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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 | |
c3d2f52d | 172 | #define VERSION "2.72" |
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() */ |
1da177e4 LT |
193 | |
194 | /* Thread control flag bits */ | |
222f1806 LC |
195 | #define T_TERMINATE (1<<0) |
196 | #define T_STOP (1<<1) /* Stop run */ | |
197 | #define T_RUN (1<<2) /* Start run */ | |
198 | #define T_REMDEVALL (1<<3) /* Remove all devs */ | |
199 | #define T_REMDEV (1<<4) /* 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 */ | |
63adc6fb SH |
254 | __u64 errors; /* Errors when trying to transmit, |
255 | pkts will be re-sent */ | |
222f1806 LC |
256 | |
257 | /* runtime counters relating to clone_skb */ | |
222f1806 LC |
258 | |
259 | __u64 allocated_skbs; | |
260 | __u32 clone_count; | |
261 | int last_ok; /* Was last skb sent? | |
63adc6fb SH |
262 | * Or a failed transmit of some sort? |
263 | * This will keep sequence numbers in order | |
222f1806 | 264 | */ |
fd29cf72 SH |
265 | ktime_t next_tx; |
266 | ktime_t started_at; | |
267 | ktime_t stopped_at; | |
268 | u64 idle_acc; /* nano-seconds */ | |
269 | ||
222f1806 LC |
270 | __u32 seq_num; |
271 | ||
63adc6fb SH |
272 | int clone_skb; /* |
273 | * Use multiple SKBs during packet gen. | |
274 | * If this number is greater than 1, then | |
275 | * that many copies of the same packet will be | |
276 | * sent before a new packet is allocated. | |
277 | * If you want to send 1024 identical packets | |
278 | * before creating a new packet, | |
279 | * set clone_skb to 1024. | |
222f1806 LC |
280 | */ |
281 | ||
282 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
283 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
284 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
285 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
286 | ||
287 | struct in6_addr in6_saddr; | |
288 | struct in6_addr in6_daddr; | |
289 | struct in6_addr cur_in6_daddr; | |
290 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 291 | /* For ranges */ |
222f1806 LC |
292 | struct in6_addr min_in6_daddr; |
293 | struct in6_addr max_in6_daddr; | |
294 | struct in6_addr min_in6_saddr; | |
295 | struct in6_addr max_in6_saddr; | |
296 | ||
297 | /* If we're doing ranges, random or incremental, then this | |
298 | * defines the min/max for those ranges. | |
299 | */ | |
252e3346 AV |
300 | __be32 saddr_min; /* inclusive, source IP address */ |
301 | __be32 saddr_max; /* exclusive, source IP address */ | |
302 | __be32 daddr_min; /* inclusive, dest IP address */ | |
303 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
304 | |
305 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
306 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
307 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
308 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
309 | ||
1ca7768c | 310 | /* DSCP + ECN */ |
63adc6fb SH |
311 | __u8 tos; /* six MSB of (former) IPv4 TOS |
312 | are for dscp codepoint */ | |
313 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 | |
314 | (see RFC 3260, sec. 4) */ | |
1ca7768c | 315 | |
ca6549af SW |
316 | /* MPLS */ |
317 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
318 | __be32 labels[MAX_MPLS_LABELS]; | |
319 | ||
34954ddc FF |
320 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
321 | __u8 vlan_p; | |
322 | __u8 vlan_cfi; | |
323 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
324 | ||
325 | __u8 svlan_p; | |
326 | __u8 svlan_cfi; | |
327 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
328 | ||
222f1806 LC |
329 | __u32 src_mac_count; /* How many MACs to iterate through */ |
330 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
331 | ||
332 | unsigned char dst_mac[ETH_ALEN]; | |
333 | unsigned char src_mac[ETH_ALEN]; | |
334 | ||
335 | __u32 cur_dst_mac_offset; | |
336 | __u32 cur_src_mac_offset; | |
