93edb | 104 | * Corrections from Nikolai Malykh (nmalykh@bilim.com) |
1da177e4 LT |
105 | * Removed unused flags F_SET_SRCMAC & F_SET_SRCIP 041230 |
106 | * | |
4ec93edb | 107 | * interruptible_sleep_on_timeout() replaced Nishanth Aravamudan <nacc@us.ibm.com> |
1da177e4 | 108 | * 050103 |
ca6549af SW |
109 | * |
110 | * MPLS support by Steven Whitehouse <steve@chygwyn.com> | |
111 | * | |
34954ddc FF |
112 | * 802.1Q/Q-in-Q support by Francesco Fondelli (FF) <francesco.fondelli@gmail.com> |
113 | * | |
ce5d0b47 AR |
114 | * Fixed src_mac command to set source mac of packet to value specified in |
115 | * command by Adit Ranadive <adit.262@gmail.com> | |
116 | * | |
1da177e4 LT |
117 | */ |
118 | #include <linux/sys.h> | |
119 | #include <linux/types.h> | |
120 | #include <linux/module.h> | |
121 | #include <linux/moduleparam.h> | |
122 | #include <linux/kernel.h> | |
222fa076 | 123 | #include <linux/mutex.h> |
1da177e4 LT |
124 | #include <linux/sched.h> |
125 | #include <linux/slab.h> | |
126 | #include <linux/vmalloc.h> | |
1da177e4 LT |
127 | #include <linux/unistd.h> |
128 | #include <linux/string.h> | |
129 | #include <linux/ptrace.h> | |
130 | #include <linux/errno.h> | |
131 | #include <linux/ioport.h> | |
132 | #include <linux/interrupt.h> | |
4fc268d2 | 133 | #include <linux/capability.h> |
2bc481cf | 134 | #include <linux/hrtimer.h> |
09fe3ef4 | 135 | #include <linux/freezer.h> |
1da177e4 LT |
136 | #include <linux/delay.h> |
137 | #include <linux/timer.h> | |
cdcdbe0b | 138 | #include <linux/list.h> |
1da177e4 LT |
139 | #include <linux/init.h> |
140 | #include <linux/skbuff.h> | |
141 | #include <linux/netdevice.h> | |
142 | #include <linux/inet.h> | |
143 | #include <linux/inetdevice.h> | |
144 | #include <linux/rtnetlink.h> | |
145 | #include <linux/if_arp.h> | |
34954ddc | 146 | #include <linux/if_vlan.h> |
1da177e4 LT |
147 | #include <linux/in.h> |
148 | #include <linux/ip.h> | |
149 | #include <linux/ipv6.h> | |
150 | #include <linux/udp.h> | |
151 | #include <linux/proc_fs.h> | |
d50a6b56 | 152 | #include <linux/seq_file.h> |
1da177e4 | 153 | #include <linux/wait.h> |
f404e9a6 | 154 | #include <linux/etherdevice.h> |
ee74baa7 | 155 | #include <linux/kthread.h> |
457c4cbc | 156 | #include <net/net_namespace.h> |
1da177e4 LT |
157 | #include <net/checksum.h> |
158 | #include <net/ipv6.h> | |
159 | #include <net/addrconf.h> | |
a553e4a6 JHS |
160 | #ifdef CONFIG_XFRM |
161 | #include <net/xfrm.h> | |
162 | #endif | |
1da177e4 LT |
163 | #include <asm/byteorder.h> |
164 | #include <linux/rcupdate.h> | |
1977f032 | 165 | #include <linux/bitops.h> |
63adc6fb SH |
166 | #include <linux/io.h> |
167 | #include <linux/timex.h> | |
168 | #include <linux/uaccess.h> | |
1da177e4 | 169 | #include <asm/dma.h> |
222f1806 | 170 | #include <asm/div64.h> /* do_div */ |
1da177e4 | 171 | |
43d28b65 | 172 | #define VERSION "2.74" |
1da177e4 | 173 | #define IP_NAME_SZ 32 |
ca6549af | 174 | #define MAX_MPLS_LABELS 16 /* This is the max label stack depth */ |
d5f1ce9a | 175 | #define MPLS_STACK_BOTTOM htonl(0x00000100) |
1da177e4 LT |
176 | |
177 | /* Device flag bits */ | |
222f1806 LC |
178 | #define F_IPSRC_RND (1<<0) /* IP-Src Random */ |
179 | #define F_IPDST_RND (1<<1) /* IP-Dst Random */ | |
180 | #define F_UDPSRC_RND (1<<2) /* UDP-Src Random */ | |
181 | #define F_UDPDST_RND (1<<3) /* UDP-Dst Random */ | |
182 | #define F_MACSRC_RND (1<<4) /* MAC-Src Random */ | |
183 | #define F_MACDST_RND (1<<5) /* MAC-Dst Random */ | |
184 | #define F_TXSIZE_RND (1<<6) /* Transmit size is random */ | |
185 | #define F_IPV6 (1<<7) /* Interface in IPV6 Mode */ | |
ca6549af | 186 | #define F_MPLS_RND (1<<8) /* Random MPLS labels */ |
34954ddc FF |
187 | #define F_VID_RND (1<<9) /* Random VLAN ID */ |
188 | #define F_SVID_RND (1<<10) /* Random SVLAN ID */ | |
007a531b | 189 | #define F_FLOW_SEQ (1<<11) /* Sequential flows */ |
a553e4a6 | 190 | #define F_IPSEC_ON (1<<12) /* ipsec on for flows */ |
45b270f8 | 191 | #define F_QUEUE_MAP_RND (1<<13) /* queue map Random */ |
e6fce5b9 | 192 | #define F_QUEUE_MAP_CPU (1<<14) /* queue map mirrors smp_processor_id() */ |
e99b99b4 | 193 | #define F_NODE (1<<15) /* Node memory alloc*/ |
1da177e4 LT |
194 | |
195 | /* Thread control flag bits */ | |
6b80d6a6 SH |
196 | #define T_STOP (1<<0) /* Stop run */ |
197 | #define T_RUN (1<<1) /* Start run */ | |
198 | #define T_REMDEVALL (1<<2) /* Remove all devs */ | |
199 | #define T_REMDEV (1<<3) /* Remove one dev */ | |
1da177e4 | 200 | |
1da177e4 LT |
201 | /* If lock -- can be removed after some work */ |
202 | #define if_lock(t) spin_lock(&(t->if_lock)); | |
203 | #define if_unlock(t) spin_unlock(&(t->if_lock)); | |
204 | ||
205 | /* Used to help with determining the pkts on receive */ | |
206 | #define PKTGEN_MAGIC 0xbe9be955 | |
d50a6b56 SH |
207 | #define PG_PROC_DIR "pktgen" |
208 | #define PGCTRL "pgctrl" | |
63adc6fb | 209 | static struct proc_dir_entry *pg_proc_dir; |
1da177e4 LT |
210 | |
211 | #define MAX_CFLOWS 65536 | |
212 | ||
34954ddc FF |
213 | #define VLAN_TAG_SIZE(x) ((x)->vlan_id == 0xffff ? 0 : 4) |
214 | #define SVLAN_TAG_SIZE(x) ((x)->svlan_id == 0xffff ? 0 : 4) | |
215 | ||
222f1806 | 216 | struct flow_state { |
252e3346 | 217 | __be32 cur_daddr; |
222f1806 | 218 | int count; |
a553e4a6 JHS |
219 | #ifdef CONFIG_XFRM |
220 | struct xfrm_state *x; | |
221 | #endif | |
007a531b | 222 | __u32 flags; |
1da177e4 LT |
223 | }; |
224 | ||
007a531b JHS |
225 | /* flow flag bits */ |
226 | #define F_INIT (1<<0) /* flow has been initialized */ | |
227 | ||
1da177e4 | 228 | struct pktgen_dev { |
1da177e4 LT |
229 | /* |
230 | * Try to keep frequent/infrequent used vars. separated. | |
231 | */ | |
39df232f SH |
232 | struct proc_dir_entry *entry; /* proc file */ |
233 | struct pktgen_thread *pg_thread;/* the owner */ | |
63adc6fb | 234 | struct list_head list; /* chaining in the thread's run-queue */ |
1da177e4 | 235 | |
63adc6fb | 236 | int running; /* if false, the test will stop */ |
1da177e4 | 237 | |
222f1806 LC |
238 | /* If min != max, then we will either do a linear iteration, or |
239 | * we will do a random selection from within the range. | |
240 | */ | |
241 | __u32 flags; | |
95ed63f7 AK |
242 | int removal_mark; /* non-zero => the device is marked for |
243 | * removal by worker thread */ | |
1da177e4 | 244 | |
222f1806 LC |
245 | int min_pkt_size; /* = ETH_ZLEN; */ |
246 | int max_pkt_size; /* = ETH_ZLEN; */ | |
16dab72f | 247 | int pkt_overhead; /* overhead for MPLS, VLANs, IPSEC etc */ |
222f1806 | 248 | int nfrags; |
fd29cf72 SH |
249 | u64 delay; /* nano-seconds */ |
250 | ||
222f1806 LC |
251 | __u64 count; /* Default No packets to send */ |
252 | __u64 sofar; /* How many pkts we've sent so far */ | |
253 | __u64 tx_bytes; /* How many bytes we've transmitted */ | |
f466dba1 | 254 | __u64 errors; /* Errors when trying to transmit, */ |
222f1806 LC |
255 | |
256 | /* runtime counters relating to clone_skb */ | |
222f1806 LC |
257 | |
258 | __u64 allocated_skbs; | |
259 | __u32 clone_count; | |
260 | int last_ok; /* Was last skb sent? | |
63adc6fb SH |
261 | * Or a failed transmit of some sort? |
262 | * This will keep sequence numbers in order | |
222f1806 | 263 | */ |
fd29cf72 SH |
264 | ktime_t next_tx; |
265 | ktime_t started_at; | |
266 | ktime_t stopped_at; | |
267 | u64 idle_acc; /* nano-seconds */ | |
268 | ||
222f1806 LC |
269 | __u32 seq_num; |
270 | ||
63adc6fb SH |
271 | int clone_skb; /* |
272 | * Use multiple SKBs during packet gen. | |
273 | * If this number is greater than 1, then | |
274 | * that many copies of the same packet will be | |
275 | * sent before a new packet is allocated. | |
276 | * If you want to send 1024 identical packets | |
277 | * before creating a new packet, | |
278 | * set clone_skb to 1024. | |
222f1806 LC |
279 | */ |
280 | ||
281 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
282 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
283 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
284 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
285 | ||
286 | struct in6_addr in6_saddr; | |
287 | struct in6_addr in6_daddr; | |
288 | struct in6_addr cur_in6_daddr; | |
289 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 290 | /* For ranges */ |
222f1806 LC |
291 | struct in6_addr min_in6_daddr; |
292 | struct in6_addr max_in6_daddr; | |
293 | struct in6_addr min_in6_saddr; | |
294 | struct in6_addr max_in6_saddr; | |
295 | ||
296 | /* If we're doing ranges, random or incremental, then this | |
297 | * defines the min/max for those ranges. | |
298 | */ | |
252e3346 AV |
299 | __be32 saddr_min; /* inclusive, source IP address */ |
300 | __be32 saddr_max; /* exclusive, source IP address */ | |
301 | __be32 daddr_min; /* inclusive, dest IP address */ | |
302 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
303 | |
304 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
305 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
306 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
307 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
308 | ||
1ca7768c | 309 | /* DSCP + ECN */ |
63adc6fb SH |
310 | __u8 tos; /* six MSB of (former) IPv4 TOS |
311 | are for dscp codepoint */ | |
312 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 | |
313 | (see RFC 3260, sec. 4) */ | |
1ca7768c | 314 | |
ca6549af SW |
315 | /* MPLS */ |
316 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
317 | __be32 labels[MAX_MPLS_LABELS]; | |
318 | ||
34954ddc FF |
319 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
320 | __u8 vlan_p; | |
321 | __u8 vlan_cfi; | |
322 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
323 | ||
324 | __u8 svlan_p; | |
325 | __u8 svlan_cfi; | |
326 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
327 | ||
222f1806 LC |
328 | __u32 src_mac_count; /* How many MACs to iterate through */ |
329 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
330 | ||
331 | unsigned char dst_mac[ETH_ALEN]; | |
332 | unsigned char src_mac[ETH_ALEN]; | |
333 | ||
334 | __u32 cur_dst_mac_offset; | |
335 | __u32 cur_src_mac_offset; | |
252e3346 AV |
336 | __be32 cur_saddr; |
337 | __be32 cur_daddr; | |
66ed1e5e | 338 | __u16 ip_id; |
222f1806 LC |
339 | __u16 cur_udp_dst; |
340 | __u16 cur_udp_src; | |
45b270f8 | 341 | __u16 cur_queue_map; |
222f1806 | 342 | __u32 cur_pkt_size; |
baac8564 | 343 | __u32 last_pkt_size; |
222f1806 LC |
344 | |
345 | __u8 hh[14]; | |
346 | /* = { | |
347 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
348 | ||
349 | We fill in SRC address later | |
350 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
351 | 0x08, 0x00 | |
352 | }; | |
353 | */ | |
354 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
355 | ||
63adc6fb | 356 | struct sk_buff *skb; /* skb we are to transmit next, used for when we |
222f1806 LC |
357 | * are transmitting the same one multiple times |
358 | */ | |
63adc6fb SH |
359 | struct net_device *odev; /* The out-going device. |
360 | * Note that the device should have it's | |
361 | * pg_info pointer pointing back to this | |
362 | * device. | |
363 | * Set when the user specifies the out-going | |
364 | * device name (not when the inject is | |
365 | * started as it used to do.) | |
366 | */ | |
593f63b0 | 367 | char odevname[32]; |
1da177e4 | 368 | struct flow_state *flows; |
222f1806 LC |
369 | unsigned cflows; /* Concurrent flows (config) */ |
370 | unsigned lflow; /* Flow length (config) */ | |
371 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 372 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
373 | |
374 | u16 queue_map_min; | |
375 | u16 queue_map_max; | |
e99b99b4 | 376 | int node; /* Memory node */ |
45b270f8 | 377 | |
a553e4a6 JHS |
378 | #ifdef CONFIG_XFRM |
379 | __u8 ipsmode; /* IPSEC mode (config) */ | |
380 | __u8 ipsproto; /* IPSEC type (config) */ | |
381 | #endif | |
39df232f | 382 | char result[512]; |
1da177e4 LT |
383 | }; |
384 | ||
385 | struct pktgen_hdr { | |
252e3346 AV |
386 | __be32 pgh_magic; |
387 | __be32 seq_num; | |
388 | __be32 tv_sec; | |
389 | __be32 tv_usec; | |
1da177e4 LT |
390 | }; |
391 | ||
392 | struct pktgen_thread { | |
63adc6fb | 393 | spinlock_t if_lock; /* for list of devices */ |
c26a8016 | 394 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 395 | struct list_head th_list; |
ee74baa7 | 396 | struct task_struct *tsk; |
222f1806 | 397 | char result[512]; |
222f1806 | 398 | |
63adc6fb SH |
399 | /* Field for thread to receive "posted" events terminate, |
400 | stop ifs etc. */ | |
222f1806 LC |
401 | |
402 | u32 control; | |
1da177e4 LT |
403 | int cpu; |
404 | ||
222f1806 | 405 | wait_queue_head_t queue; |
d3ede327 | 406 | struct completion start_done; |
1da177e4 LT |
407 | }; |
408 | ||
409 | #define REMOVE 1 | |
410 | #define FIND 0 | |
411 | ||
fd29cf72 | 412 | static inline ktime_t ktime_now(void) |
1da177e4 | 413 | { |
fd29cf72 SH |
414 | struct timespec ts; |
415 | ktime_get_ts(&ts); | |
416 | ||
417 | return timespec_to_ktime(ts); | |
1da177e4 LT |
418 | } |
419 | ||
fd29cf72 SH |
420 | /* This works even if 32 bit because of careful byte order choice */ |
421 | static inline int ktime_lt(const ktime_t cmp1, const ktime_t cmp2) | |
1da177e4 | 422 | { |
fd29cf72 | 423 | return cmp1.tv64 < cmp2.tv64; |
1da177e4 LT |
424 | } |
425 | ||
c3d2f52d SH |
426 | static const char version[] = |
427 | "pktgen " VERSION ": Packet Generator for packet performance testing.\n"; | |
1da177e4 | 428 | |
222f1806 LC |
429 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
430 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
431 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
3e984840 | 432 | const char *ifname, bool exact); |
1da177e4 LT |
433 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
434 | static void pktgen_run_all_threads(void); | |
eb37b41c | 435 | static void pktgen_reset_all_threads(void); |
1da177e4 | 436 | static void pktgen_stop_all_threads_ifs(void); |
3bda06a3 | 437 | |
222f1806 | 438 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 439 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 440 | |
222f1806 LC |
441 | static unsigned int scan_ip6(const char *s, char ip[16]); |
442 | static unsigned int fmt_ip6(char *s, const char ip[16]); | |
1da177e4 LT |
443 | |
444 | /* Module parameters, defaults. */ | |
65c5b786 SH |
445 | static int pg_count_d __read_mostly = 1000; |
446 | static int pg_delay_d __read_mostly; | |
447 | static int pg_clone_skb_d __read_mostly; | |
448 | static int debug __read_mostly; | |
1da177e4 | 449 | |
222fa076 | 450 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 451 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 452 | |
1da177e4 LT |
453 | static struct notifier_block pktgen_notifier_block = { |
454 | .notifier_call = pktgen_device_event, | |
455 | }; | |
456 | ||
1da177e4 | 457 | /* |
4ec93edb | 458 | * /proc handling functions |
1da177e4 LT |
459 | * |
460 | */ | |
461 | ||
d50a6b56 | 462 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 463 | { |
c3d2f52d | 464 | seq_puts(seq, version); |
d50a6b56 | 465 | return 0; |
1da177e4 LT |
466 | } |
467 | ||
63adc6fb SH |
468 | static ssize_t pgctrl_write(struct file *file, const char __user *buf, |
469 | size_t count, loff_t *ppos) | |
1da177e4 | 470 | { |
1da177e4 | 471 | int err = 0; |
d50a6b56 | 472 | char data[128]; |
1da177e4 | 473 | |
222f1806 LC |
474 | if (!capable(CAP_NET_ADMIN)) { |
475 | err = -EPERM; | |
1da177e4 | 476 | goto out; |
222f1806 | 477 | } |
1da177e4 | 478 | |
d50a6b56 SH |
479 | if (count > sizeof(data)) |
480 | count = sizeof(data); | |
1da177e4 | 481 | |
1da177e4 | 482 | if (copy_from_user(data, buf, count)) { |
b4099fab | 483 | err = -EFAULT; |
d50a6b56 | 484 | goto out; |
222f1806 LC |
485 | } |
486 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 487 | |
222f1806 | 488 | if (!strcmp(data, "stop")) |
1da177e4 LT |
489 | pktgen_stop_all_threads_ifs(); |
490 | ||
222f1806 | 491 | else if (!strcmp(data, "start")) |
1da177e4 LT |
492 | pktgen_run_all_threads(); |
493 | ||
eb37b41c JB |
494 | else if (!strcmp(data, "reset")) |
495 | pktgen_reset_all_threads(); | |
496 | ||
222f1806 | 497 | else |
25a8b254 | 498 | printk(KERN_WARNING "pktgen: Unknown command: %s\n", data); |
1da177e4 LT |
499 | |
500 | err = count; | |
501 | ||
222f1806 LC |
502 | out: |
503 | return err; | |
1da177e4 LT |
504 | } |
505 | ||
d50a6b56 SH |
506 | static int pgctrl_open(struct inode *inode, struct file *file) |
507 | { | |
508 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
509 | } | |
510 | ||
9a32144e | 511 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
512 | .owner = THIS_MODULE, |
513 | .open = pgctrl_open, | |
514 | .read = seq_read, | |
515 | .llseek = seq_lseek, | |
516 | .write = pgctrl_write, | |
517 | .release = single_release, | |
d50a6b56 SH |
518 | }; |
519 | ||
520 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 521 | { |
648fda74 | 522 | const struct pktgen_dev *pkt_dev = seq->private; |
fd29cf72 SH |
523 | ktime_t stopped; |
524 | u64 idle; | |
222f1806 LC |
525 | |
526 | seq_printf(seq, | |
527 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
528 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
529 | pkt_dev->max_pkt_size); | |
530 | ||
531 | seq_printf(seq, | |
fd29cf72 SH |
532 | " frags: %d delay: %llu clone_skb: %d ifname: %s\n", |
533 | pkt_dev->nfrags, (unsigned long long) pkt_dev->delay, | |
593f63b0 | 534 | pkt_dev->clone_skb, pkt_dev->odevname); |
222f1806 LC |
535 | |
536 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
537 | pkt_dev->lflow); | |
538 | ||
45b270f8 RO |
539 | seq_printf(seq, |
540 | " queue_map_min: %u queue_map_max: %u\n", | |
541 | pkt_dev->queue_map_min, | |
542 | pkt_dev->queue_map_max); | |
543 | ||
222f1806 LC |
544 | if (pkt_dev->flags & F_IPV6) { |
545 | char b1[128], b2[128], b3[128]; | |
546 | fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr); | |
547 | fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr); | |
548 | fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr); | |
549 | seq_printf(seq, | |
550 | " saddr: %s min_saddr: %s max_saddr: %s\n", b1, | |
551 | b2, b3); | |
552 | ||
553 | fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr); | |
554 | fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr); | |
555 | fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr); | |
556 | seq_printf(seq, | |
557 | " daddr: %s min_daddr: %s max_daddr: %s\n", b1, | |
558 | b2, b3); | |
559 | ||
63adc6fb SH |
560 | } else { |
561 | seq_printf(seq, | |
562 | " dst_min: %s dst_max: %s\n", | |
563 | pkt_dev->dst_min, pkt_dev->dst_max); | |
222f1806 | 564 | seq_printf(seq, |
63adc6fb SH |
565 | " src_min: %s src_max: %s\n", |
566 | pkt_dev->src_min, pkt_dev->src_max); | |
567 | } | |
1da177e4 | 568 | |
222f1806 | 569 | seq_puts(seq, " src_mac: "); |
1da177e4 | 570 | |
e174961c JB |
571 | seq_printf(seq, "%pM ", |
572 | is_zero_ether_addr(pkt_dev->src_mac) ? | |
573 | pkt_dev->odev->dev_addr : pkt_dev->src_mac); | |
222f1806 LC |
574 | |
575 | seq_printf(seq, "dst_mac: "); | |
e174961c | 576 | seq_printf(seq, "%pM\n", pkt_dev->dst_mac); |
222f1806 LC |
577 | |
578 | seq_printf(seq, | |
63adc6fb SH |
579 | " udp_src_min: %d udp_src_max: %d" |
580 | " udp_dst_min: %d udp_dst_max: %d\n", | |
222f1806 LC |
581 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, |
582 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
583 | ||
584 | seq_printf(seq, | |
ca6549af | 585 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 586 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 587 | |
ca6549af SW |
588 | if (pkt_dev->nr_labels) { |
589 | unsigned i; | |
590 | seq_printf(seq, " mpls: "); | |
e71a4783 | 591 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
592 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
593 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
594 | } | |
595 | ||
63adc6fb | 596 | if (pkt_dev->vlan_id != 0xffff) |
34954ddc | 597 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
598 | pkt_dev->vlan_id, pkt_dev->vlan_p, |
599 | pkt_dev->vlan_cfi); | |
34954ddc | 600 | |
63adc6fb | 601 | if (pkt_dev->svlan_id != 0xffff) |
34954ddc | 602 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
603 | pkt_dev->svlan_id, pkt_dev->svlan_p, |
604 | pkt_dev->svlan_cfi); | |
34954ddc | 605 | |
63adc6fb | 606 | if (pkt_dev->tos) |
1ca7768c | 607 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); |
1ca7768c | 608 | |
63adc6fb | 609 | if (pkt_dev->traffic_class) |
1ca7768c | 610 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); |
1ca7768c | 611 | |
e99b99b4 RO |
612 | if (pkt_dev->node >= 0) |
613 | seq_printf(seq, " node: %d\n", pkt_dev->node); | |
614 | ||
ca6549af SW |
615 | seq_printf(seq, " Flags: "); |
616 | ||
222f1806 LC |
617 | if (pkt_dev->flags & F_IPV6) |
618 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 619 | |
222f1806 LC |
620 | if (pkt_dev->flags & F_IPSRC_RND) |
621 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 622 | |
222f1806 LC |
623 | if (pkt_dev->flags & F_IPDST_RND) |
624 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 625 | |
222f1806 LC |
626 | if (pkt_dev->flags & F_TXSIZE_RND) |
627 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 628 | |
222f1806 LC |
629 | if (pkt_dev->flags & F_UDPSRC_RND) |
630 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 631 | |
222f1806 LC |
632 | if (pkt_dev->flags & F_UDPDST_RND) |
633 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 634 | |
ca6549af SW |
635 | if (pkt_dev->flags & F_MPLS_RND) |
636 | seq_printf(seq, "MPLS_RND "); | |
637 | ||
45b270f8 RO |
638 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
639 | seq_printf(seq, "QUEUE_MAP_RND "); | |
640 | ||
e6fce5b9 RO |
641 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) |
642 | seq_printf(seq, "QUEUE_MAP_CPU "); | |
643 | ||
007a531b JHS |
644 | if (pkt_dev->cflows) { |
645 | if (pkt_dev->flags & F_FLOW_SEQ) | |
646 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
647 | else | |
648 | seq_printf(seq, "FLOW_RND "); | |
649 | } | |
650 | ||
a553e4a6 JHS |
651 | #ifdef CONFIG_XFRM |
652 | if (pkt_dev->flags & F_IPSEC_ON) | |
653 | seq_printf(seq, "IPSEC "); | |
654 | #endif | |
655 | ||
222f1806 LC |
656 | if (pkt_dev->flags & F_MACSRC_RND) |
657 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 658 | |
222f1806 LC |
659 | if (pkt_dev->flags & F_MACDST_RND) |
660 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 661 | |
34954ddc FF |
662 | if (pkt_dev->flags & F_VID_RND) |
663 | seq_printf(seq, "VID_RND "); | |
664 | ||
665 | if (pkt_dev->flags & F_SVID_RND) | |
666 | seq_printf(seq, "SVID_RND "); | |
667 | ||
e99b99b4 RO |
668 | if (pkt_dev->flags & F_NODE) |
669 | seq_printf(seq, "NODE_ALLOC "); | |
670 | ||
222f1806 LC |
671 | seq_puts(seq, "\n"); |
672 | ||
fd29cf72 SH |
673 | /* not really stopped, more like last-running-at */ |
674 | stopped = pkt_dev->running ? ktime_now() : pkt_dev->stopped_at; | |
675 | idle = pkt_dev->idle_acc; | |
676 | do_div(idle, NSEC_PER_USEC); | |
1da177e4 | 677 | |
222f1806 | 678 | seq_printf(seq, |
fd29cf72 | 679 | "Current:\n pkts-sofar: %llu errors: %llu\n", |
222f1806 | 680 | (unsigned long long)pkt_dev->sofar, |
fd29cf72 SH |
681 | (unsigned long long)pkt_dev->errors); |
682 | ||
683 | seq_printf(seq, | |
684 | " started: %lluus stopped: %lluus idle: %lluus\n", | |
685 | (unsigned long long) ktime_to_us(pkt_dev->started_at), | |
686 | (unsigned long long) ktime_to_us(stopped), | |
687 | (unsigned long long) idle); | |
1da177e4 | 688 | |
222f1806 LC |
689 | seq_printf(seq, |
690 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
691 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
692 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 693 | |
222f1806 | 694 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 695 | char b1[128], b2[128]; |
222f1806 LC |
696 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
697 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
698 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
699 | } else | |
700 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 701 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 702 | |
222f1806 | 703 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 704 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 705 | |
45b270f8 RO |
706 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
707 | ||
222f1806 | 708 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
709 | |
710 | if (pkt_dev->result[0]) | |
222f1806 | 711 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 712 | else |
222f1806 | 713 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 714 | |
d50a6b56 | 715 | return 0; |
1da177e4 LT |
716 | } |
717 | ||
ca6549af | 718 | |
63adc6fb SH |
719 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, |
720 | __u32 *num) | |
ca6549af SW |
721 | { |
722 | int i = 0; | |
723 | *num = 0; | |
724 | ||
e71a4783 | 725 | for (; i < maxlen; i++) { |
ca6549af SW |
726 | char c; |
727 | *num <<= 4; | |
728 | if (get_user(c, &user_buffer[i])) | |
729 | return -EFAULT; | |
730 | if ((c >= '0') && (c <= '9')) | |
731 | *num |= c - '0'; | |
732 | else if ((c >= 'a') && (c <= 'f')) | |
733 | *num |= c - 'a' + 10; | |
734 | else if ((c >= 'A') && (c <= 'F')) | |
735 | *num |= c - 'A' + 10; | |
736 | else | |
737 | break; | |
738 | } | |
739 | return i; | |
740 | } | |
741 | ||
222f1806 LC |
742 | static int count_trail_chars(const char __user * user_buffer, |
743 | unsigned int maxlen) | |
1da177e4 LT |
744 | { |
745 | int i; | |
746 | ||
747 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
748 | char c; |
749 | if (get_user(c, &user_buffer[i])) | |
750 | return -EFAULT; | |
751 | switch (c) { | |
1da177e4 LT |
752 | case '\"': |
753 | case '\n': | |
754 | case '\r': | |
755 | case '\t': | |
756 | case ' ': | |
757 | case '=': | |
758 | break; | |
759 | default: | |
760 | goto done; | |
3ff50b79 | 761 | } |
1da177e4 LT |
762 | } |
763 | done: | |
764 | return i; | |
765 | } | |
766 | ||
222f1806 LC |
767 | static unsigned long num_arg(const char __user * user_buffer, |
768 | unsigned long maxlen, unsigned long *num) | |
1da177e4 LT |
769 | { |
770 | int i = 0; | |
771 | *num = 0; | |
222f1806 LC |
772 | |
773 | for (; i < maxlen; i++) { | |
774 | char c; | |
775 | if (get_user(c, &user_buffer[i])) | |
776 | return -EFAULT; | |
777 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 778 | *num *= 10; |
222f1806 | 779 | *num += c - '0'; |
1da177e4 LT |
780 | } else |
781 | break; | |
782 | } | |
783 | return i; | |
784 | } | |
785 | ||
222f1806 | 786 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 LT |
787 | { |
788 | int i = 0; | |
789 | ||
222f1806 LC |
790 | for (; i < maxlen; i++) { |
791 | char c; | |
792 | if (get_user(c, &user_buffer[i])) | |
793 | return -EFAULT; | |
794 | switch (c) { | |
1da177e4 LT |
795 | case '\"': |
796 | case '\n': | |
797 | case '\r': | |
798 | case '\t': | |
799 | case ' ': | |
800 | goto done_str; | |
801 | break; | |
802 | default: | |
803 | break; | |
3ff50b79 | 804 | } |
1da177e4 LT |
805 | } |
806 | done_str: | |
1da177e4 LT |
807 | return i; |
808 | } | |
809 | ||
ca6549af SW |
810 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
811 | { | |
812 | unsigned n = 0; | |
813 | char c; | |
814 | ssize_t i = 0; | |
815 | int len; | |
816 | ||
817 | pkt_dev->nr_labels = 0; | |
818 | do { | |
819 | __u32 tmp; | |
1ca7768c | 820 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
821 | if (len <= 0) |
822 | return len; | |
823 | pkt_dev->labels[n] = htonl(tmp); | |
824 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
825 | pkt_dev->flags |= F_MPLS_RND; | |
826 | i += len; | |
827 | if (get_user(c, &buffer[i])) | |
828 | return -EFAULT; | |
829 | i++; | |
830 | n++; | |
831 | if (n >= MAX_MPLS_LABELS) | |
832 | return -E2BIG; | |
e71a4783 | 833 | } while (c == ','); |
ca6549af SW |
834 | |
835 | pkt_dev->nr_labels = n; | |
836 | return i; | |
837 | } | |
838 | ||
222f1806 LC |
839 | static ssize_t pktgen_if_write(struct file *file, |
840 | const char __user * user_buffer, size_t count, | |
841 | loff_t * offset) | |
1da177e4 | 842 | { |
222f1806 LC |
843 | struct seq_file *seq = (struct seq_file *)file->private_data; |
844 | struct pktgen_dev *pkt_dev = seq->private; | |
1da177e4 LT |
845 | int i = 0, max, len; |
846 | char name[16], valstr[32]; | |
847 | unsigned long value = 0; | |
222f1806 LC |
848 | char *pg_result = NULL; |
849 | int tmp = 0; | |
1da177e4 | 850 | char buf[128]; |
222f1806 LC |
851 | |
852 | pg_result = &(pkt_dev->result[0]); | |
853 | ||
1da177e4 | 854 | if (count < 1) { |
25a8b254 | 855 | printk(KERN_WARNING "pktgen: wrong command format\n"); |
1da177e4 LT |
856 | return -EINVAL; |
857 | } | |
222f1806 | 858 | |
1da177e4 LT |
859 | max = count - i; |
860 | tmp = count_trail_chars(&user_buffer[i], max); | |
222f1806 | 861 | if (tmp < 0) { |
25a8b254 | 862 | printk(KERN_WARNING "pktgen: illegal format\n"); |
222f1806 | 863 | return tmp; |
1da177e4 | 864 | } |
222f1806 LC |
865 | i += tmp; |
866 | ||
1da177e4 LT |
867 | /* Read variable name */ |
868 | ||
869 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
63adc6fb | 870 | if (len < 0) |
222f1806 | 871 | return len; |
63adc6fb | 872 | |
1da177e4 | 873 | memset(name, 0, sizeof(name)); |
222f1806 | 874 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
875 | return -EFAULT; |
876 | i += len; | |
222f1806 LC |
877 | |
878 | max = count - i; | |
1da177e4 | 879 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
880 | if (len < 0) |
881 | return len; | |
882 | ||
1da177e4 LT |
883 | i += len; |
884 | ||
885 | if (debug) { | |
222f1806 LC |
886 | char tb[count + 1]; |
887 | if (copy_from_user(tb, user_buffer, count)) | |
1da177e4 | 888 | return -EFAULT; |
222f1806 | 889 | tb[count] = 0; |
25a8b254 | 890 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
891 | (unsigned long)count, tb); |
892 | } | |
1da177e4 LT |
893 | |
894 | if (!strcmp(name, "min_pkt_size")) { | |
895 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 896 | if (len < 0) |
222f1806 | 897 | return len; |
63adc6fb | 898 | |
1da177e4 | 899 | i += len; |
222f1806 LC |
900 | if (value < 14 + 20 + 8) |
901 | value = 14 + 20 + 8; | |
902 | if (value != pkt_dev->min_pkt_size) { | |
903 | pkt_dev->min_pkt_size = value; | |
904 | pkt_dev->cur_pkt_size = value; | |
905 | } | |
906 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
907 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
908 | return count; |
909 | } | |
910 | ||
222f1806 | 911 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 912 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 913 | if (len < 0) |
222f1806 | 914 | return len; |
63adc6fb | 915 | |
1da177e4 | 916 | i += len; |
222f1806 LC |
917 | if (value < 14 + 20 + 8) |
918 | value = 14 + 20 + 8; | |
919 | if (value != pkt_dev->max_pkt_size) { | |
920 | pkt_dev->max_pkt_size = value; | |
921 | pkt_dev->cur_pkt_size = value; | |
922 | } | |
923 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
924 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
925 | return count; |
926 | } | |
927 | ||
222f1806 | 928 | /* Shortcut for min = max */ |
1da177e4 LT |
929 | |
930 | if (!strcmp(name, "pkt_size")) { | |
931 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 932 | if (len < 0) |
222f1806 | 933 | return len; |
63adc6fb | 934 | |
1da177e4 | 935 | i += len; |
222f1806 LC |
936 | if (value < 14 + 20 + 8) |
937 | value = 14 + 20 + 8; | |
938 | if (value != pkt_dev->min_pkt_size) { | |
939 | pkt_dev->min_pkt_size = value; | |
940 | pkt_dev->max_pkt_size = value; | |
941 | pkt_dev->cur_pkt_size = value; | |
942 | } | |
1da177e4 LT |
943 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
944 | return count; | |
945 | } | |
946 | ||
222f1806 | 947 | if (!strcmp(name, "debug")) { |
1da177e4 | 948 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 949 | if (len < 0) |
222f1806 | 950 | return len; |
63adc6fb | 951 | |
1da177e4 | 952 | i += len; |
222f1806 | 953 | debug = value; |
1da177e4 LT |
954 | sprintf(pg_result, "OK: debug=%u", debug); |
955 | return count; | |
956 | } | |
957 | ||
222f1806 | 958 | if (!strcmp(name, "frags")) { |
1da177e4 | 959 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 960 | if (len < 0) |
222f1806 | 961 | return len; |
63adc6fb | 962 | |
1da177e4 LT |
963 | i += len; |
964 | pkt_dev->nfrags = value; | |
965 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
966 | return count; | |
967 | } | |
968 | if (!strcmp(name, "delay")) { | |
969 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 970 | if (len < 0) |
222f1806 | 971 | return len; |
63adc6fb | 972 | |
1da177e4 | 973 | i += len; |
fd29cf72 SH |
974 | if (value == 0x7FFFFFFF) |
975 | pkt_dev->delay = ULLONG_MAX; | |
976 | else | |
9240d715 | 977 | pkt_dev->delay = (u64)value; |
fd29cf72 SH |
978 | |
979 | sprintf(pg_result, "OK: delay=%llu", | |
980 | (unsigned long long) pkt_dev->delay); | |
1da177e4 LT |
981 | return count; |
982 | } | |
43d28b65 DT |
983 | if (!strcmp(name, "rate")) { |
984 | len = num_arg(&user_buffer[i], 10, &value); | |
985 | if (len < 0) | |
986 | return len; | |
987 | ||
988 | i += len; | |
989 | if (!value) | |
990 | return len; | |
991 | pkt_dev->delay = pkt_dev->min_pkt_size*8*NSEC_PER_USEC/value; | |
992 | if (debug) | |
993 | printk(KERN_INFO | |
994 | "pktgen: Delay set at: %llu ns\n", | |
995 | pkt_dev->delay); | |
996 | ||
997 | sprintf(pg_result, "OK: rate=%lu", value); | |
998 | return count; | |
999 | } | |
1000 | if (!strcmp(name, "ratep")) { | |
1001 | len = num_arg(&user_buffer[i], 10, &value); | |
1002 | if (len < 0) | |
1003 | return len; | |
1004 | ||
1005 | i += len; | |
1006 | if (!value) | |
1007 | return len; | |
1008 | pkt_dev->delay = NSEC_PER_SEC/value; | |
1009 | if (debug) | |
1010 | printk(KERN_INFO | |
1011 | "pktgen: Delay set at: %llu ns\n", | |
1012 | pkt_dev->delay); | |
1013 | ||
1014 | sprintf(pg_result, "OK: rate=%lu", value); | |
1015 | return count; | |
1016 | } | |
222f1806 | 1017 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 1018 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1019 | if (len < 0) |
222f1806 | 1020 | return len; |
63adc6fb | 1021 | |
1da177e4 | 1022 | i += len; |
222f1806 LC |
1023 | if (value != pkt_dev->udp_src_min) { |
1024 | pkt_dev->udp_src_min = value; | |
1025 | pkt_dev->cur_udp_src = value; | |
1026 | } | |
1da177e4 LT |
1027 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
1028 | return count; | |
1029 | } | |
222f1806 | 1030 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 1031 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1032 | if (len < 0) |
222f1806 | 1033 | return len; |
63adc6fb | 1034 | |
1da177e4 | 1035 | i += len; |
222f1806 LC |
1036 | if (value != pkt_dev->udp_dst_min) { |
1037 | pkt_dev->udp_dst_min = value; | |
1038 | pkt_dev->cur_udp_dst = value; | |
1039 | } | |
1da177e4 LT |
1040 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
1041 | return count; | |
1042 | } | |
222f1806 | 1043 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 1044 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1045 | if (len < 0) |
222f1806 | 1046 | return len; |
63adc6fb | 1047 | |
1da177e4 | 1048 | i += len; |
222f1806 LC |
1049 | if (value != pkt_dev->udp_src_max) { |
1050 | pkt_dev->udp_src_max = value; | |