252e3346 AV |
337 | __be32 cur_saddr; |
338 | __be32 cur_daddr; | |
222f1806 LC |
339 | __u16 cur_udp_dst; |
340 | __u16 cur_udp_src; | |
45b270f8 | 341 | __u16 cur_queue_map; |
222f1806 LC |
342 | __u32 cur_pkt_size; |
343 | ||
344 | __u8 hh[14]; | |
345 | /* = { | |
346 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
347 | ||
348 | We fill in SRC address later | |
349 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
350 | 0x08, 0x00 | |
351 | }; | |
352 | */ | |
353 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
354 | ||
63adc6fb | 355 | struct sk_buff *skb; /* skb we are to transmit next, used for when we |
222f1806 LC |
356 | * are transmitting the same one multiple times |
357 | */ | |
63adc6fb SH |
358 | struct net_device *odev; /* The out-going device. |
359 | * Note that the device should have it's | |
360 | * pg_info pointer pointing back to this | |
361 | * device. | |
362 | * Set when the user specifies the out-going | |
363 | * device name (not when the inject is | |
364 | * started as it used to do.) | |
365 | */ | |
1da177e4 | 366 | struct flow_state *flows; |
222f1806 LC |
367 | unsigned cflows; /* Concurrent flows (config) */ |
368 | unsigned lflow; /* Flow length (config) */ | |
369 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 370 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
371 | |
372 | u16 queue_map_min; | |
373 | u16 queue_map_max; | |
374 | ||
a553e4a6 JHS |
375 | #ifdef CONFIG_XFRM |
376 | __u8 ipsmode; /* IPSEC mode (config) */ | |
377 | __u8 ipsproto; /* IPSEC type (config) */ | |
378 | #endif | |
39df232f | 379 | char result[512]; |
1da177e4 LT |
380 | }; |
381 | ||
382 | struct pktgen_hdr { | |
252e3346 AV |
383 | __be32 pgh_magic; |
384 | __be32 seq_num; | |
385 | __be32 tv_sec; | |
386 | __be32 tv_usec; | |
1da177e4 LT |
387 | }; |
388 | ||
389 | struct pktgen_thread { | |
63adc6fb | 390 | spinlock_t if_lock; /* for list of devices */ |
c26a8016 | 391 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 392 | struct list_head th_list; |
ee74baa7 | 393 | struct task_struct *tsk; |
222f1806 | 394 | char result[512]; |
222f1806 | 395 | |
63adc6fb SH |
396 | /* Field for thread to receive "posted" events terminate, |
397 | stop ifs etc. */ | |
222f1806 LC |
398 | |
399 | u32 control; | |
1da177e4 LT |
400 | int cpu; |
401 | ||
222f1806 | 402 | wait_queue_head_t queue; |
d3ede327 | 403 | struct completion start_done; |
1da177e4 LT |
404 | }; |
405 | ||
406 | #define REMOVE 1 | |
407 | #define FIND 0 | |
408 | ||
fd29cf72 | 409 | static inline ktime_t ktime_now(void) |
1da177e4 | 410 | { |
fd29cf72 SH |
411 | struct timespec ts; |
412 | ktime_get_ts(&ts); | |
413 | ||
414 | return timespec_to_ktime(ts); | |
1da177e4 LT |
415 | } |
416 | ||
fd29cf72 SH |
417 | /* This works even if 32 bit because of careful byte order choice */ |
418 | static inline int ktime_lt(const ktime_t cmp1, const ktime_t cmp2) | |
1da177e4 | 419 | { |
fd29cf72 | 420 | return cmp1.tv64 < cmp2.tv64; |
1da177e4 LT |
421 | } |
422 | ||
c3d2f52d SH |
423 | static const char version[] = |
424 | "pktgen " VERSION ": Packet Generator for packet performance testing.\n"; | |
1da177e4 | 425 | |
222f1806 LC |
426 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
427 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
428 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
429 | const char *ifname); | |
1da177e4 LT |
430 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
431 | static void pktgen_run_all_threads(void); | |
eb37b41c | 432 | static void pktgen_reset_all_threads(void); |
1da177e4 | 433 | static void pktgen_stop_all_threads_ifs(void); |
3bda06a3 | 434 | |
222f1806 | 435 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 436 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 437 | |
222f1806 LC |
438 | static unsigned int scan_ip6(const char *s, char ip[16]); |