1051 | pkt_dev->cur_udp_src = value; | |
1052 | } | |
1da177e4 LT |
1053 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
1054 | return count; | |
1055 | } | |
222f1806 | 1056 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 1057 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1058 | if (len < 0) |
222f1806 | 1059 | return len; |
63adc6fb | 1060 | |
1da177e4 | 1061 | i += len; |
222f1806 LC |
1062 | if (value != pkt_dev->udp_dst_max) { |
1063 | pkt_dev->udp_dst_max = value; | |
1064 | pkt_dev->cur_udp_dst = value; | |
1065 | } | |
1da177e4 LT |
1066 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1067 | return count; | |
1068 | } | |
1069 | if (!strcmp(name, "clone_skb")) { | |
1070 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1071 | if (len < 0) |
222f1806 | 1072 | return len; |
63adc6fb | 1073 | |
1da177e4 | 1074 | i += len; |
222f1806 LC |
1075 | pkt_dev->clone_skb = value; |
1076 | ||
1da177e4 LT |
1077 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1078 | return count; | |
1079 | } | |
1080 | if (!strcmp(name, "count")) { | |
1081 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1082 | if (len < 0) |
222f1806 | 1083 | return len; |
63adc6fb | 1084 | |
1da177e4 LT |
1085 | i += len; |
1086 | pkt_dev->count = value; | |
1087 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1088 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1089 | return count; |
1090 | } | |
1091 | if (!strcmp(name, "src_mac_count")) { | |
1092 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1093 | if (len < 0) |
222f1806 | 1094 | return len; |
63adc6fb | 1095 | |
1da177e4 LT |
1096 | i += len; |
1097 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1098 | pkt_dev->src_mac_count = value; |
1099 | pkt_dev->cur_src_mac_offset = 0; | |
1100 | } | |
1101 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1102 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1103 | return count; |
1104 | } | |
1105 | if (!strcmp(name, "dst_mac_count")) { | |
1106 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1107 | if (len < 0) |
222f1806 | 1108 | return len; |
63adc6fb | 1109 | |
1da177e4 LT |
1110 | i += len; |
1111 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1112 | pkt_dev->dst_mac_count = value; |
1113 | pkt_dev->cur_dst_mac_offset = 0; | |
1114 | } | |
1115 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1116 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1117 | return count; |
1118 | } | |
e99b99b4 RO |
1119 | if (!strcmp(name, "node")) { |
1120 | len = num_arg(&user_buffer[i], 10, &value); | |
1121 | if (len < 0) | |
1122 | return len; | |
1123 | ||
1124 | i += len; | |
1125 | ||
1126 | if (node_possible(value)) { | |
1127 | pkt_dev->node = value; | |
1128 | sprintf(pg_result, "OK: node=%d", pkt_dev->node); | |
1129 | } | |
1130 | else | |
1131 | sprintf(pg_result, "ERROR: node not possible"); | |
1132 | return count; | |
1133 | } | |
1da177e4 | 1134 | if (!strcmp(name, "flag")) { |
222f1806 LC |
1135 | char f[32]; |
1136 | memset(f, 0, 32); | |
1da177e4 | 1137 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
63adc6fb | 1138 | if (len < 0) |
222f1806 | 1139 | return len; |
63adc6fb | 1140 | |
1da177e4 LT |
1141 | if (copy_from_user(f, &user_buffer[i], len)) |
1142 | return -EFAULT; | |
1143 | i += len; | |
222f1806 LC |
1144 | if (strcmp(f, "IPSRC_RND") == 0) |
1145 | pkt_dev->flags |= F_IPSRC_RND; | |
1146 | ||
1147 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1148 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1149 | ||
1150 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1151 | pkt_dev->flags |= F_TXSIZE_RND; | |
1152 | ||
1153 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1154 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1155 | ||
1156 | else if (strcmp(f, "IPDST_RND") == 0) | |
1157 | pkt_dev->flags |= F_IPDST_RND; | |
1158 | ||
1159 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1160 | pkt_dev->flags &= ~F_IPDST_RND; | |
1161 | ||
1162 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1163 | pkt_dev->flags |= F_UDPSRC_RND; | |
1164 | ||
1165 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1166 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1167 | ||
1168 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1169 | pkt_dev->flags |= F_UDPDST_RND; | |
1170 | ||
1171 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1172 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1173 | ||
1174 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1175 | pkt_dev->flags |= F_MACSRC_RND; | |
1176 | ||
1177 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1178 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1179 | ||
1180 | else if (strcmp(f, "MACDST_RND") == 0) | |
1181 | pkt_dev->flags |= F_MACDST_RND; | |
1182 | ||
1183 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1184 | pkt_dev->flags &= ~F_MACDST_RND; | |
1185 | ||
ca6549af SW |
1186 | else if (strcmp(f, "MPLS_RND") == 0) |
1187 | pkt_dev->flags |= F_MPLS_RND; | |
1188 | ||
1189 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1190 | pkt_dev->flags &= ~F_MPLS_RND; | |
1191 | ||
34954ddc FF |
1192 | else if (strcmp(f, "VID_RND") == 0) |
1193 | pkt_dev->flags |= F_VID_RND; | |
1194 | ||
1195 | else if (strcmp(f, "!VID_RND") == 0) | |
1196 | pkt_dev->flags &= ~F_VID_RND; | |
1197 | ||
1198 | else if (strcmp(f, "SVID_RND") == 0) | |
1199 | pkt_dev->flags |= F_SVID_RND; | |
1200 | ||
1201 | else if (strcmp(f, "!SVID_RND") == 0) | |
1202 | pkt_dev->flags &= ~F_SVID_RND; | |
1203 | ||
007a531b JHS |
1204 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1205 | pkt_dev->flags |= F_FLOW_SEQ; | |
1206 | ||
45b270f8 RO |
1207 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1208 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1209 | ||
1210 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1211 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
e6fce5b9 RO |
1212 | |
1213 | else if (strcmp(f, "QUEUE_MAP_CPU") == 0) | |
1214 | pkt_dev->flags |= F_QUEUE_MAP_CPU; | |
1215 | ||
1216 | else if (strcmp(f, "!QUEUE_MAP_CPU") == 0) | |
1217 | pkt_dev->flags &= ~F_QUEUE_MAP_CPU; | |
a553e4a6 JHS |
1218 | #ifdef CONFIG_XFRM |
1219 | else if (strcmp(f, "IPSEC") == 0) | |
1220 | pkt_dev->flags |= F_IPSEC_ON; | |
1221 | #endif | |
1222 | ||
1ca7768c FF |
1223 | else if (strcmp(f, "!IPV6") == 0) |
1224 | pkt_dev->flags &= ~F_IPV6; | |
1225 | ||
e99b99b4 RO |
1226 | else if (strcmp(f, "NODE_ALLOC") == 0) |
1227 | pkt_dev->flags |= F_NODE; | |
1228 | ||
1229 | else if (strcmp(f, "!NODE_ALLOC") == 0) | |
1230 | pkt_dev->flags &= ~F_NODE; | |
1231 | ||
222f1806 LC |
1232 | else { |
1233 | sprintf(pg_result, | |
1234 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1235 | f, | |
1ca7768c | 1236 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
e99b99b4 | 1237 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC, NODE_ALLOC\n"); |
222f1806 LC |
1238 | return count; |
1239 | } | |
1da177e4 LT |
1240 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1241 | return count; | |
1242 | } | |
1243 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1244 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
63adc6fb | 1245 | if (len < 0) |
222f1806 | 1246 | return len; |
1da177e4 | 1247 | |
222f1806 | 1248 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1249 | return -EFAULT; |
222f1806 LC |
1250 | buf[len] = 0; |
1251 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1252 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1253 | strncpy(pkt_dev->dst_min, buf, len); | |
1254 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1255 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1256 | } | |
1257 | if (debug) | |
25a8b254 | 1258 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1259 | pkt_dev->dst_min); |
1260 | i += len; | |
1da177e4 LT |
1261 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1262 | return count; | |
1263 | } | |
1264 | if (!strcmp(name, "dst_max")) { | |
1265 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
63adc6fb | 1266 | if (len < 0) |
222f1806 | 1267 | return len; |
63adc6fb | 1268 | |
1da177e4 | 1269 | |
222f1806 | 1270 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1271 | return -EFAULT; |
1272 | ||
222f1806 LC |
1273 | buf[len] = 0; |
1274 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1275 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1276 | strncpy(pkt_dev->dst_max, buf, len); | |
1277 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1278 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1279 | } | |
1280 | if (debug) | |
25a8b254 | 1281 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1282 | pkt_dev->dst_max); |
1da177e4 LT |
1283 | i += len; |
1284 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1285 | return count; | |
1286 | } | |
1287 | if (!strcmp(name, "dst6")) { | |
1288 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1289 | if (len < 0) |
1290 | return len; | |
1da177e4 LT |
1291 | |
1292 | pkt_dev->flags |= F_IPV6; | |
1293 | ||
222f1806 | 1294 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1295 | return -EFAULT; |
222f1806 | 1296 | buf[len] = 0; |
1da177e4 LT |
1297 | |
1298 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1299 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1300 | |
1301 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1302 | ||
222f1806 | 1303 | if (debug) |
25a8b254 | 1304 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1305 | |
222f1806 | 1306 | i += len; |
1da177e4 LT |
1307 | sprintf(pg_result, "OK: dst6=%s", buf); |
1308 | return count; | |
1309 | } | |
1310 | if (!strcmp(name, "dst6_min")) { | |
1311 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1312 | if (len < 0) |
1313 | return len; | |
1da177e4 LT |
1314 | |
1315 | pkt_dev->flags |= F_IPV6; | |
1316 | ||
222f1806 | 1317 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1318 | return -EFAULT; |
222f1806 | 1319 | buf[len] = 0; |
1da177e4 LT |
1320 | |
1321 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1322 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1323 | |
222f1806 LC |
1324 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1325 | &pkt_dev->min_in6_daddr); | |
1326 | if (debug) | |
25a8b254 | 1327 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1328 | |
222f1806 | 1329 | i += len; |
1da177e4 LT |
1330 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1331 | return count; | |
1332 | } | |
1333 | if (!strcmp(name, "dst6_max")) { | |
1334 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1335 | if (len < 0) |
1336 | return len; | |
1da177e4 LT |
1337 | |
1338 | pkt_dev->flags |= F_IPV6; | |
1339 | ||
222f1806 | 1340 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1341 | return -EFAULT; |
222f1806 | 1342 | buf[len] = 0; |
1da177e4 LT |
1343 | |
1344 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1345 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1346 | |
222f1806 | 1347 | if (debug) |
25a8b254 | 1348 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1349 | |
222f1806 | 1350 | i += len; |
1da177e4 LT |
1351 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1352 | return count; | |
1353 | } | |
1354 | if (!strcmp(name, "src6")) { | |
1355 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1356 | if (len < 0) |
1357 | return len; | |
1da177e4 LT |
1358 | |
1359 | pkt_dev->flags |= F_IPV6; | |
1360 | ||
222f1806 | 1361 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1362 | return -EFAULT; |
222f1806 | 1363 | buf[len] = 0; |
1da177e4 LT |
1364 | |
1365 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1366 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1367 | |
1368 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1369 | ||
222f1806 | 1370 | if (debug) |
25a8b254 | 1371 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1372 | |
1373 | i += len; | |
1da177e4 LT |
1374 | sprintf(pg_result, "OK: src6=%s", buf); |
1375 | return count; | |
1376 | } | |
1377 | if (!strcmp(name, "src_min")) { | |
1378 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
63adc6fb | 1379 | if (len < 0) |
222f1806 | 1380 | return len; |
63adc6fb | 1381 | |
222f1806 | 1382 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1383 | return -EFAULT; |
222f1806 LC |
1384 | buf[len] = 0; |
1385 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1386 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1387 | strncpy(pkt_dev->src_min, buf, len); | |
1388 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1389 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1390 | } | |
1391 | if (debug) | |
25a8b254 | 1392 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1393 | pkt_dev->src_min); |
1da177e4 LT |
1394 | i += len; |
1395 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1396 | return count; | |
1397 | } | |
1398 | if (!strcmp(name, "src_max")) { | |
1399 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
63adc6fb | 1400 | if (len < 0) |
222f1806 | 1401 | return len; |
63adc6fb | 1402 | |
222f1806 | 1403 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1404 | return -EFAULT; |
222f1806 LC |
1405 | buf[len] = 0; |
1406 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1407 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1408 | strncpy(pkt_dev->src_max, buf, len); | |
1409 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1410 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1411 | } | |
1412 | if (debug) | |
25a8b254 | 1413 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1414 | pkt_dev->src_max); |
1da177e4 LT |
1415 | i += len; |
1416 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1417 | return count; | |
1418 | } | |
1419 | if (!strcmp(name, "dst_mac")) { | |
1420 | char *v = valstr; | |
f404e9a6 | 1421 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1422 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1423 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1424 | |
1da177e4 | 1425 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1426 | if (len < 0) |
222f1806 | 1427 | return len; |
63adc6fb | 1428 | |
1da177e4 | 1429 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1430 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1431 | return -EFAULT; |
1432 | i += len; | |
1433 | ||
222f1806 | 1434 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
1da177e4 LT |
1435 | if (*v >= '0' && *v <= '9') { |
1436 | *m *= 16; | |
1437 | *m += *v - '0'; | |
1438 | } | |
1439 | if (*v >= 'A' && *v <= 'F') { | |
1440 | *m *= 16; | |
1441 | *m += *v - 'A' + 10; | |
1442 | } | |
1443 | if (*v >= 'a' && *v <= 'f') { | |
1444 | *m *= 16; | |
1445 | *m += *v - 'a' + 10; | |
1446 | } | |
1447 | if (*v == ':') { | |
1448 | m++; | |
1449 | *m = 0; | |
1450 | } | |
1451 | } | |
1452 | ||
1453 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1454 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1455 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1456 | |
1da177e4 LT |
1457 | sprintf(pg_result, "OK: dstmac"); |
1458 | return count; | |
1459 | } | |
1460 | if (!strcmp(name, "src_mac")) { | |
1461 | char *v = valstr; | |
ce5d0b47 | 1462 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1463 | unsigned char *m = pkt_dev->src_mac; |
1464 | ||
ce5d0b47 AR |
1465 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1466 | ||
1da177e4 | 1467 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1468 | if (len < 0) |
222f1806 | 1469 | return len; |
63adc6fb | 1470 | |
1da177e4 | 1471 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1472 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1473 | return -EFAULT; |
1474 | i += len; | |
1475 | ||
222f1806 | 1476 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
1da177e4 LT |
1477 | if (*v >= '0' && *v <= '9') { |
1478 | *m *= 16; | |
1479 | *m += *v - '0'; | |
1480 | } | |
1481 | if (*v >= 'A' && *v <= 'F') { | |
1482 | *m *= 16; | |
1483 | *m += *v - 'A' + 10; | |
1484 | } | |
1485 | if (*v >= 'a' && *v <= 'f') { | |
1486 | *m *= 16; | |
1487 | *m += *v - 'a' + 10; | |
1488 | } | |
1489 | if (*v == ':') { | |
1490 | m++; | |
1491 | *m = 0; | |
1492 | } | |
222f1806 | 1493 | } |
1da177e4 | 1494 | |
ce5d0b47 AR |
1495 | /* Set up Src MAC */ |
1496 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1497 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1498 | ||
222f1806 | 1499 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1500 | return count; |
1501 | } | |
1502 | ||
222f1806 LC |
1503 | if (!strcmp(name, "clear_counters")) { |
1504 | pktgen_clear_counters(pkt_dev); | |
1505 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1506 | return count; | |
1507 | } | |
1da177e4 LT |
1508 | |
1509 | if (!strcmp(name, "flows")) { | |
1510 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1511 | if (len < 0) |
222f1806 | 1512 | return len; |
63adc6fb | 1513 | |
1da177e4 LT |
1514 | i += len; |
1515 | if (value > MAX_CFLOWS) | |
1516 | value = MAX_CFLOWS; | |
1517 | ||
1518 | pkt_dev->cflows = value; | |
1519 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1520 | return count; | |
1521 | } | |
1522 | ||
1523 | if (!strcmp(name, "flowlen")) { | |
1524 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1525 | if (len < 0) |
222f1806 | 1526 | return len; |
63adc6fb | 1527 | |
1da177e4 LT |
1528 | i += len; |
1529 | pkt_dev->lflow = value; | |
1530 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1531 | return count; | |
1532 | } | |
222f1806 | 1533 | |
45b270f8 RO |
1534 | if (!strcmp(name, "queue_map_min")) { |
1535 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1536 | if (len < 0) |
45b270f8 | 1537 | return len; |
63adc6fb | 1538 | |
45b270f8 RO |
1539 | i += len; |
1540 | pkt_dev->queue_map_min = value; | |
1541 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1542 | return count; | |
1543 | } | |
1544 | ||
1545 | if (!strcmp(name, "queue_map_max")) { | |
1546 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1547 | if (len < 0) |
45b270f8 | 1548 | return len; |
63adc6fb | 1549 | |
45b270f8 RO |
1550 | i += len; |
1551 | pkt_dev->queue_map_max = value; | |
1552 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1553 | return count; | |
1554 | } | |
1555 | ||
ca6549af | 1556 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1557 | unsigned n, cnt; |
1558 | ||
ca6549af | 1559 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1560 | if (len < 0) |
1561 | return len; | |
ca6549af | 1562 | i += len; |
cfcabdcc | 1563 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1564 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1565 | cnt += sprintf(pg_result + cnt, |
1566 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1567 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1568 | |
1569 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1570 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1571 | pkt_dev->svlan_id = 0xffff; | |
1572 | ||
1573 | if (debug) | |
25a8b254 | 1574 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1575 | } |
1576 | return count; | |
1577 | } | |
1578 | ||
1579 | if (!strcmp(name, "vlan_id")) { | |
1580 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1581 | if (len < 0) |
34954ddc | 1582 | return len; |
63adc6fb | 1583 | |
34954ddc FF |
1584 | i += len; |
1585 | if (value <= 4095) { | |
1586 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1587 | ||
1588 | if (debug) | |
25a8b254 | 1589 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1590 | |
1591 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1592 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1593 | |
1594 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1595 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1596 | } else { | |
1597 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1598 | pkt_dev->svlan_id = 0xffff; | |
1599 | ||
1600 | if (debug) | |
25a8b254 | 1601 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1602 | } |
1603 | return count; | |
1604 | } | |
1605 | ||
1606 | if (!strcmp(name, "vlan_p")) { | |
1607 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1608 | if (len < 0) |
34954ddc | 1609 | return len; |
63adc6fb | 1610 | |
34954ddc FF |
1611 | i += len; |
1612 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1613 | pkt_dev->vlan_p = value; | |
1614 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1615 | } else { | |
1616 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1617 | } | |
1618 | return count; | |
1619 | } | |
1620 | ||
1621 | if (!strcmp(name, "vlan_cfi")) { | |
1622 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1623 | if (len < 0) |
34954ddc | 1624 | return len; |
63adc6fb | 1625 | |
34954ddc FF |
1626 | i += len; |
1627 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1628 | pkt_dev->vlan_cfi = value; | |
1629 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1630 | } else { | |
1631 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1632 | } | |
1633 | return count; | |
1634 | } | |
1635 | ||
1636 | if (!strcmp(name, "svlan_id")) { | |
1637 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1638 | if (len < 0) |
34954ddc | 1639 | return len; |
63adc6fb | 1640 | |
34954ddc FF |
1641 | i += len; |
1642 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1643 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1644 | ||
1645 | if (debug) | |
25a8b254 | 1646 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1647 | |
1648 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1649 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1650 | |
1651 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1652 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1653 | } else { | |
1654 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1655 | pkt_dev->svlan_id = 0xffff; | |
1656 | ||
1657 | if (debug) | |
25a8b254 | 1658 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1659 | } |
1660 | return count; | |
1661 | } | |
1662 | ||
1663 | if (!strcmp(name, "svlan_p")) { | |
1664 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1665 | if (len < 0) |
34954ddc | 1666 | return len; |
63adc6fb | 1667 | |
34954ddc FF |
1668 | i += len; |
1669 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1670 | pkt_dev->svlan_p = value; | |
1671 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1672 | } else { | |
1673 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1674 | } | |
1675 | return count; | |
1676 | } | |
1677 | ||
1678 | if (!strcmp(name, "svlan_cfi")) { | |
1679 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1680 | if (len < 0) |
34954ddc | 1681 | return len; |
63adc6fb | 1682 | |
34954ddc FF |
1683 | i += len; |
1684 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1685 | pkt_dev->svlan_cfi = value; | |
1686 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1687 | } else { | |
1688 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1689 | } | |
ca6549af SW |
1690 | return count; |
1691 | } | |
1692 | ||
1ca7768c FF |
1693 | if (!strcmp(name, "tos")) { |
1694 | __u32 tmp_value = 0; | |
1695 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1696 | if (len < 0) |
1ca7768c | 1697 | return len; |
63adc6fb | 1698 | |
1ca7768c FF |
1699 | i += len; |
1700 | if (len == 2) { | |
1701 | pkt_dev->tos = tmp_value; | |
1702 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1703 | } else { | |
1704 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1705 | } | |
1706 | return count; | |
1707 | } | |
1708 | ||
1709 | if (!strcmp(name, "traffic_class")) { | |
1710 | __u32 tmp_value = 0; | |
1711 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1712 | if (len < 0) |
1ca7768c | 1713 | return len; |
63adc6fb | 1714 | |
1ca7768c FF |
1715 | i += len; |
1716 | if (len == 2) { | |
1717 | pkt_dev->traffic_class = tmp_value; | |
1718 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1719 | } else { | |
1720 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1721 | } | |
1722 | return count; | |
1723 | } | |
1724 | ||
1da177e4 LT |
1725 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1726 | return -EINVAL; | |
1727 | } | |
1728 | ||
d50a6b56 | 1729 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1730 | { |
d50a6b56 SH |
1731 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1732 | } | |
1da177e4 | 1733 | |
9a32144e | 1734 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1735 | .owner = THIS_MODULE, |
1736 | .open = pktgen_if_open, | |
1737 | .read = seq_read, | |
1738 | .llseek = seq_lseek, | |
1739 | .write = pktgen_if_write, | |
1740 | .release = single_release, | |
d50a6b56 | 1741 | }; |
1da177e4 | 1742 | |
d50a6b56 SH |
1743 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1744 | { | |
222f1806 | 1745 | struct pktgen_thread *t = seq->private; |
648fda74 | 1746 | const struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1747 | |
1748 | BUG_ON(!t); | |
1da177e4 | 1749 | |
222f1806 | 1750 | seq_printf(seq, "Running: "); |
1da177e4 | 1751 | |
222f1806 | 1752 | if_lock(t); |
c26a8016 | 1753 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1754 | if (pkt_dev->running) |
593f63b0 | 1755 | seq_printf(seq, "%s ", pkt_dev->odevname); |
1da177e4 | 1756 | |
222f1806 LC |
1757 | seq_printf(seq, "\nStopped: "); |
1758 | ||
c26a8016 | 1759 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1760 | if (!pkt_dev->running) |
593f63b0 | 1761 | seq_printf(seq, "%s ", pkt_dev->odevname); |
1da177e4 LT |
1762 | |
1763 | if (t->result[0]) | |
d50a6b56 | 1764 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1765 | else |
d50a6b56 | 1766 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1767 | |
222f1806 | 1768 | if_unlock(t); |
1da177e4 | 1769 | |
d50a6b56 | 1770 | return 0; |
1da177e4 LT |
1771 | } |
1772 | ||
d50a6b56 | 1773 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1774 | const char __user * user_buffer, |
1775 | size_t count, loff_t * offset) | |
1da177e4 | 1776 | { |
222f1806 LC |
1777 | struct seq_file *seq = (struct seq_file *)file->private_data; |
1778 | struct pktgen_thread *t = seq->private; | |
1da177e4 LT |
1779 | int i = 0, max, len, ret; |
1780 | char name[40]; | |
222f1806 | 1781 | char *pg_result; |
d50a6b56 | 1782 | |
1da177e4 | 1783 | if (count < 1) { |
222f1806 | 1784 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1785 | return -EINVAL; |
1786 | } | |
d50a6b56 | 1787 | |
1da177e4 | 1788 | max = count - i; |
222f1806 LC |
1789 | len = count_trail_chars(&user_buffer[i], max); |
1790 | if (len < 0) | |
d50a6b56 SH |
1791 | return len; |
1792 | ||
1da177e4 | 1793 | i += len; |
d50a6b56 | 1794 | |
1da177e4 LT |
1795 | /* Read variable name */ |
1796 | ||
1797 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1798 | if (len < 0) |
d50a6b56 | 1799 | return len; |
222f1806 | 1800 | |
1da177e4 LT |
1801 | memset(name, 0, sizeof(name)); |
1802 | if (copy_from_user(name, &user_buffer[i], len)) | |
1803 | return -EFAULT; | |
1804 | i += len; | |
d50a6b56 | 1805 | |
222f1806 | 1806 | max = count - i; |
1da177e4 | 1807 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1808 | if (len < 0) |
d50a6b56 SH |
1809 | return len; |
1810 | ||
1da177e4 LT |
1811 | i += len; |
1812 | ||
d50a6b56 | 1813 | if (debug) |
25a8b254 DM |
1814 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1815 | name, (unsigned long)count); | |
1da177e4 | 1816 | |
222f1806 | 1817 | if (!t) { |
25a8b254 | 1818 | printk(KERN_ERR "pktgen: ERROR: No thread\n"); |
1da177e4 LT |
1819 | ret = -EINVAL; |
1820 | goto out; | |
1821 | } | |
1822 | ||
1823 | pg_result = &(t->result[0]); | |
1824 | ||
222f1806 LC |
1825 | if (!strcmp(name, "add_device")) { |
1826 | char f[32]; | |
1827 | memset(f, 0, 32); | |
1da177e4 | 1828 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1829 | if (len < 0) { |
1830 | ret = len; | |
1da177e4 LT |
1831 | goto out; |
1832 | } | |
222f1806 | 1833 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1834 | return -EFAULT; |
1835 | i += len; | |
6146e6a4 | 1836 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1837 | pktgen_add_device(t, f); |
6146e6a4 | 1838 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1839 | ret = count; |
1840 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1841 | goto out; |
1842 | } | |
1843 | ||
222f1806 | 1844 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1845 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1846 | t->control |= T_REMDEVALL; |
6146e6a4 | 1847 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1848 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1849 | ret = count; |
222f1806 | 1850 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1851 | goto out; |
1852 | } | |
1853 | ||
222f1806 | 1854 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1855 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1856 | ret = count; |
1da177e4 LT |
1857 | goto out; |
1858 | } | |
1859 | ||
1860 | ret = -EINVAL; | |
222f1806 | 1861 | out: |
1da177e4 LT |
1862 | return ret; |
1863 | } | |
1864 | ||
d50a6b56 | 1865 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1866 | { |
d50a6b56 | 1867 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1868 | } |
1869 | ||
9a32144e | 1870 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1871 | .owner = THIS_MODULE, |
1872 | .open = pktgen_thread_open, | |
1873 | .read = seq_read, | |
1874 | .llseek = seq_lseek, | |
1875 | .write = pktgen_thread_write, | |
1876 | .release = single_release, | |
d50a6b56 | 1877 | }; |
1da177e4 LT |
1878 | |
1879 | /* Think find or remove for NN */ | |
222f1806 | 1880 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1881 | { |
1882 | struct pktgen_thread *t; | |
1883 | struct pktgen_dev *pkt_dev = NULL; | |
3e984840 | 1884 | bool exact = (remove == FIND); |
1da177e4 | 1885 | |
cdcdbe0b | 1886 | list_for_each_entry(t, &pktgen_threads, th_list) { |
3e984840 | 1887 | pkt_dev = pktgen_find_dev(t, ifname, exact); |
1da177e4 | 1888 | if (pkt_dev) { |
222f1806 LC |
1889 | if (remove) { |
1890 | if_lock(t); | |
1891 | pkt_dev->removal_mark = 1; | |
1892 | t->control |= T_REMDEV; | |
1893 | if_unlock(t); | |
1894 | } | |
1da177e4 LT |
1895 | break; |
1896 | } | |
1da177e4 | 1897 | } |
222f1806 | 1898 | return pkt_dev; |
1da177e4 LT |
1899 | } |
1900 | ||
95ed63f7 AK |
1901 | /* |
1902 | * mark a device for removal | |
1903 | */ | |
39df232f | 1904 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1905 | { |
1906 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1907 | const int max_tries = 10, msec_per_try = 125; |
1908 | int i = 0; | |
95ed63f7 | 1909 | |
6146e6a4 | 1910 | mutex_lock(&pktgen_thread_lock); |
25c4e53a | 1911 | pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname); |
95ed63f7 | 1912 | |
222f1806 | 1913 | while (1) { |
95ed63f7 AK |
1914 | |
1915 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1916 | if (pkt_dev == NULL) |
1917 | break; /* success */ | |
95ed63f7 | 1918 | |
6146e6a4 | 1919 | mutex_unlock(&pktgen_thread_lock); |
25c4e53a SH |
1920 | pr_debug("pktgen: pktgen_mark_device waiting for %s " |
1921 | "to disappear....\n", ifname); | |
95ed63f7 | 1922 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1923 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1924 | |
1925 | if (++i >= max_tries) { | |
25a8b254 DM |
1926 | printk(KERN_ERR "pktgen_mark_device: timed out after " |
1927 | "waiting %d msec for device %s to be removed\n", | |
222f1806 | 1928 | msec_per_try * i, ifname); |
95ed63f7 AK |
1929 | break; |
1930 | } | |
1931 | ||
1932 | } | |
1933 | ||
6146e6a4 | 1934 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1935 | } |
95ed63f7 | 1936 | |
39df232f SH |
1937 | static void pktgen_change_name(struct net_device *dev) |
1938 | { | |
1939 | struct pktgen_thread *t; | |
1940 | ||
1941 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1942 | struct pktgen_dev *pkt_dev; | |
1943 | ||
1944 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1945 | if (pkt_dev->odev != dev) | |
1946 | continue; | |
1947 | ||
1948 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1949 | ||
2975315b AD |
1950 | pkt_dev->entry = proc_create_data(dev->name, 0600, |
1951 | pg_proc_dir, | |
1952 | &pktgen_if_fops, | |
1953 | pkt_dev); | |
39df232f SH |
1954 | if (!pkt_dev->entry) |
1955 | printk(KERN_ERR "pktgen: can't move proc " | |
1956 | " entry for '%s'\n", dev->name); | |
1957 | break; | |
1958 | } | |
1959 | } | |
1da177e4 LT |
1960 | } |
1961 | ||
222f1806 LC |
1962 | static int pktgen_device_event(struct notifier_block *unused, |
1963 | unsigned long event, void *ptr) | |
1da177e4 | 1964 | { |
39df232f | 1965 | struct net_device *dev = ptr; |
1da177e4 | 1966 | |
721499e8 | 1967 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
1968 | return NOTIFY_DONE; |
1969 | ||
1da177e4 LT |
1970 | /* It is OK that we do not hold the group lock right now, |
1971 | * as we run under the RTNL lock. | |
1972 | */ | |
1973 | ||
1974 | switch (event) { | |
39df232f SH |
1975 | case NETDEV_CHANGENAME: |
1976 | pktgen_change_name(dev); | |
1da177e4 | 1977 | break; |
222f1806 | 1978 | |
1da177e4 | 1979 | case NETDEV_UNREGISTER: |
222f1806 | 1980 | pktgen_mark_device(dev->name); |
1da177e4 | 1981 | break; |
3ff50b79 | 1982 | } |
1da177e4 LT |
1983 | |
1984 | return NOTIFY_DONE; | |
1985 | } | |
1986 | ||
63adc6fb SH |
1987 | static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev, |
1988 | const char *ifname) | |
e6fce5b9 RO |
1989 | { |
1990 | char b[IFNAMSIZ+5]; | |
1991 | int i = 0; | |
1992 | ||
63adc6fb SH |
1993 | for (i = 0; ifname[i] != '@'; i++) { |
1994 | if (i == IFNAMSIZ) | |
e6fce5b9 RO |
1995 | break; |
1996 | ||
1997 | b[i] = ifname[i]; | |
1998 | } | |
1999 | b[i] = 0; | |
2000 | ||
2001 | return dev_get_by_name(&init_net, b); | |
2002 | } | |
2003 | ||
2004 | ||
1da177e4 LT |
2005 | /* Associate pktgen_dev with a device. */ |
2006 | ||
39df232f | 2007 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 2008 | { |
1da177e4 | 2009 | struct net_device *odev; |
39df232f | 2010 | int err; |
1da177e4 LT |
2011 | |
2012 | /* Clean old setups */ | |
1da177e4 LT |
2013 | if (pkt_dev->odev) { |
2014 | dev_put(pkt_dev->odev); | |
222f1806 LC |
2015 | pkt_dev->odev = NULL; |
2016 | } | |
1da177e4 | 2017 | |
e6fce5b9 | 2018 | odev = pktgen_dev_get_by_name(pkt_dev, ifname); |
1da177e4 | 2019 | if (!odev) { |
25a8b254 | 2020 | printk(KERN_ERR "pktgen: no such netdevice: \"%s\"\n", ifname); |
39df232f | 2021 | return -ENODEV; |
1da177e4 | 2022 | } |
39df232f | 2023 | |
1da177e4 | 2024 | if (odev->type != ARPHRD_ETHER) { |
25a8b254 | 2025 | printk(KERN_ERR "pktgen: not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
2026 | err = -EINVAL; |
2027 | } else if (!netif_running(odev)) { | |
25a8b254 | 2028 | printk(KERN_ERR "pktgen: device is down: \"%s\"\n", ifname); |
39df232f SH |
2029 | err = -ENETDOWN; |
2030 | } else { | |
2031 | pkt_dev->odev = odev; | |
2032 | return 0; | |
1da177e4 | 2033 | } |
1da177e4 | 2034 | |
1da177e4 | 2035 | dev_put(odev); |
39df232f | 2036 | return err; |
1da177e4 LT |
2037 | } |
2038 | ||
2039 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
2040 | * structure to have the right information to create/send packets | |
2041 | */ | |
2042 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
2043 | { | |
64c00d81 AG |
2044 | int ntxq; |
2045 | ||
222f1806 | 2046 | if (!pkt_dev->odev) { |
25a8b254 DM |