439 | static unsigned int fmt_ip6(char *s, const char ip[16]); | |
1da177e4 LT |
440 | |
441 | /* Module parameters, defaults. */ | |
65c5b786 SH |
442 | static int pg_count_d __read_mostly = 1000; |
443 | static int pg_delay_d __read_mostly; | |
444 | static int pg_clone_skb_d __read_mostly; | |
445 | static int debug __read_mostly; | |
1da177e4 | 446 | |
222fa076 | 447 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 448 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 449 | |
1da177e4 LT |
450 | static struct notifier_block pktgen_notifier_block = { |
451 | .notifier_call = pktgen_device_event, | |
452 | }; | |
453 | ||
1da177e4 | 454 | /* |
4ec93edb | 455 | * /proc handling functions |
1da177e4 LT |
456 | * |
457 | */ | |
458 | ||
d50a6b56 | 459 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 460 | { |
c3d2f52d | 461 | seq_puts(seq, version); |
d50a6b56 | 462 | return 0; |
1da177e4 LT |
463 | } |
464 | ||
63adc6fb SH |
465 | static ssize_t pgctrl_write(struct file *file, const char __user *buf, |
466 | size_t count, loff_t *ppos) | |
1da177e4 | 467 | { |
1da177e4 | 468 | int err = 0; |
d50a6b56 | 469 | char data[128]; |
1da177e4 | 470 | |
222f1806 LC |
471 | if (!capable(CAP_NET_ADMIN)) { |
472 | err = -EPERM; | |
1da177e4 | 473 | goto out; |
222f1806 | 474 | } |
1da177e4 | 475 | |
d50a6b56 SH |
476 | if (count > sizeof(data)) |
477 | count = sizeof(data); | |
1da177e4 | 478 | |
1da177e4 | 479 | if (copy_from_user(data, buf, count)) { |
b4099fab | 480 | err = -EFAULT; |
d50a6b56 | 481 | goto out; |
222f1806 LC |
482 | } |
483 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 484 | |
222f1806 | 485 | if (!strcmp(data, "stop")) |
1da177e4 LT |
486 | pktgen_stop_all_threads_ifs(); |
487 | ||
222f1806 | 488 | else if (!strcmp(data, "start")) |
1da177e4 LT |
489 | pktgen_run_all_threads(); |
490 | ||
eb37b41c JB |
491 | else if (!strcmp(data, "reset")) |
492 | pktgen_reset_all_threads(); | |
493 | ||
222f1806 | 494 | else |
25a8b254 | 495 | printk(KERN_WARNING "pktgen: Unknown command: %s\n", data); |
1da177e4 LT |
496 | |
497 | err = count; | |
498 | ||
222f1806 LC |
499 | out: |
500 | return err; | |
1da177e4 LT |
501 | } |
502 | ||
d50a6b56 SH |
503 | static int pgctrl_open(struct inode *inode, struct file *file) |
504 | { | |
505 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
506 | } | |
507 | ||
9a32144e | 508 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
509 | .owner = THIS_MODULE, |
510 | .open = pgctrl_open, | |
511 | .read = seq_read, | |
512 | .llseek = seq_lseek, | |
513 | .write = pgctrl_write, | |
514 | .release = single_release, | |
d50a6b56 SH |
515 | }; |
516 | ||
517 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 518 | { |
648fda74 | 519 | const struct pktgen_dev *pkt_dev = seq->private; |
fd29cf72 SH |
520 | ktime_t stopped; |
521 | u64 idle; | |
222f1806 LC |
522 | |
523 | seq_printf(seq, | |
524 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
525 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
526 | pkt_dev->max_pkt_size); | |
527 | ||
528 | seq_printf(seq, | |
fd29cf72 SH |
529 | " frags: %d delay: %llu clone_skb: %d ifname: %s\n", |
530 | pkt_dev->nfrags, (unsigned long long) pkt_dev->delay, | |
39df232f | 531 | pkt_dev->clone_skb, pkt_dev->odev->name); |
222f1806 LC |
532 | |
533 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
534 | pkt_dev->lflow); | |
535 | ||
45b270f8 RO |
536 | seq_printf(seq, |
537 | " queue_map_min: %u queue_map_max: %u\n", | |
538 | pkt_dev->queue_map_min, | |
539 | pkt_dev->queue_map_max); | |
540 | ||
222f1806 LC |
541 | if (pkt_dev->flags & F_IPV6) { |
542 | char b1[128], b2[128], b3[128]; | |
543 | fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr); | |
544 | fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr); | |
545 | fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr); | |
546 | seq_printf(seq, | |