2047 | printk(KERN_ERR "pktgen: ERROR: pkt_dev->odev == NULL in " |
2048 | "setup_inject.\n"); | |
222f1806 LC |
2049 | sprintf(pkt_dev->result, |
2050 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
2051 | return; | |
2052 | } | |
2053 | ||
64c00d81 AG |
2054 | /* make sure that we don't pick a non-existing transmit queue */ |
2055 | ntxq = pkt_dev->odev->real_num_tx_queues; | |
bfdbc0ac | 2056 | |
64c00d81 AG |
2057 | if (ntxq <= pkt_dev->queue_map_min) { |
2058 | printk(KERN_WARNING "pktgen: WARNING: Requested " | |
88271660 JB |
2059 | "queue_map_min (zero-based) (%d) exceeds valid range " |
2060 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
63adc6fb | 2061 | pkt_dev->queue_map_min, (ntxq ?: 1) - 1, ntxq, |
593f63b0 | 2062 | pkt_dev->odevname); |
64c00d81 AG |
2063 | pkt_dev->queue_map_min = ntxq - 1; |
2064 | } | |
88271660 | 2065 | if (pkt_dev->queue_map_max >= ntxq) { |
64c00d81 | 2066 | printk(KERN_WARNING "pktgen: WARNING: Requested " |
88271660 JB |
2067 | "queue_map_max (zero-based) (%d) exceeds valid range " |
2068 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
63adc6fb | 2069 | pkt_dev->queue_map_max, (ntxq ?: 1) - 1, ntxq, |
593f63b0 | 2070 | pkt_dev->odevname); |
64c00d81 AG |
2071 | pkt_dev->queue_map_max = ntxq - 1; |
2072 | } | |
2073 | ||
222f1806 | 2074 | /* Default to the interface's mac if not explicitly set. */ |
1da177e4 | 2075 | |
f404e9a6 | 2076 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 2077 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 2078 | |
222f1806 | 2079 | /* Set up Dest MAC */ |
f404e9a6 | 2080 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 2081 | |
222f1806 LC |
2082 | /* Set up pkt size */ |
2083 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
2084 | ||
2085 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 2086 | /* |
4ec93edb | 2087 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
2088 | * gets exported |
2089 | */ | |
2090 | ||
2091 | #ifdef NOTNOW | |
222f1806 | 2092 | int i, set = 0, err = 1; |
1da177e4 LT |
2093 | struct inet6_dev *idev; |
2094 | ||
222f1806 LC |
2095 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
2096 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
2097 | set = 1; |
2098 | break; | |
2099 | } | |
2100 | ||
222f1806 LC |
2101 | if (!set) { |
2102 | ||
1da177e4 LT |
2103 | /* |
2104 | * Use linklevel address if unconfigured. | |
2105 | * | |
2106 | * use ipv6_get_lladdr if/when it's get exported | |
2107 | */ | |
2108 | ||
8814c4b5 | 2109 | rcu_read_lock(); |
63adc6fb SH |
2110 | idev = __in6_dev_get(pkt_dev->odev); |
2111 | if (idev) { | |
1da177e4 LT |
2112 | struct inet6_ifaddr *ifp; |
2113 | ||
2114 | read_lock_bh(&idev->lock); | |
222f1806 LC |
2115 | for (ifp = idev->addr_list; ifp; |
2116 | ifp = ifp->if_next) { | |
f64f9e71 JP |
2117 | if (ifp->scope == IFA_LINK && |
2118 | !(ifp->flags & IFA_F_TENTATIVE)) { | |
222f1806 LC |
2119 | ipv6_addr_copy(&pkt_dev-> |
2120 | cur_in6_saddr, | |
2121 | &ifp->addr); | |
1da177e4 LT |
2122 | err = 0; |
2123 | break; | |
2124 | } | |
2125 | } | |
2126 | read_unlock_bh(&idev->lock); | |
2127 | } | |
8814c4b5 | 2128 | rcu_read_unlock(); |
222f1806 | 2129 | if (err) |
25a8b254 DM |
2130 | printk(KERN_ERR "pktgen: ERROR: IPv6 link " |
2131 | "address not availble.\n"); | |
1da177e4 LT |
2132 | } |
2133 | #endif | |
222f1806 | 2134 | } else { |
1da177e4 LT |
2135 | pkt_dev->saddr_min = 0; |
2136 | pkt_dev->saddr_max = 0; | |
2137 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2138 | |
2139 | struct in_device *in_dev; | |
1da177e4 LT |
2140 | |
2141 | rcu_read_lock(); | |
e5ed6399 | 2142 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2143 | if (in_dev) { |
2144 | if (in_dev->ifa_list) { | |
222f1806 LC |
2145 | pkt_dev->saddr_min = |
2146 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2147 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2148 | } | |
1da177e4 LT |
2149 | } |
2150 | rcu_read_unlock(); | |
222f1806 | 2151 | } else { |
1da177e4 LT |
2152 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2153 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2154 | } | |
2155 | ||
2156 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2157 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2158 | } | |
222f1806 LC |
2159 | /* Initialize current values. */ |
2160 | pkt_dev->cur_dst_mac_offset = 0; | |
2161 | pkt_dev->cur_src_mac_offset = 0; | |
2162 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2163 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2164 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2165 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2166 | pkt_dev->nflows = 0; |
2167 | } | |
2168 | ||
fd29cf72 SH |
2169 | |
2170 | static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until) | |
2171 | { | |
ef87979c | 2172 | ktime_t start_time, end_time; |
417bc4b8 | 2173 | s64 remaining; |
2bc481cf SH |
2174 | struct hrtimer_sleeper t; |
2175 | ||
2176 | hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); | |
2177 | hrtimer_set_expires(&t.timer, spin_until); | |
2178 | ||
43d28b65 | 2179 | remaining = ktime_to_ns(hrtimer_expires_remaining(&t.timer)); |
417bc4b8 ED |
2180 | if (remaining <= 0) { |
2181 | pkt_dev->next_tx = ktime_add_ns(spin_until, pkt_dev->delay); | |
2bc481cf | 2182 | return; |
417bc4b8 | 2183 | } |
2bc481cf | 2184 | |
ef87979c | 2185 | start_time = ktime_now(); |
43d28b65 DT |
2186 | if (remaining < 100000) |
2187 | ndelay(remaining); /* really small just spin */ | |
2bc481cf SH |
2188 | else { |
2189 | /* see do_nanosleep */ | |
2190 | hrtimer_init_sleeper(&t, current); | |
2191 | do { | |
2192 | set_current_state(TASK_INTERRUPTIBLE); | |
2193 | hrtimer_start_expires(&t.timer, HRTIMER_MODE_ABS); | |
2194 | if (!hrtimer_active(&t.timer)) | |
2195 | t.task = NULL; | |
2196 | ||
2197 | if (likely(t.task)) | |
1da177e4 | 2198 | schedule(); |
1da177e4 | 2199 | |
2bc481cf SH |
2200 | hrtimer_cancel(&t.timer); |
2201 | } while (t.task && pkt_dev->running && !signal_pending(current)); | |
2202 | __set_current_state(TASK_RUNNING); | |
1da177e4 | 2203 | } |
ef87979c SH |
2204 | end_time = ktime_now(); |
2205 | ||
2206 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(end_time, start_time)); | |
07a0f0f0 | 2207 | pkt_dev->next_tx = ktime_add_ns(spin_until, pkt_dev->delay); |
1da177e4 LT |
2208 | } |
2209 | ||
16dab72f JHS |
2210 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2211 | { | |
a553e4a6 | 2212 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2213 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2214 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2215 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2216 | } | |
2217 | ||
648fda74 | 2218 | static inline int f_seen(const struct pktgen_dev *pkt_dev, int flow) |
007a531b | 2219 | { |
648fda74 | 2220 | return !!(pkt_dev->flows[flow].flags & F_INIT); |
007a531b JHS |
2221 | } |
2222 | ||
2223 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2224 | { | |
2225 | int flow = pkt_dev->curfl; | |
2226 | ||
2227 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2228 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2229 | /* reset time */ | |
2230 | pkt_dev->flows[flow].count = 0; | |
1211a645 | 2231 | pkt_dev->flows[flow].flags = 0; |
007a531b JHS |
2232 | pkt_dev->curfl += 1; |
2233 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2234 | pkt_dev->curfl = 0; /*reset */ | |
2235 | } | |
2236 | } else { | |
2237 | flow = random32() % pkt_dev->cflows; | |
1211a645 | 2238 | pkt_dev->curfl = flow; |
007a531b | 2239 | |
1211a645 | 2240 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) { |
007a531b | 2241 | pkt_dev->flows[flow].count = 0; |
1211a645 RO |
2242 | pkt_dev->flows[flow].flags = 0; |
2243 | } | |
007a531b JHS |
2244 | } |
2245 | ||
2246 | return pkt_dev->curfl; | |
2247 | } | |
2248 | ||
a553e4a6 JHS |
2249 | |
2250 | #ifdef CONFIG_XFRM | |
2251 | /* If there was already an IPSEC SA, we keep it as is, else | |
2252 | * we go look for it ... | |
2253 | */ | |
bd55775c | 2254 | #define DUMMY_MARK 0 |
fea1ab0f | 2255 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2256 | { |
2257 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2258 | if (!x) { | |
2259 | /*slow path: we dont already have xfrm_state*/ | |
bd55775c | 2260 | x = xfrm_stateonly_find(&init_net, DUMMY_MARK, |
5447c5e4 | 2261 | (xfrm_address_t *)&pkt_dev->cur_daddr, |
a553e4a6 JHS |
2262 | (xfrm_address_t *)&pkt_dev->cur_saddr, |
2263 | AF_INET, | |
2264 | pkt_dev->ipsmode, | |
2265 | pkt_dev->ipsproto, 0); | |
2266 | if (x) { | |
2267 | pkt_dev->flows[flow].x = x; | |
2268 | set_pkt_overhead(pkt_dev); | |
63adc6fb | 2269 | pkt_dev->pkt_overhead += x->props.header_len; |
a553e4a6 JHS |
2270 | } |
2271 | ||
2272 | } | |
2273 | } | |
2274 | #endif | |
fd2ea0a7 DM |
2275 | static void set_cur_queue_map(struct pktgen_dev *pkt_dev) |
2276 | { | |
e6fce5b9 RO |
2277 | |
2278 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) | |
2279 | pkt_dev->cur_queue_map = smp_processor_id(); | |
2280 | ||
896a7cf8 | 2281 | else if (pkt_dev->queue_map_min <= pkt_dev->queue_map_max) { |
fd2ea0a7 DM |
2282 | __u16 t; |
2283 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2284 | t = random32() % | |
2285 | (pkt_dev->queue_map_max - | |
2286 | pkt_dev->queue_map_min + 1) | |
2287 | + pkt_dev->queue_map_min; | |
2288 | } else { | |
2289 | t = pkt_dev->cur_queue_map + 1; | |
2290 | if (t > pkt_dev->queue_map_max) | |
2291 | t = pkt_dev->queue_map_min; | |
2292 | } | |
2293 | pkt_dev->cur_queue_map = t; | |
2294 | } | |
bfdbc0ac | 2295 | pkt_dev->cur_queue_map = pkt_dev->cur_queue_map % pkt_dev->odev->real_num_tx_queues; |
fd2ea0a7 DM |
2296 | } |
2297 | ||
1da177e4 LT |
2298 | /* Increment/randomize headers according to flags and current values |
2299 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2300 | */ | |
222f1806 LC |
2301 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2302 | { | |
2303 | __u32 imn; | |
2304 | __u32 imx; | |
2305 | int flow = 0; | |
1da177e4 | 2306 | |
007a531b JHS |
2307 | if (pkt_dev->cflows) |
2308 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2309 | |
2310 | /* Deal with source MAC */ | |
222f1806 LC |
2311 | if (pkt_dev->src_mac_count > 1) { |
2312 | __u32 mc; | |
2313 | __u32 tmp; | |
2314 | ||
2315 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2316 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2317 | else { |
2318 | mc = pkt_dev->cur_src_mac_offset++; | |
ff2a79a5 | 2319 | if (pkt_dev->cur_src_mac_offset >= |
222f1806 LC |
2320 | pkt_dev->src_mac_count) |
2321 | pkt_dev->cur_src_mac_offset = 0; | |
2322 | } | |
2323 | ||
2324 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2325 | pkt_dev->hh[11] = tmp; | |
2326 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2327 | pkt_dev->hh[10] = tmp; | |
2328 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2329 | pkt_dev->hh[9] = tmp; | |
2330 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2331 | pkt_dev->hh[8] = tmp; | |
2332 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2333 | pkt_dev->hh[7] = tmp; | |
2334 | } | |
2335 | ||
2336 | /* Deal with Destination MAC */ | |
2337 | if (pkt_dev->dst_mac_count > 1) { | |
2338 | __u32 mc; | |
2339 | __u32 tmp; | |
2340 | ||
2341 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2342 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2343 | |
2344 | else { | |
2345 | mc = pkt_dev->cur_dst_mac_offset++; | |
ff2a79a5 | 2346 | if (pkt_dev->cur_dst_mac_offset >= |
222f1806 LC |
2347 | pkt_dev->dst_mac_count) { |
2348 | pkt_dev->cur_dst_mac_offset = 0; | |
2349 | } | |
2350 | } | |
2351 | ||
2352 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2353 | pkt_dev->hh[5] = tmp; | |
2354 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2355 | pkt_dev->hh[4] = tmp; | |
2356 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2357 | pkt_dev->hh[3] = tmp; | |
2358 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2359 | pkt_dev->hh[2] = tmp; | |
2360 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2361 | pkt_dev->hh[1] = tmp; | |
2362 | } | |
2363 | ||
ca6549af SW |
2364 | if (pkt_dev->flags & F_MPLS_RND) { |
2365 | unsigned i; | |
e71a4783 | 2366 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2367 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2368 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2369 | ((__force __be32)random32() & |
ca6549af SW |
2370 | htonl(0x000fffff)); |
2371 | } | |
2372 | ||
34954ddc | 2373 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2374 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2375 | } |
2376 | ||
2377 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2378 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2379 | } |
2380 | ||
222f1806 LC |
2381 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2382 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2383 | pkt_dev->cur_udp_src = random32() % |
2384 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2385 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2386 | |
2387 | else { | |
1da177e4 LT |
2388 | pkt_dev->cur_udp_src++; |
2389 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2390 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2391 | } |
2392 | } | |
2393 | ||
2394 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2395 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2396 | pkt_dev->cur_udp_dst = random32() % |
2397 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2398 | + pkt_dev->udp_dst_min; | |
222f1806 | 2399 | } else { |
1da177e4 | 2400 | pkt_dev->cur_udp_dst++; |
222f1806 | 2401 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2402 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2403 | } |
2404 | } | |
1da177e4 LT |
2405 | |
2406 | if (!(pkt_dev->flags & F_IPV6)) { | |
2407 | ||
63adc6fb SH |
2408 | imn = ntohl(pkt_dev->saddr_min); |
2409 | imx = ntohl(pkt_dev->saddr_max); | |
2410 | if (imn < imx) { | |
1da177e4 | 2411 | __u32 t; |
222f1806 | 2412 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2413 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2414 | else { |
2415 | t = ntohl(pkt_dev->cur_saddr); | |
2416 | t++; | |
63adc6fb | 2417 | if (t > imx) |
1da177e4 | 2418 | t = imn; |
63adc6fb | 2419 | |
1da177e4 LT |
2420 | } |
2421 | pkt_dev->cur_saddr = htonl(t); | |
2422 | } | |
222f1806 | 2423 | |
007a531b | 2424 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2425 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2426 | } else { | |
252e3346 AV |
2427 | imn = ntohl(pkt_dev->daddr_min); |
2428 | imx = ntohl(pkt_dev->daddr_max); | |
2429 | if (imn < imx) { | |
1da177e4 | 2430 | __u32 t; |
252e3346 | 2431 | __be32 s; |
1da177e4 LT |
2432 | if (pkt_dev->flags & F_IPDST_RND) { |
2433 | ||
5fa6fc76 | 2434 | t = random32() % (imx - imn) + imn; |
252e3346 | 2435 | s = htonl(t); |
1da177e4 | 2436 | |
21cf2253 JP |
2437 | while (ipv4_is_loopback(s) || |
2438 | ipv4_is_multicast(s) || | |
1e637c74 | 2439 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2440 | ipv4_is_zeronet(s) || |
2441 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2442 | t = random32() % (imx - imn) + imn; |
252e3346 | 2443 | s = htonl(t); |
1da177e4 | 2444 | } |
252e3346 AV |
2445 | pkt_dev->cur_daddr = s; |
2446 | } else { | |
1da177e4 LT |
2447 | t = ntohl(pkt_dev->cur_daddr); |
2448 | t++; | |
2449 | if (t > imx) { | |
2450 | t = imn; | |
2451 | } | |
2452 | pkt_dev->cur_daddr = htonl(t); | |
2453 | } | |
2454 | } | |
222f1806 | 2455 | if (pkt_dev->cflows) { |
007a531b | 2456 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2457 | pkt_dev->flows[flow].cur_daddr = |
2458 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2459 | #ifdef CONFIG_XFRM |
2460 | if (pkt_dev->flags & F_IPSEC_ON) | |
2461 | get_ipsec_sa(pkt_dev, flow); | |
2462 | #endif | |
1da177e4 LT |
2463 | pkt_dev->nflows++; |
2464 | } | |
2465 | } | |
222f1806 LC |
2466 | } else { /* IPV6 * */ |
2467 | ||
2468 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2469 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2470 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2471 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2472 | else { |
2473 | int i; | |
2474 | ||
2475 | /* Only random destinations yet */ | |
2476 | ||
222f1806 | 2477 | for (i = 0; i < 4; i++) { |
1da177e4 | 2478 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2479 | (((__force __be32)random32() | |
222f1806 LC |
2480 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2481 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2482 | } |
222f1806 | 2483 | } |
1da177e4 LT |
2484 | } |
2485 | ||
222f1806 LC |
2486 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2487 | __u32 t; | |
2488 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2489 | t = random32() % |
2490 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2491 | + pkt_dev->min_pkt_size; | |
222f1806 | 2492 | } else { |
1da177e4 | 2493 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2494 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2495 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2496 | } |
2497 | pkt_dev->cur_pkt_size = t; | |
2498 | } | |
1da177e4 | 2499 | |
fd2ea0a7 | 2500 | set_cur_queue_map(pkt_dev); |
45b270f8 | 2501 | |
1da177e4 LT |
2502 | pkt_dev->flows[flow].count++; |
2503 | } | |
2504 | ||
a553e4a6 JHS |
2505 | |
2506 | #ifdef CONFIG_XFRM | |
2507 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2508 | { | |
2509 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2510 | int err = 0; | |
2511 | struct iphdr *iph; | |
2512 | ||
2513 | if (!x) | |
2514 | return 0; | |
2515 | /* XXX: we dont support tunnel mode for now until | |
2516 | * we resolve the dst issue */ | |
2517 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2518 | return 0; | |
2519 | ||
2520 | spin_lock(&x->lock); | |
2521 | iph = ip_hdr(skb); | |
2522 | ||
13996378 | 2523 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2524 | if (err) |
2525 | goto error; | |
2526 | err = x->type->output(x, skb); | |
2527 | if (err) | |
2528 | goto error; | |
2529 | ||
63adc6fb | 2530 | x->curlft.bytes += skb->len; |
a553e4a6 | 2531 | x->curlft.packets++; |
a553e4a6 JHS |
2532 | error: |
2533 | spin_unlock(&x->lock); | |
2534 | return err; | |
2535 | } | |
2536 | ||
475ac1e4 | 2537 | static void free_SAs(struct pktgen_dev *pkt_dev) |
a553e4a6 JHS |
2538 | { |
2539 | if (pkt_dev->cflows) { | |
2540 | /* let go of the SAs if we have them */ | |
2541 | int i = 0; | |
5b5f792a | 2542 | for (; i < pkt_dev->cflows; i++) { |
a553e4a6 JHS |
2543 | struct xfrm_state *x = pkt_dev->flows[i].x; |
2544 | if (x) { | |
2545 | xfrm_state_put(x); | |
2546 | pkt_dev->flows[i].x = NULL; | |
2547 | } | |
2548 | } | |
2549 | } | |
2550 | } | |
2551 | ||
475ac1e4 | 2552 | static int process_ipsec(struct pktgen_dev *pkt_dev, |
a553e4a6 JHS |
2553 | struct sk_buff *skb, __be16 protocol) |
2554 | { | |
2555 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2556 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2557 | int nhead = 0; | |
2558 | if (x) { | |
2559 | int ret; | |
2560 | __u8 *eth; | |
2561 | nhead = x->props.header_len - skb_headroom(skb); | |
63adc6fb | 2562 | if (nhead > 0) { |
a553e4a6 JHS |
2563 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); |
2564 | if (ret < 0) { | |
25a8b254 | 2565 | printk(KERN_ERR "Error expanding " |
63adc6fb | 2566 | "ipsec packet %d\n", ret); |
b4bb4ac8 | 2567 | goto err; |
a553e4a6 JHS |
2568 | } |
2569 | } | |
2570 | ||
2571 | /* ipsec is not expecting ll header */ | |
2572 | skb_pull(skb, ETH_HLEN); | |
2573 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2574 | if (ret) { | |
25a8b254 | 2575 | printk(KERN_ERR "Error creating ipsec " |
63adc6fb | 2576 | "packet %d\n", ret); |
b4bb4ac8 | 2577 | goto err; |
a553e4a6 JHS |
2578 | } |
2579 | /* restore ll */ | |
2580 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2581 | memcpy(eth, pkt_dev->hh, 12); | |
63adc6fb | 2582 | *(u16 *) ð[12] = protocol; |
a553e4a6 JHS |
2583 | } |
2584 | } | |
2585 | return 1; | |
b4bb4ac8 IJ |
2586 | err: |
2587 | kfree_skb(skb); | |
2588 | return 0; | |
a553e4a6 JHS |
2589 | } |
2590 | #endif | |
2591 | ||
ca6549af SW |
2592 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2593 | { | |
2594 | unsigned i; | |
63adc6fb | 2595 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af | 2596 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
63adc6fb | 2597 | |
ca6549af SW |
2598 | mpls--; |
2599 | *mpls |= MPLS_STACK_BOTTOM; | |
2600 | } | |
2601 | ||
0f37c605 AV |
2602 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2603 | unsigned int prio) | |
2604 | { | |
2605 | return htons(id | (cfi << 12) | (prio << 13)); | |
2606 | } | |
2607 | ||
222f1806 LC |
2608 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2609 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2610 | { |
2611 | struct sk_buff *skb = NULL; | |
2612 | __u8 *eth; | |
2613 | struct udphdr *udph; | |
2614 | int datalen, iplen; | |
2615 | struct iphdr *iph; | |
222f1806 | 2616 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2617 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2618 | __be32 *mpls; |
34954ddc FF |
2619 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2620 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2621 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2622 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2623 | u16 queue_map; |
ca6549af SW |
2624 | |
2625 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2626 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2627 | |
34954ddc | 2628 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2629 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2630 | |
64053bee RO |
2631 | /* Update any of the values, used when we're incrementing various |
2632 | * fields. | |
2633 | */ | |
fd2ea0a7 | 2634 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2635 | mod_cur_headers(pkt_dev); |
2636 | ||
7ac5459e | 2637 | datalen = (odev->hard_header_len + 16) & ~0xf; |
e99b99b4 RO |
2638 | |
2639 | if (pkt_dev->flags & F_NODE) { | |
2640 | int node; | |
2641 | ||
2642 | if (pkt_dev->node >= 0) | |
2643 | node = pkt_dev->node; | |
2644 | else | |
2645 | node = numa_node_id(); | |
2646 | ||
2647 | skb = __alloc_skb(NET_SKB_PAD + pkt_dev->cur_pkt_size + 64 | |
2648 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT, 0, node); | |
2649 | if (likely(skb)) { | |
2650 | skb_reserve(skb, NET_SKB_PAD); | |
2651 | skb->dev = odev; | |
2652 | } | |
2653 | } | |
2654 | else | |
2655 | skb = __netdev_alloc_skb(odev, | |
2656 | pkt_dev->cur_pkt_size + 64 | |
2657 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
2658 | ||
1da177e4 LT |
2659 | if (!skb) { |
2660 | sprintf(pkt_dev->result, "No memory"); | |
2661 | return NULL; | |
2662 | } | |
2663 | ||
7ac5459e | 2664 | skb_reserve(skb, datalen); |
1da177e4 LT |
2665 | |
2666 | /* Reserve for ethernet and IP header */ | |
2667 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2668 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2669 | if (pkt_dev->nr_labels) | |
2670 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2671 | |
2672 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2673 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2674 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2675 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2676 | pkt_dev->svlan_cfi, | |
2677 | pkt_dev->svlan_p); | |
34954ddc | 2678 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2679 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2680 | } |
2681 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2682 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2683 | pkt_dev->vlan_cfi, | |
2684 | pkt_dev->vlan_p); | |
34954ddc | 2685 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2686 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2687 | } |
2688 | ||
27a884dc | 2689 | skb->network_header = skb->tail; |
b0e380b1 | 2690 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2691 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2692 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2693 | iph = ip_hdr(skb); |
2694 | udph = udp_hdr(skb); | |
1da177e4 | 2695 | |
1da177e4 | 2696 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2697 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2698 | |
ca6549af SW |
2699 | /* Eth + IPh + UDPh + mpls */ |
2700 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2701 | pkt_dev->pkt_overhead; |
222f1806 | 2702 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2703 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2704 | |
1da177e4 LT |
2705 | udph->source = htons(pkt_dev->cur_udp_src); |
2706 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2707 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2708 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2709 | |
2710 | iph->ihl = 5; | |
2711 | iph->version = 4; | |
2712 | iph->ttl = 32; | |
1ca7768c | 2713 | iph->tos = pkt_dev->tos; |
222f1806 | 2714 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2715 | iph->saddr = pkt_dev->cur_saddr; |
2716 | iph->daddr = pkt_dev->cur_daddr; | |
66ed1e5e ED |
2717 | iph->id = htons(pkt_dev->ip_id); |
2718 | pkt_dev->ip_id++; | |
1da177e4 LT |
2719 | iph->frag_off = 0; |
2720 | iplen = 20 + 8 + datalen; | |
2721 | iph->tot_len = htons(iplen); | |
2722 | iph->check = 0; | |
222f1806 | 2723 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2724 | skb->protocol = protocol; |
b0e380b1 | 2725 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2726 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2727 | skb->dev = odev; |
2728 | skb->pkt_type = PACKET_HOST; | |
2729 | ||
66ed1e5e | 2730 | if (pkt_dev->nfrags <= 0) { |
222f1806 | 2731 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); |
66ed1e5e ED |
2732 | memset(pgh + 1, 0, datalen - sizeof(struct pktgen_hdr)); |
2733 | } else { | |
1da177e4 | 2734 | int frags = pkt_dev->nfrags; |
66ed1e5e | 2735 | int i, len; |
1da177e4 | 2736 | |
222f1806 LC |
2737 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2738 | ||
1da177e4 LT |
2739 | if (frags > MAX_SKB_FRAGS) |
2740 | frags = MAX_SKB_FRAGS; | |
222f1806 | 2741 | if (datalen > frags * PAGE_SIZE) { |
66ed1e5e ED |
2742 | len = datalen - frags * PAGE_SIZE; |
2743 | memset(skb_put(skb, len), 0, len); | |
222f1806 | 2744 | datalen = frags * PAGE_SIZE; |
1da177e4 LT |
2745 | } |
2746 | ||
2747 | i = 0; | |
2748 | while (datalen > 0) { | |
66ed1e5e | 2749 | struct page *page = alloc_pages(GFP_KERNEL | __GFP_ZERO, 0); |
1da177e4 LT |
2750 | skb_shinfo(skb)->frags[i].page = page; |
2751 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2752 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2753 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2754 | datalen -= skb_shinfo(skb)->frags[i].size; |
2755 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2756 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2757 | i++; | |
2758 | skb_shinfo(skb)->nr_frags = i; | |
2759 | } | |
2760 | ||
2761 | while (i < frags) { | |
2762 | int rem; | |
2763 | ||
2764 | if (i == 0) | |
2765 | break; | |
2766 | ||
2767 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2768 | if (rem == 0) | |
2769 | break; | |
2770 | ||
2771 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2772 | ||
222f1806 LC |
2773 | skb_shinfo(skb)->frags[i] = |
2774 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2775 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2776 | skb_shinfo(skb)->frags[i].page = |
2777 | skb_shinfo(skb)->frags[i - 1].page; | |
2778 | skb_shinfo(skb)->frags[i].page_offset += | |
2779 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2780 | skb_shinfo(skb)->frags[i].size = rem; |
2781 | i++; | |
2782 | skb_shinfo(skb)->nr_frags = i; | |
2783 | } | |
2784 | } | |
2785 | ||
63adc6fb SH |
2786 | /* Stamp the time, and sequence number, |
2787 | * convert them to network byte order | |
2788 | */ | |
222f1806 LC |
2789 | if (pgh) { |
2790 | struct timeval timestamp; | |
2791 | ||
2792 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2793 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2794 | ||
2795 | do_gettimeofday(×tamp); | |
2796 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2797 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2798 | } | |
1da177e4 | 2799 | |
a553e4a6 JHS |
2800 | #ifdef CONFIG_XFRM |
2801 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2802 | return NULL; | |
2803 | #endif | |
2804 | ||
1da177e4 LT |
2805 | return skb; |
2806 | } | |
2807 | ||
2808 | /* | |
4ec93edb | 2809 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2810 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2811 | * | |
4ec93edb | 2812 | * Slightly modified for kernel. |
1da177e4 LT |
2813 | * Should be candidate for net/ipv4/utils.c |
2814 | * --ro | |
2815 | */ | |
2816 | ||
222f1806 | 2817 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2818 | { |
2819 | unsigned int i; | |
222f1806 | 2820 | unsigned int len = 0; |
1da177e4 LT |
2821 | unsigned long u; |
2822 | char suffix[16]; | |
222f1806 LC |
2823 | unsigned int prefixlen = 0; |
2824 | unsigned int suffixlen = 0; | |
252e3346 | 2825 | __be32 tmp; |
cfcabdcc | 2826 | char *pos; |
1da177e4 | 2827 | |
222f1806 LC |
2828 | for (i = 0; i < 16; i++) |
2829 | ip[i] = 0; | |
1da177e4 LT |
2830 | |
2831 | for (;;) { | |
2832 | if (*s == ':') { | |
2833 | len++; | |
222f1806 LC |
2834 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2835 | s += 2; | |
1da177e4 LT |
2836 | len++; |
2837 | break; | |
2838 | } | |
2839 | s++; | |
2840 | } | |
1da177e4 | 2841 | |
cfcabdcc SH |
2842 | u = simple_strtoul(s, &pos, 16); |
2843 | i = pos - s; | |
222f1806 LC |
2844 | if (!i) |
2845 | return 0; | |
2846 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2847 | |
2848 | /* the last 4 bytes may be written as IPv4 address */ | |
2849 | ||
2850 | tmp = in_aton(s); | |
222f1806 LC |
2851 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2852 | return i + len; | |
1da177e4 LT |
2853 | } |
2854 | ip[prefixlen++] = (u >> 8); | |
2855 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2856 | s += i; |
2857 | len += i; | |
2858 | if (prefixlen == 16) | |
1da177e4 LT |
2859 | return len; |
2860 | } | |
2861 | ||
2862 | /* part 2, after "::" */ | |
2863 | for (;;) { | |
2864 | if (*s == ':') { | |
222f1806 | 2865 | if (suffixlen == 0) |
1da177e4 LT |
2866 | break; |
2867 | s++; | |
2868 | len++; | |
222f1806 | 2869 | } else if (suffixlen != 0) |
1da177e4 | 2870 | break; |
cfcabdcc SH |
2871 | |
2872 | u = simple_strtol(s, &pos, 16); | |
2873 | i = pos - s; | |
1da177e4 | 2874 | if (!i) { |
222f1806 LC |
2875 | if (*s) |
2876 | len--; | |
1da177e4 LT |
2877 | break; |
2878 | } | |
222f1806 | 2879 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2880 | tmp = in_aton(s); |
222f1806 LC |
2881 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2882 | sizeof(tmp)); | |
2883 | suffixlen += 4; | |
2884 | len += strlen(s); | |
1da177e4 LT |
2885 | break; |
2886 | } | |
2887 | suffix[suffixlen++] = (u >> 8); | |
2888 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2889 | s += i; |
2890 | len += i; | |
2891 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2892 | break; |
2893 | } | |
222f1806 LC |
2894 | for (i = 0; i < suffixlen; i++) |
2895 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2896 | return len; |
2897 | } | |
2898 | ||
222f1806 LC |
2899 | static char tohex(char hexdigit) |
2900 | { | |
2901 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2902 | } |
2903 | ||
222f1806 LC |
2904 | static int fmt_xlong(char *s, unsigned int i) |
2905 | { | |
2906 | char *bak = s; | |
2907 | *s = tohex((i >> 12) & 0xf); | |
2908 | if (s != bak || *s != '0') | |
2909 | ++s; | |
2910 | *s = tohex((i >> 8) & 0xf); | |
2911 | if (s != bak || *s != '0') | |
2912 | ++s; | |
2913 | *s = tohex((i >> 4) & 0xf); | |
2914 | if (s != bak || *s != '0') | |
2915 | ++s; | |
2916 | *s = tohex(i & 0xf); | |
2917 | return s - bak + 1; | |
1da177e4 LT |
2918 | } |
2919 | ||
222f1806 LC |
2920 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2921 | { | |
1da177e4 LT |
2922 | unsigned int len; |
2923 | unsigned int i; | |
2924 | unsigned int temp; | |
2925 | unsigned int compressing; | |
2926 | int j; | |
2927 | ||
222f1806 LC |
2928 | len = 0; |
2929 | compressing = 0; | |
2930 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2931 | |
2932 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2933 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2934 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2935 | temp = strlen(s); | |
2936 | return len + temp; | |
1da177e4 LT |
2937 | } |
2938 | #endif | |
222f1806 LC |
2939 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2940 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2941 | if (temp == 0) { |
2942 | if (!compressing) { | |
222f1806 LC |
2943 | compressing = 1; |
2944 | if (j == 0) { | |
2945 | *s++ = ':'; | |
2946 | ++len; | |
1da177e4 LT |
2947 | } |
2948 | } | |
2949 | } else { | |
2950 | if (compressing) { | |
222f1806 LC |
2951 | compressing = 0; |
2952 | *s++ = ':'; | |
2953 | ++len; | |
1da177e4 | 2954 | } |
222f1806 LC |
2955 | i = fmt_xlong(s, temp); |
2956 | len += i; | |
2957 | s += i; | |
2958 | if (j < 14) { | |
1da177e4 LT |
2959 | *s++ = ':'; |
2960 | ++len; | |
2961 | } | |
2962 | } | |
2963 | } | |
2964 | if (compressing) { | |
222f1806 LC |
2965 | *s++ = ':'; |
2966 | ++len; | |
1da177e4 | 2967 | } |
222f1806 | 2968 | *s = 0; |
1da177e4 LT |
2969 | return len; |
2970 | } | |
2971 | ||
222f1806 LC |
2972 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2973 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2974 | { |
2975 | struct sk_buff *skb = NULL; | |
2976 | __u8 *eth; | |
2977 | struct udphdr *udph; | |
2978 | int datalen; | |
2979 | struct ipv6hdr *iph; | |
222f1806 | 2980 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2981 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2982 | __be32 *mpls; |
34954ddc FF |
2983 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2984 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2985 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2986 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2987 | u16 queue_map; |
ca6549af SW |
2988 | |
2989 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2990 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2991 | |
34954ddc | 2992 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2993 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2994 | |
64053bee RO |
2995 | /* Update any of the values, used when we're incrementing various |
2996 | * fields. | |
2997 | */ | |
fd2ea0a7 | 2998 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2999 | mod_cur_headers(pkt_dev); |
3000 | ||
e470757d SH |
3001 | skb = __netdev_alloc_skb(odev, |
3002 | pkt_dev->cur_pkt_size + 64 | |
3003 | + 16 + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
3004 | if (!skb) { |
3005 | sprintf(pkt_dev->result, "No memory"); | |
3006 | return NULL; | |
3007 | } | |
3008 | ||
3009 | skb_reserve(skb, 16); | |
3010 | ||
3011 | /* Reserve for ethernet and IP header */ | |
3012 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