547 | " saddr: %s min_saddr: %s max_saddr: %s\n", b1, | |
548 | b2, b3); | |
549 | ||
550 | fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr); | |
551 | fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr); | |
552 | fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr); | |
553 | seq_printf(seq, | |
554 | " daddr: %s min_daddr: %s max_daddr: %s\n", b1, | |
555 | b2, b3); | |
556 | ||
63adc6fb SH |
557 | } else { |
558 | seq_printf(seq, | |
559 | " dst_min: %s dst_max: %s\n", | |
560 | pkt_dev->dst_min, pkt_dev->dst_max); | |
222f1806 | 561 | seq_printf(seq, |
63adc6fb SH |
562 | " src_min: %s src_max: %s\n", |
563 | pkt_dev->src_min, pkt_dev->src_max); | |
564 | } | |
1da177e4 | 565 | |
222f1806 | 566 | seq_puts(seq, " src_mac: "); |
1da177e4 | 567 | |
e174961c JB |
568 | seq_printf(seq, "%pM ", |
569 | is_zero_ether_addr(pkt_dev->src_mac) ? | |
570 | pkt_dev->odev->dev_addr : pkt_dev->src_mac); | |
222f1806 LC |
571 | |
572 | seq_printf(seq, "dst_mac: "); | |
e174961c | 573 | seq_printf(seq, "%pM\n", pkt_dev->dst_mac); |
222f1806 LC |
574 | |
575 | seq_printf(seq, | |
63adc6fb SH |
576 | " udp_src_min: %d udp_src_max: %d" |
577 | " udp_dst_min: %d udp_dst_max: %d\n", | |
222f1806 LC |
578 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, |
579 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
580 | ||
581 | seq_printf(seq, | |
ca6549af | 582 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 583 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 584 | |
ca6549af SW |
585 | if (pkt_dev->nr_labels) { |
586 | unsigned i; | |
587 | seq_printf(seq, " mpls: "); | |
e71a4783 | 588 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
589 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
590 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
591 | } | |
592 | ||
63adc6fb | 593 | if (pkt_dev->vlan_id != 0xffff) |
34954ddc | 594 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
595 | pkt_dev->vlan_id, pkt_dev->vlan_p, |
596 | pkt_dev->vlan_cfi); | |
34954ddc | 597 | |
63adc6fb | 598 | if (pkt_dev->svlan_id != 0xffff) |
34954ddc | 599 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
600 | pkt_dev->svlan_id, pkt_dev->svlan_p, |
601 | pkt_dev->svlan_cfi); | |
34954ddc | 602 | |
63adc6fb | 603 | if (pkt_dev->tos) |
1ca7768c | 604 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); |
1ca7768c | 605 | |
63adc6fb | 606 | if (pkt_dev->traffic_class) |
1ca7768c | 607 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); |
1ca7768c | 608 | |
ca6549af SW |
609 | seq_printf(seq, " Flags: "); |
610 | ||
222f1806 LC |
611 | if (pkt_dev->flags & F_IPV6) |
612 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 613 | |
222f1806 LC |
614 | if (pkt_dev->flags & F_IPSRC_RND) |
615 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 616 | |
222f1806 LC |
617 | if (pkt_dev->flags & F_IPDST_RND) |
618 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 619 | |
222f1806 LC |
620 | if (pkt_dev->flags & F_TXSIZE_RND) |
621 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 622 | |
222f1806 LC |
623 | if (pkt_dev->flags & F_UDPSRC_RND) |
624 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 625 | |
222f1806 LC |
626 | if (pkt_dev->flags & F_UDPDST_RND) |
627 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 628 | |
ca6549af SW |
629 | if (pkt_dev->flags & F_MPLS_RND) |
630 | seq_printf(seq, "MPLS_RND "); | |
631 | ||
45b270f8 RO |
632 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
633 | seq_printf(seq, "QUEUE_MAP_RND "); | |
634 | ||
e6fce5b9 RO |
635 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) |
636 | seq_printf(seq, "QUEUE_MAP_CPU "); | |
637 | ||
007a531b JHS |
638 | if (pkt_dev->cflows) { |
639 | if (pkt_dev->flags & F_FLOW_SEQ) | |
640 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
641 | else | |
642 | seq_printf(seq, "FLOW_RND "); | |
643 | } | |