3013 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
3014 | if (pkt_dev->nr_labels) | |
3015 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
3016 | |
3017 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 3018 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 3019 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
3020 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
3021 | pkt_dev->svlan_cfi, | |
3022 | pkt_dev->svlan_p); | |
34954ddc | 3023 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 3024 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
3025 | } |
3026 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
3027 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
3028 | pkt_dev->vlan_cfi, | |
3029 | pkt_dev->vlan_p); | |
34954ddc | 3030 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 3031 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
3032 | } |
3033 | ||
27a884dc | 3034 | skb->network_header = skb->tail; |
b0e380b1 | 3035 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 3036 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 3037 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
3038 | iph = ipv6_hdr(skb); |
3039 | udph = udp_hdr(skb); | |
1da177e4 | 3040 | |
1da177e4 | 3041 | memcpy(eth, pkt_dev->hh, 12); |
63adc6fb | 3042 | *(__be16 *) ð[12] = protocol; |
64053bee | 3043 | |
ca6549af SW |
3044 | /* Eth + IPh + UDPh + mpls */ |
3045 | datalen = pkt_dev->cur_pkt_size - 14 - | |
3046 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 3047 | pkt_dev->pkt_overhead; |
1da177e4 | 3048 | |
222f1806 | 3049 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
3050 | datalen = sizeof(struct pktgen_hdr); |
3051 | if (net_ratelimit()) | |
222f1806 LC |
3052 | printk(KERN_INFO "pktgen: increased datalen to %d\n", |
3053 | datalen); | |
1da177e4 LT |
3054 | } |
3055 | ||
3056 | udph->source = htons(pkt_dev->cur_udp_src); | |
3057 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
3058 | udph->len = htons(datalen + sizeof(struct udphdr)); |
3059 | udph->check = 0; /* No checksum */ | |
1da177e4 | 3060 | |
d5f1ce9a | 3061 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 3062 | |
1ca7768c FF |
3063 | if (pkt_dev->traffic_class) { |
3064 | /* Version + traffic class + flow (0) */ | |
252e3346 | 3065 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
3066 | } |
3067 | ||
1da177e4 LT |
3068 | iph->hop_limit = 32; |
3069 | ||
3070 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
3071 | iph->nexthdr = IPPROTO_UDP; | |
3072 | ||
3073 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
3074 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
3075 | ||
b0e380b1 | 3076 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 3077 | pkt_dev->pkt_overhead); |
ca6549af | 3078 | skb->protocol = protocol; |
1da177e4 LT |
3079 | skb->dev = odev; |
3080 | skb->pkt_type = PACKET_HOST; | |
3081 | ||
222f1806 LC |
3082 | if (pkt_dev->nfrags <= 0) |
3083 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
3084 | else { |
3085 | int frags = pkt_dev->nfrags; | |
3086 | int i; | |
3087 | ||
222f1806 LC |
3088 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
3089 | ||
1da177e4 LT |
3090 | if (frags > MAX_SKB_FRAGS) |
3091 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
3092 | if (datalen > frags * PAGE_SIZE) { |
3093 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
3094 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
3095 | } |
3096 | ||
3097 | i = 0; | |
3098 | while (datalen > 0) { | |
3099 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
3100 | skb_shinfo(skb)->frags[i].page = page; | |
3101 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
3102 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 3103 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
3104 | datalen -= skb_shinfo(skb)->frags[i].size; |
3105 | skb->len += skb_shinfo(skb)->frags[i].size; | |
3106 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
3107 | i++; | |
3108 | skb_shinfo(skb)->nr_frags = i; | |
3109 | } | |
3110 | ||
3111 | while (i < frags) { | |
3112 | int rem; | |
3113 | ||
3114 | if (i == 0) | |
3115 | break; | |
3116 | ||
3117 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
3118 | if (rem == 0) | |
3119 | break; | |
3120 | ||
3121 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
3122 | ||
222f1806 LC |
3123 | skb_shinfo(skb)->frags[i] = |
3124 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 3125 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
3126 | skb_shinfo(skb)->frags[i].page = |
3127 | skb_shinfo(skb)->frags[i - 1].page; | |
3128 | skb_shinfo(skb)->frags[i].page_offset += | |
3129 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
3130 | skb_shinfo(skb)->frags[i].size = rem; |
3131 | i++; | |
3132 | skb_shinfo(skb)->nr_frags = i; | |
3133 | } | |
3134 | } | |
3135 | ||
63adc6fb SH |
3136 | /* Stamp the time, and sequence number, |
3137 | * convert them to network byte order | |
3138 | * should we update cloned packets too ? | |
3139 | */ | |
222f1806 LC |
3140 | if (pgh) { |
3141 | struct timeval timestamp; | |
3142 | ||
3143 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
3144 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
3145 | ||
3146 | do_gettimeofday(×tamp); | |
3147 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
3148 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
3149 | } | |
34954ddc | 3150 | /* pkt_dev->seq_num++; FF: you really mean this? */ |
222f1806 | 3151 | |
1da177e4 LT |
3152 | return skb; |
3153 | } | |
3154 | ||
475ac1e4 SH |
3155 | static struct sk_buff *fill_packet(struct net_device *odev, |
3156 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3157 | { |
222f1806 | 3158 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
3159 | return fill_packet_ipv6(odev, pkt_dev); |
3160 | else | |
3161 | return fill_packet_ipv4(odev, pkt_dev); | |
3162 | } | |
3163 | ||
222f1806 | 3164 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 3165 | { |
222f1806 LC |
3166 | pkt_dev->seq_num = 1; |
3167 | pkt_dev->idle_acc = 0; | |
1da177e4 | 3168 | pkt_dev->sofar = 0; |
222f1806 LC |
3169 | pkt_dev->tx_bytes = 0; |
3170 | pkt_dev->errors = 0; | |
1da177e4 LT |
3171 | } |
3172 | ||
3173 | /* Set up structure for sending pkts, clear counters */ | |
3174 | ||
3175 | static void pktgen_run(struct pktgen_thread *t) | |
3176 | { | |
c26a8016 | 3177 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
3178 | int started = 0; |
3179 | ||
25c4e53a | 3180 | pr_debug("pktgen: entering pktgen_run. %p\n", t); |
1da177e4 LT |
3181 | |
3182 | if_lock(t); | |
c26a8016 | 3183 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
3184 | |
3185 | /* | |
3186 | * setup odev and create initial packet. | |
3187 | */ | |
3188 | pktgen_setup_inject(pkt_dev); | |
3189 | ||
222f1806 | 3190 | if (pkt_dev->odev) { |
1da177e4 | 3191 | pktgen_clear_counters(pkt_dev); |
222f1806 | 3192 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 | 3193 | pkt_dev->skb = NULL; |
fd29cf72 SH |
3194 | pkt_dev->started_at = |
3195 | pkt_dev->next_tx = ktime_now(); | |
3196 | ||
16dab72f | 3197 | set_pkt_overhead(pkt_dev); |
222f1806 | 3198 | |
1da177e4 LT |
3199 | strcpy(pkt_dev->result, "Starting"); |
3200 | started++; | |
222f1806 | 3201 | } else |
1da177e4 LT |
3202 | strcpy(pkt_dev->result, "Error starting"); |
3203 | } | |
3204 | if_unlock(t); | |
222f1806 LC |
3205 | if (started) |
3206 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3207 | } |
3208 | ||
3209 | static void pktgen_stop_all_threads_ifs(void) | |
3210 | { | |
cdcdbe0b | 3211 | struct pktgen_thread *t; |
1da177e4 | 3212 | |
25c4e53a | 3213 | pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n"); |
1da177e4 | 3214 | |
6146e6a4 | 3215 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3216 | |
3217 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3218 | t->control |= T_STOP; |
cdcdbe0b | 3219 | |
6146e6a4 | 3220 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3221 | } |
3222 | ||
648fda74 | 3223 | static int thread_is_running(const struct pktgen_thread *t) |
1da177e4 | 3224 | { |
648fda74 | 3225 | const struct pktgen_dev *pkt_dev; |
1da177e4 | 3226 | |
c26a8016 | 3227 | list_for_each_entry(pkt_dev, &t->if_list, list) |
648fda74 SH |
3228 | if (pkt_dev->running) |
3229 | return 1; | |
3230 | return 0; | |
1da177e4 LT |
3231 | } |
3232 | ||
222f1806 | 3233 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3234 | { |
222f1806 | 3235 | if_lock(t); |
1da177e4 | 3236 | |
222f1806 | 3237 | while (thread_is_running(t)) { |
1da177e4 | 3238 | |
222f1806 | 3239 | if_unlock(t); |
1da177e4 | 3240 | |
222f1806 | 3241 | msleep_interruptible(100); |
1da177e4 | 3242 | |
222f1806 LC |
3243 | if (signal_pending(current)) |
3244 | goto signal; | |
3245 | if_lock(t); | |
3246 | } | |
3247 | if_unlock(t); | |
3248 | return 1; | |
3249 | signal: | |
3250 | return 0; | |
1da177e4 LT |
3251 | } |
3252 | ||
3253 | static int pktgen_wait_all_threads_run(void) | |
3254 | { | |
cdcdbe0b | 3255 | struct pktgen_thread *t; |
1da177e4 | 3256 | int sig = 1; |
222f1806 | 3257 | |
6146e6a4 | 3258 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3259 | |
3260 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3261 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3262 | if (sig == 0) |
3263 | break; | |
1da177e4 | 3264 | } |
cdcdbe0b LC |
3265 | |
3266 | if (sig == 0) | |
3267 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3268 | t->control |= (T_STOP); |
cdcdbe0b | 3269 | |
6146e6a4 | 3270 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3271 | return sig; |
3272 | } | |
3273 | ||
3274 | static void pktgen_run_all_threads(void) | |
3275 | { | |
cdcdbe0b | 3276 | struct pktgen_thread *t; |
1da177e4 | 3277 | |
25c4e53a | 3278 | pr_debug("pktgen: entering pktgen_run_all_threads.\n"); |
1da177e4 | 3279 | |
6146e6a4 | 3280 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3281 | |
cdcdbe0b | 3282 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3283 | t->control |= (T_RUN); |
cdcdbe0b | 3284 | |
6146e6a4 | 3285 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3286 | |
63adc6fb SH |
3287 | /* Propagate thread->control */ |
3288 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
222f1806 | 3289 | |
1da177e4 LT |
3290 | pktgen_wait_all_threads_run(); |
3291 | } | |
3292 | ||
eb37b41c JB |
3293 | static void pktgen_reset_all_threads(void) |
3294 | { | |
3295 | struct pktgen_thread *t; | |
3296 | ||
3297 | pr_debug("pktgen: entering pktgen_reset_all_threads.\n"); | |
3298 | ||
3299 | mutex_lock(&pktgen_thread_lock); | |
3300 | ||
3301 | list_for_each_entry(t, &pktgen_threads, th_list) | |
3302 | t->control |= (T_REMDEVALL); | |
3303 | ||
3304 | mutex_unlock(&pktgen_thread_lock); | |
3305 | ||
63adc6fb SH |
3306 | /* Propagate thread->control */ |
3307 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
eb37b41c JB |
3308 | |
3309 | pktgen_wait_all_threads_run(); | |
3310 | } | |
3311 | ||
1da177e4 LT |
3312 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3313 | { | |
fd29cf72 | 3314 | __u64 bps, mbps, pps; |
222f1806 | 3315 | char *p = pkt_dev->result; |
fd29cf72 SH |
3316 | ktime_t elapsed = ktime_sub(pkt_dev->stopped_at, |
3317 | pkt_dev->started_at); | |
3318 | ktime_t idle = ns_to_ktime(pkt_dev->idle_acc); | |
3319 | ||
3320 | p += sprintf(p, "OK: %llu(c%llu+d%llu) nsec, %llu (%dbyte,%dfrags)\n", | |
3321 | (unsigned long long)ktime_to_us(elapsed), | |
3322 | (unsigned long long)ktime_to_us(ktime_sub(elapsed, idle)), | |
3323 | (unsigned long long)ktime_to_us(idle), | |
222f1806 LC |
3324 | (unsigned long long)pkt_dev->sofar, |
3325 | pkt_dev->cur_pkt_size, nr_frags); | |
3326 | ||
fd29cf72 SH |
3327 | pps = div64_u64(pkt_dev->sofar * NSEC_PER_SEC, |
3328 | ktime_to_ns(elapsed)); | |
222f1806 LC |
3329 | |
3330 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3331 | ||
3332 | mbps = bps; | |
3333 | do_div(mbps, 1000000); | |
3334 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3335 | (unsigned long long)pps, | |
3336 | (unsigned long long)mbps, | |
3337 | (unsigned long long)bps, | |
3338 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3339 | } |
1da177e4 LT |
3340 | |
3341 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
222f1806 | 3342 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3343 | { |
222f1806 | 3344 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3345 | |
222f1806 | 3346 | if (!pkt_dev->running) { |
25a8b254 | 3347 | printk(KERN_WARNING "pktgen: interface: %s is already " |
593f63b0 | 3348 | "stopped\n", pkt_dev->odevname); |
222f1806 LC |
3349 | return -EINVAL; |
3350 | } | |
1da177e4 | 3351 | |
3bda06a3 SH |
3352 | kfree_skb(pkt_dev->skb); |
3353 | pkt_dev->skb = NULL; | |
fd29cf72 | 3354 | pkt_dev->stopped_at = ktime_now(); |
222f1806 | 3355 | pkt_dev->running = 0; |
1da177e4 | 3356 | |
95ed63f7 | 3357 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3358 | |
222f1806 | 3359 | return 0; |
1da177e4 LT |
3360 | } |
3361 | ||
222f1806 | 3362 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3363 | { |
c26a8016 | 3364 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3365 | |
1da177e4 LT |
3366 | if_lock(t); |
3367 | ||
c26a8016 LC |
3368 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3369 | if (!pkt_dev->running) | |
222f1806 LC |
3370 | continue; |
3371 | if (best == NULL) | |
c26a8016 | 3372 | best = pkt_dev; |
fd29cf72 | 3373 | else if (ktime_lt(pkt_dev->next_tx, best->next_tx)) |
c26a8016 | 3374 | best = pkt_dev; |
1da177e4 LT |
3375 | } |
3376 | if_unlock(t); | |
222f1806 | 3377 | return best; |
1da177e4 LT |
3378 | } |
3379 | ||
222f1806 LC |
3380 | static void pktgen_stop(struct pktgen_thread *t) |
3381 | { | |
c26a8016 | 3382 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3383 | |
25c4e53a | 3384 | pr_debug("pktgen: entering pktgen_stop\n"); |
1da177e4 | 3385 | |
222f1806 | 3386 | if_lock(t); |
1da177e4 | 3387 | |
c26a8016 LC |
3388 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3389 | pktgen_stop_device(pkt_dev); | |
95ed63f7 | 3390 | } |
1da177e4 | 3391 | |
222f1806 | 3392 | if_unlock(t); |
1da177e4 LT |
3393 | } |
3394 | ||
95ed63f7 AK |
3395 | /* |
3396 | * one of our devices needs to be removed - find it | |
3397 | * and remove it | |
3398 | */ | |
3399 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3400 | { | |
c26a8016 LC |
3401 | struct list_head *q, *n; |
3402 | struct pktgen_dev *cur; | |
95ed63f7 | 3403 | |
25c4e53a | 3404 | pr_debug("pktgen: entering pktgen_rem_one_if\n"); |
95ed63f7 AK |
3405 | |
3406 | if_lock(t); | |
3407 | ||
c26a8016 LC |
3408 | list_for_each_safe(q, n, &t->if_list) { |
3409 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3410 | |
222f1806 LC |
3411 | if (!cur->removal_mark) |
3412 | continue; | |
95ed63f7 | 3413 | |
86dc1ad2 | 3414 | kfree_skb(cur->skb); |
95ed63f7 AK |
3415 | cur->skb = NULL; |
3416 | ||
3417 | pktgen_remove_device(t, cur); | |
3418 | ||
3419 | break; | |
3420 | } | |
3421 | ||
3422 | if_unlock(t); | |
3423 | } | |
3424 | ||
222f1806 | 3425 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3426 | { |
c26a8016 LC |
3427 | struct list_head *q, *n; |
3428 | struct pktgen_dev *cur; | |
222f1806 LC |
3429 | |
3430 | /* Remove all devices, free mem */ | |
95ed63f7 | 3431 | |
25c4e53a | 3432 | pr_debug("pktgen: entering pktgen_rem_all_ifs\n"); |
222f1806 | 3433 | if_lock(t); |
1da177e4 | 3434 | |
c26a8016 LC |
3435 | list_for_each_safe(q, n, &t->if_list) { |
3436 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3437 | |
86dc1ad2 | 3438 | kfree_skb(cur->skb); |
95ed63f7 AK |
3439 | cur->skb = NULL; |
3440 | ||
1da177e4 LT |
3441 | pktgen_remove_device(t, cur); |
3442 | } | |
3443 | ||
222f1806 | 3444 | if_unlock(t); |
1da177e4 LT |
3445 | } |
3446 | ||
222f1806 | 3447 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3448 | { |
222f1806 | 3449 | /* Remove from the thread list */ |
1da177e4 | 3450 | |
ee74baa7 | 3451 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3452 | |
6146e6a4 | 3453 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3454 | |
cdcdbe0b LC |
3455 | list_del(&t->th_list); |
3456 | ||
6146e6a4 | 3457 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3458 | } |
3459 | ||
ef87979c | 3460 | static void pktgen_resched(struct pktgen_dev *pkt_dev) |
3791decb | 3461 | { |
fd29cf72 | 3462 | ktime_t idle_start = ktime_now(); |
ef87979c SH |
3463 | schedule(); |
3464 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start)); | |
3465 | } | |
3791decb | 3466 | |
ef87979c SH |
3467 | static void pktgen_wait_for_skb(struct pktgen_dev *pkt_dev) |
3468 | { | |
3469 | ktime_t idle_start = ktime_now(); | |
3791decb | 3470 | |
ef87979c SH |
3471 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { |
3472 | if (signal_pending(current)) | |
3473 | break; | |
3474 | ||
3475 | if (need_resched()) | |
3476 | pktgen_resched(pkt_dev); | |
3477 | else | |
3478 | cpu_relax(); | |
3479 | } | |
fd29cf72 | 3480 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start)); |
3791decb SH |
3481 | } |
3482 | ||
475ac1e4 | 3483 | static void pktgen_xmit(struct pktgen_dev *pkt_dev) |
1da177e4 | 3484 | { |
00829823 | 3485 | struct net_device *odev = pkt_dev->odev; |
6fef4c0c | 3486 | netdev_tx_t (*xmit)(struct sk_buff *, struct net_device *) |
00829823 | 3487 | = odev->netdev_ops->ndo_start_xmit; |
fd2ea0a7 | 3488 | struct netdev_queue *txq; |
fd2ea0a7 | 3489 | u16 queue_map; |
1da177e4 LT |
3490 | int ret; |
3491 | ||
ef87979c SH |
3492 | /* If device is offline, then don't send */ |
3493 | if (unlikely(!netif_running(odev) || !netif_carrier_ok(odev))) { | |
3494 | pktgen_stop_device(pkt_dev); | |
3495 | return; | |
fd2ea0a7 DM |
3496 | } |
3497 | ||
ef87979c SH |
3498 | /* This is max DELAY, this has special meaning of |
3499 | * "never transmit" | |
3500 | */ | |
3501 | if (unlikely(pkt_dev->delay == ULLONG_MAX)) { | |
3502 | pkt_dev->next_tx = ktime_add_ns(ktime_now(), ULONG_MAX); | |
3791decb | 3503 | return; |
1da177e4 | 3504 | } |
222f1806 | 3505 | |
ef87979c | 3506 | /* If no skb or clone count exhausted then get new one */ |
7d7bb1cf SH |
3507 | if (!pkt_dev->skb || (pkt_dev->last_ok && |
3508 | ++pkt_dev->clone_count >= pkt_dev->clone_skb)) { | |
3509 | /* build a new pkt */ | |
3510 | kfree_skb(pkt_dev->skb); | |
3511 | ||
3512 | pkt_dev->skb = fill_packet(odev, pkt_dev); | |
3513 | if (pkt_dev->skb == NULL) { | |
3514 | printk(KERN_ERR "pktgen: ERROR: couldn't " | |
3515 | "allocate skb in fill_packet.\n"); | |
3516 | schedule(); | |
3517 | pkt_dev->clone_count--; /* back out increment, OOM */ | |
3518 | return; | |
1da177e4 | 3519 | } |
baac8564 | 3520 | pkt_dev->last_pkt_size = pkt_dev->skb->len; |
7d7bb1cf SH |
3521 | pkt_dev->allocated_skbs++; |
3522 | pkt_dev->clone_count = 0; /* reset counter */ | |
1da177e4 | 3523 | } |
95ed63f7 | 3524 | |
ef87979c SH |
3525 | if (pkt_dev->delay && pkt_dev->last_ok) |
3526 | spin(pkt_dev, pkt_dev->next_tx); | |
3527 | ||
fd2ea0a7 DM |
3528 | queue_map = skb_get_queue_mapping(pkt_dev->skb); |
3529 | txq = netdev_get_tx_queue(odev, queue_map); | |
3530 | ||
3531 | __netif_tx_lock_bh(txq); | |
5b8db2f5 | 3532 | |
0835acfe | 3533 | if (unlikely(netif_tx_queue_stopped(txq) || netif_tx_queue_frozen(txq))) { |
ef87979c | 3534 | ret = NETDEV_TX_BUSY; |
0835acfe ED |
3535 | pkt_dev->last_ok = 0; |
3536 | goto unlock; | |
3537 | } | |
3538 | atomic_inc(&(pkt_dev->skb->users)); | |
3539 | ret = (*xmit)(pkt_dev->skb, odev); | |
ef87979c SH |
3540 | |
3541 | switch (ret) { | |
3542 | case NETDEV_TX_OK: | |
3543 | txq_trans_update(txq); | |
3544 | pkt_dev->last_ok = 1; | |
3545 | pkt_dev->sofar++; | |
3546 | pkt_dev->seq_num++; | |
baac8564 | 3547 | pkt_dev->tx_bytes += pkt_dev->last_pkt_size; |
ef87979c | 3548 | break; |
f466dba1 JF |
3549 | case NET_XMIT_DROP: |
3550 | case NET_XMIT_CN: | |
3551 | case NET_XMIT_POLICED: | |
3552 | /* skb has been consumed */ | |
3553 | pkt_dev->errors++; | |
3554 | break; | |
ef87979c SH |
3555 | default: /* Drivers are not supposed to return other values! */ |
3556 | if (net_ratelimit()) | |
3557 | pr_info("pktgen: %s xmit error: %d\n", | |
593f63b0 | 3558 | pkt_dev->odevname, ret); |
ef87979c SH |
3559 | pkt_dev->errors++; |
3560 | /* fallthru */ | |
3561 | case NETDEV_TX_LOCKED: | |
3562 | case NETDEV_TX_BUSY: | |
3563 | /* Retry it next time */ | |
3564 | atomic_dec(&(pkt_dev->skb->users)); | |
3565 | pkt_dev->last_ok = 0; | |
222f1806 | 3566 | } |
0835acfe | 3567 | unlock: |
fd2ea0a7 | 3568 | __netif_tx_unlock_bh(txq); |
222f1806 | 3569 | |
1da177e4 LT |
3570 | /* If pkt_dev->count is zero, then run forever */ |
3571 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
ef87979c | 3572 | pktgen_wait_for_skb(pkt_dev); |
222f1806 | 3573 | |
1da177e4 LT |
3574 | /* Done with this */ |
3575 | pktgen_stop_device(pkt_dev); | |
222f1806 | 3576 | } |
222f1806 | 3577 | } |
1da177e4 | 3578 | |
4ec93edb | 3579 | /* |
1da177e4 LT |
3580 | * Main loop of the thread goes here |
3581 | */ | |
3582 | ||
ee74baa7 | 3583 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3584 | { |
3585 | DEFINE_WAIT(wait); | |
ee74baa7 | 3586 | struct pktgen_thread *t = arg; |
222f1806 | 3587 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3588 | int cpu = t->cpu; |
1da177e4 | 3589 | |
ee74baa7 | 3590 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3591 | |
3592 | init_waitqueue_head(&t->queue); | |
d3ede327 | 3593 | complete(&t->start_done); |
1da177e4 | 3594 | |
63adc6fb SH |
3595 | pr_debug("pktgen: starting pktgen/%d: pid=%d\n", |
3596 | cpu, task_pid_nr(current)); | |
1da177e4 | 3597 | |
ee74baa7 | 3598 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3599 | |
83144186 RW |
3600 | set_freezable(); |
3601 | ||
ee74baa7 DM |
3602 | while (!kthread_should_stop()) { |
3603 | pkt_dev = next_to_run(t); | |
1da177e4 | 3604 | |
ef87979c SH |
3605 | if (unlikely(!pkt_dev && t->control == 0)) { |
3606 | wait_event_interruptible_timeout(t->queue, | |
3607 | t->control != 0, | |
3608 | HZ/10); | |
1b3f720b | 3609 | try_to_freeze(); |
ef87979c | 3610 | continue; |
ee74baa7 | 3611 | } |
1da177e4 | 3612 | |
ee74baa7 | 3613 | __set_current_state(TASK_RUNNING); |
222f1806 | 3614 | |
ef87979c | 3615 | if (likely(pkt_dev)) { |
1da177e4 LT |
3616 | pktgen_xmit(pkt_dev); |
3617 | ||
ef87979c SH |
3618 | if (need_resched()) |
3619 | pktgen_resched(pkt_dev); | |
3620 | else | |
3621 | cpu_relax(); | |
3622 | } | |
3623 | ||
222f1806 | 3624 | if (t->control & T_STOP) { |
1da177e4 LT |
3625 | pktgen_stop(t); |
3626 | t->control &= ~(T_STOP); | |
3627 | } | |
3628 | ||
222f1806 | 3629 | if (t->control & T_RUN) { |
1da177e4 LT |
3630 | pktgen_run(t); |
3631 | t->control &= ~(T_RUN); | |
3632 | } | |
3633 | ||
222f1806 | 3634 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3635 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3636 | t->control &= ~(T_REMDEVALL); |
3637 | } | |
3638 | ||
222f1806 | 3639 | if (t->control & T_REMDEV) { |
95ed63f7 | 3640 | pktgen_rem_one_if(t); |
1da177e4 LT |
3641 | t->control &= ~(T_REMDEV); |
3642 | } | |
3643 | ||
09fe3ef4 AM |
3644 | try_to_freeze(); |
3645 | ||
ee74baa7 | 3646 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3647 | } |
1da177e4 | 3648 | |
25c4e53a | 3649 | pr_debug("pktgen: %s stopping all device\n", t->tsk->comm); |
222f1806 | 3650 | pktgen_stop(t); |
1da177e4 | 3651 | |
25c4e53a | 3652 | pr_debug("pktgen: %s removing all device\n", t->tsk->comm); |
222f1806 | 3653 | pktgen_rem_all_ifs(t); |
1da177e4 | 3654 | |
25c4e53a | 3655 | pr_debug("pktgen: %s removing thread.\n", t->tsk->comm); |
222f1806 | 3656 | pktgen_rem_thread(t); |
cdcdbe0b | 3657 | |
ee74baa7 | 3658 | return 0; |
1da177e4 LT |
3659 | } |
3660 | ||
222f1806 | 3661 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3e984840 | 3662 | const char *ifname, bool exact) |
1da177e4 | 3663 | { |
c26a8016 | 3664 | struct pktgen_dev *p, *pkt_dev = NULL; |
3e984840 | 3665 | size_t len = strlen(ifname); |
222f1806 | 3666 | |
3e984840 | 3667 | if_lock(t); |
c26a8016 | 3668 | list_for_each_entry(p, &t->if_list, list) |
3e984840 ED |
3669 | if (strncmp(p->odevname, ifname, len) == 0) { |
3670 | if (p->odevname[len]) { | |
3671 | if (exact || p->odevname[len] != '@') | |
3672 | continue; | |
3673 | } | |
c26a8016 | 3674 | pkt_dev = p; |
222f1806 LC |
3675 | break; |
3676 | } | |
222f1806 LC |
3677 | |
3678 | if_unlock(t); | |
25c4e53a | 3679 | pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3680 | return pkt_dev; |
1da177e4 LT |
3681 | } |
3682 | ||
4ec93edb YH |
3683 | /* |
3684 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3685 | */ |
3686 | ||
222f1806 LC |
3687 | static int add_dev_to_thread(struct pktgen_thread *t, |
3688 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3689 | { |
3690 | int rv = 0; | |
222f1806 LC |
3691 | |
3692 | if_lock(t); | |
3693 | ||
3694 | if (pkt_dev->pg_thread) { | |
25a8b254 DM |
3695 | printk(KERN_ERR "pktgen: ERROR: already assigned " |
3696 | "to a thread.\n"); | |
222f1806 LC |
3697 | rv = -EBUSY; |
3698 | goto out; | |
3699 | } | |
c26a8016 LC |
3700 | |
3701 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3702 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3703 | pkt_dev->running = 0; |
3704 | ||
222f1806 LC |
3705 | out: |
3706 | if_unlock(t); | |
3707 | return rv; | |
1da177e4 LT |
3708 | } |
3709 | ||
3710 | /* Called under thread lock */ | |
3711 | ||
222f1806 | 3712 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3713 | { |
222f1806 | 3714 | struct pktgen_dev *pkt_dev; |
39df232f | 3715 | int err; |
3291b9db | 3716 | int node = cpu_to_node(t->cpu); |
222f1806 | 3717 | |
1da177e4 LT |
3718 | /* We don't allow a device to be on several threads */ |
3719 | ||
d50a6b56 SH |
3720 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3721 | if (pkt_dev) { | |
25a8b254 | 3722 | printk(KERN_ERR "pktgen: ERROR: interface already used.\n"); |
222f1806 LC |
3723 | return -EBUSY; |
3724 | } | |
d50a6b56 | 3725 | |
3291b9db | 3726 | pkt_dev = kzalloc_node(sizeof(struct pktgen_dev), GFP_KERNEL, node); |
d50a6b56 SH |
3727 | if (!pkt_dev) |
3728 | return -ENOMEM; | |
3729 | ||
593f63b0 | 3730 | strcpy(pkt_dev->odevname, ifname); |
3291b9db ED |
3731 | pkt_dev->flows = vmalloc_node(MAX_CFLOWS * sizeof(struct flow_state), |
3732 | node); | |
d50a6b56 SH |
3733 | if (pkt_dev->flows == NULL) { |
3734 | kfree(pkt_dev); | |
3735 | return -ENOMEM; | |
3736 | } | |
222f1806 | 3737 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3738 | |
95ed63f7 | 3739 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3740 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3741 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3742 | pkt_dev->nfrags = 0; | |
3743 | pkt_dev->clone_skb = pg_clone_skb_d; | |
fd29cf72 | 3744 | pkt_dev->delay = pg_delay_d; |
d50a6b56 SH |
3745 | pkt_dev->count = pg_count_d; |
3746 | pkt_dev->sofar = 0; | |
222f1806 | 3747 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3748 | pkt_dev->udp_src_max = 9; |
3749 | pkt_dev->udp_dst_min = 9; | |
3750 | pkt_dev->udp_dst_max = 9; | |
3751 | ||
34954ddc FF |
3752 | pkt_dev->vlan_p = 0; |
3753 | pkt_dev->vlan_cfi = 0; | |
3754 | pkt_dev->vlan_id = 0xffff; | |
3755 | pkt_dev->svlan_p = 0; | |
3756 | pkt_dev->svlan_cfi = 0; | |
3757 | pkt_dev->svlan_id = 0xffff; | |
e99b99b4 | 3758 | pkt_dev->node = -1; |
34954ddc | 3759 | |
39df232f SH |
3760 | err = pktgen_setup_dev(pkt_dev, ifname); |
3761 | if (err) | |
3762 | goto out1; | |
d50a6b56 | 3763 | |
5efdccbc DL |
3764 | pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir, |
3765 | &pktgen_if_fops, pkt_dev); | |
39df232f | 3766 | if (!pkt_dev->entry) { |
25a8b254 | 3767 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
d50a6b56 | 3768 | PG_PROC_DIR, ifname); |
39df232f SH |
3769 | err = -EINVAL; |
3770 | goto out2; | |
d50a6b56 | 3771 | } |
a553e4a6 JHS |
3772 | #ifdef CONFIG_XFRM |
3773 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3774 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3775 | #endif | |
d50a6b56 SH |
3776 | |
3777 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3778 | out2: |
3779 | dev_put(pkt_dev->odev); | |
3780 | out1: | |
a553e4a6 JHS |
3781 | #ifdef CONFIG_XFRM |
3782 | free_SAs(pkt_dev); | |
3783 | #endif | |
1d0ebfe7 | 3784 | vfree(pkt_dev->flows); |
39df232f SH |
3785 | kfree(pkt_dev); |
3786 | return err; | |
1da177e4 LT |
3787 | } |
3788 | ||
ee74baa7 | 3789 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3790 | { |
cdcdbe0b | 3791 | struct pktgen_thread *t; |
d50a6b56 | 3792 | struct proc_dir_entry *pe; |
ee74baa7 | 3793 | struct task_struct *p; |
222f1806 | 3794 | |
3291b9db ED |
3795 | t = kzalloc_node(sizeof(struct pktgen_thread), GFP_KERNEL, |
3796 | cpu_to_node(cpu)); | |
222f1806 | 3797 | if (!t) { |
25a8b254 DM |
3798 | printk(KERN_ERR "pktgen: ERROR: out of memory, can't " |
3799 | "create new thread.\n"); | |
222f1806 LC |
3800 | return -ENOMEM; |
3801 | } | |
3802 | ||
222f1806 | 3803 | spin_lock_init(&t->if_lock); |
1da177e4 | 3804 | t->cpu = cpu; |
222f1806 | 3805 | |
ee74baa7 DM |
3806 | INIT_LIST_HEAD(&t->if_list); |
3807 | ||
3808 | list_add_tail(&t->th_list, &pktgen_threads); | |
d3ede327 | 3809 | init_completion(&t->start_done); |
ee74baa7 DM |
3810 | |
3811 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3812 | if (IS_ERR(p)) { | |
25a8b254 DM |
3813 | printk(KERN_ERR "pktgen: kernel_thread() failed " |
3814 | "for cpu %d\n", t->cpu); | |
ee74baa7 DM |
3815 | list_del(&t->th_list); |
3816 | kfree(t); | |
3817 | return PTR_ERR(p); | |
3818 | } | |
3819 | kthread_bind(p, cpu); | |
3820 | t->tsk = p; | |
3821 | ||
5efdccbc DL |
3822 | pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir, |
3823 | &pktgen_thread_fops, t); | |
222f1806 | 3824 | if (!pe) { |
25a8b254 | 3825 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
ee74baa7 DM |
3826 | PG_PROC_DIR, t->tsk->comm); |
3827 | kthread_stop(p); | |
3828 | list_del(&t->th_list); | |
222f1806 LC |
3829 | kfree(t); |
3830 | return -EINVAL; | |
3831 | } | |
d50a6b56 | 3832 | |
ee74baa7 | 3833 | wake_up_process(p); |
d3ede327 | 3834 | wait_for_completion(&t->start_done); |
1da177e4 LT |
3835 | |
3836 | return 0; | |
3837 | } | |
3838 | ||
4ec93edb YH |
3839 | /* |
3840 | * Removes a device from the thread if_list. | |
1da177e4 | 3841 | */ |
222f1806 LC |
3842 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3843 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3844 | { |
c26a8016 LC |
3845 | struct list_head *q, *n; |
3846 | struct pktgen_dev *p; | |
1da177e4 | 3847 | |
c26a8016 LC |
3848 | list_for_each_safe(q, n, &t->if_list) { |
3849 | p = list_entry(q, struct pktgen_dev, list); | |
3850 | if (p == pkt_dev) | |
3851 | list_del(&p->list); | |
1da177e4 LT |
3852 | } |
3853 | } | |
3854 | ||
222f1806 LC |
3855 | static int pktgen_remove_device(struct pktgen_thread *t, |
3856 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3857 | { |
3858 | ||
25c4e53a | 3859 | pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3860 | |
222f1806 | 3861 | if (pkt_dev->running) { |
25a8b254 DM |
3862 | printk(KERN_WARNING "pktgen: WARNING: trying to remove a " |
3863 | "running interface, stopping it now.\n"); | |
222f1806 LC |
3864 | pktgen_stop_device(pkt_dev); |
3865 | } | |
3866 | ||
3867 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3868 | |
3869 | if (pkt_dev->odev) { | |
3870 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3871 | pkt_dev->odev = NULL; |
3872 | } | |
3873 | ||
1da177e4 LT |
3874 | /* And update the thread if_list */ |
3875 | ||
3876 | _rem_dev_from_if_list(t, pkt_dev); | |
3877 | ||
39df232f SH |
3878 | if (pkt_dev->entry) |
3879 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3880 | |
a553e4a6 JHS |
3881 | #ifdef CONFIG_XFRM |
3882 | free_SAs(pkt_dev); | |
3883 | #endif | |
1d0ebfe7 | 3884 | vfree(pkt_dev->flows); |
1da177e4 | 3885 | kfree(pkt_dev); |
222f1806 | 3886 | return 0; |
1da177e4 LT |
3887 | } |
3888 | ||
222f1806 | 3889 | static int __init pg_init(void) |
1da177e4 LT |
3890 | { |
3891 | int cpu; | |
d50a6b56 | 3892 | struct proc_dir_entry *pe; |
1da177e4 | 3893 | |
25a8b254 | 3894 | printk(KERN_INFO "%s", version); |
1da177e4 | 3895 | |
457c4cbc | 3896 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3897 | if (!pg_proc_dir) |
3898 | return -ENODEV; | |
1da177e4 | 3899 | |
25296d59 | 3900 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3901 | if (pe == NULL) { |
25a8b254 DM |
3902 | printk(KERN_ERR "pktgen: ERROR: cannot create %s " |
3903 | "procfs entry.\n", PGCTRL); | |
457c4cbc | 3904 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3905 | return -EINVAL; |
3906 | } | |
1da177e4 | 3907 | |
1da177e4 LT |
3908 | /* Register us to receive netdevice events */ |
3909 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3910 | |
670c02c2 | 3911 | for_each_online_cpu(cpu) { |
8024bb24 | 3912 | int err; |
1da177e4 | 3913 | |
ee74baa7 | 3914 | err = pktgen_create_thread(cpu); |
8024bb24 | 3915 | if (err) |
25a8b254 DM |
3916 | printk(KERN_WARNING "pktgen: WARNING: Cannot create " |
3917 | "thread for cpu %d (%d)\n", cpu, err); | |
222f1806 | 3918 | } |
8024bb24 LC |
3919 | |
3920 | if (list_empty(&pktgen_threads)) { | |
25a8b254 DM |
3921 | printk(KERN_ERR "pktgen: ERROR: Initialization failed for " |
3922 | "all threads\n"); | |
8024bb24 LC |
3923 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3924 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3925 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3926 | return -ENODEV; |
3927 | } | |
3928 | ||
222f1806 | 3929 | return 0; |
1da177e4 LT |
3930 | } |
3931 | ||
3932 | static void __exit pg_cleanup(void) | |
3933 | { | |
cdcdbe0b LC |
3934 | struct pktgen_thread *t; |
3935 | struct list_head *q, *n; | |
1da177e4 LT |
3936 | wait_queue_head_t queue; |
3937 | init_waitqueue_head(&queue); | |
3938 | ||
222f1806 | 3939 | /* Stop all interfaces & threads */ |
1da177e4 | 3940 | |
cdcdbe0b LC |
3941 | list_for_each_safe(q, n, &pktgen_threads) { |
3942 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3943 | kthread_stop(t->tsk); |
3944 | kfree(t); | |
222f1806 | 3945 | } |
1da177e4 | 3946 | |
222f1806 | 3947 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3948 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3949 | ||
222f1806 | 3950 | /* Clean up proc file system */ |
d50a6b56 | 3951 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3952 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3953 | } |
3954 | ||
1da177e4 LT |
3955 | module_init(pg_init); |
3956 | module_exit(pg_cleanup); | |
3957 | ||
c3d2f52d | 3958 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se>"); |
1da177e4 LT |
3959 | MODULE_DESCRIPTION("Packet Generator tool"); |
3960 | MODULE_LICENSE("GPL"); | |
c3d2f52d | 3961 | MODULE_VERSION(VERSION); |
1da177e4 | 3962 | module_param(pg_count_d, int, 0); |
c3d2f52d | 3963 | MODULE_PARM_DESC(pg_count_d, "Default number of packets to inject"); |
1da177e4 | 3964 | module_param(pg_delay_d, int, 0); |
c3d2f52d | 3965 | MODULE_PARM_DESC(pg_delay_d, "Default delay between packets (nanoseconds)"); |
1da177e4 | 3966 | module_param(pg_clone_skb_d, int, 0); |
c3d2f52d | 3967 | MODULE_PARM_DESC(pg_clone_skb_d, "Default number of copies of the same packet"); |
1da177e4 | 3968 | module_param(debug, int, 0); |
c3d2f52d | 3969 | MODULE_PARM_DESC(debug, "Enable debugging of pktgen module"); |