644 | ||
a553e4a6 JHS |
645 | #ifdef CONFIG_XFRM |
646 | if (pkt_dev->flags & F_IPSEC_ON) | |
647 | seq_printf(seq, "IPSEC "); | |
648 | #endif | |
649 | ||
222f1806 LC |
650 | if (pkt_dev->flags & F_MACSRC_RND) |
651 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 652 | |
222f1806 LC |
653 | if (pkt_dev->flags & F_MACDST_RND) |
654 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 655 | |
34954ddc FF |
656 | if (pkt_dev->flags & F_VID_RND) |
657 | seq_printf(seq, "VID_RND "); | |
658 | ||
659 | if (pkt_dev->flags & F_SVID_RND) | |
660 | seq_printf(seq, "SVID_RND "); | |
661 | ||
222f1806 LC |
662 | seq_puts(seq, "\n"); |
663 | ||
fd29cf72 SH |
664 | /* not really stopped, more like last-running-at */ |
665 | stopped = pkt_dev->running ? ktime_now() : pkt_dev->stopped_at; | |
666 | idle = pkt_dev->idle_acc; | |
667 | do_div(idle, NSEC_PER_USEC); | |
1da177e4 | 668 | |
222f1806 | 669 | seq_printf(seq, |
fd29cf72 | 670 | "Current:\n pkts-sofar: %llu errors: %llu\n", |
222f1806 | 671 | (unsigned long long)pkt_dev->sofar, |
fd29cf72 SH |
672 | (unsigned long long)pkt_dev->errors); |
673 | ||
674 | seq_printf(seq, | |
675 | " started: %lluus stopped: %lluus idle: %lluus\n", | |
676 | (unsigned long long) ktime_to_us(pkt_dev->started_at), | |
677 | (unsigned long long) ktime_to_us(stopped), | |
678 | (unsigned long long) idle); | |
1da177e4 | 679 | |
222f1806 LC |
680 | seq_printf(seq, |
681 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
682 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
683 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 684 | |
222f1806 | 685 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 686 | char b1[128], b2[128]; |
222f1806 LC |
687 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
688 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
689 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
690 | } else | |
691 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 692 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 693 | |
222f1806 | 694 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 695 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 696 | |
45b270f8 RO |
697 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
698 | ||
222f1806 | 699 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
700 | |
701 | if (pkt_dev->result[0]) | |
222f1806 | 702 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 703 | else |
222f1806 | 704 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 705 | |
d50a6b56 | 706 | return 0; |
1da177e4 LT |
707 | } |
708 | ||
ca6549af | 709 | |
63adc6fb SH |
710 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, |
711 | __u32 *num) | |
ca6549af SW |
712 | { |
713 | int i = 0; | |
714 | *num = 0; | |
715 | ||
e71a4783 | 716 | for (; i < maxlen; i++) { |
ca6549af SW |
717 | char c; |
718 | *num <<= 4; | |
719 | if (get_user(c, &user_buffer[i])) | |
720 | return -EFAULT; | |
721 | if ((c >= '0') && (c <= '9')) | |
722 | *num |= c - '0'; | |
723 | else if ((c >= 'a') && (c <= 'f')) | |
724 | *num |= c - 'a' + 10; | |
725 | else if ((c >= 'A') && (c <= 'F')) | |
726 | *num |= c - 'A' + 10; | |
727 | else | |
728 | break; | |
729 | } | |
730 | return i; | |
731 | } | |
732 | ||
222f1806 LC |
733 | static int count_trail_chars(const char __user * user_buffer, |
734 | unsigned int maxlen) | |
1da177e4 LT |
735 | { |
736 | int i; | |
737 | ||
738 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
739 | char c; |
740 | if (get_user(c, &user_buffer[i])) | |
741 | return -EFAULT; | |
742 | switch (c) { | |
1da177e4 LT |
743 | case '\"': |
744 | case '\n': | |
745 | case '\r': | |
746 | case '\t': | |
747 | case ' ': | |
748 | case '=': | |
749 | break; | |
750 | default: | |
751 | goto done; | |
3ff50b79 | 752 | } |
1da177e4 LT |
753 | } |
754 | done: | |
755 | return i; | |
756 | } | |
757 | ||
222f1806 LC |
758 | static unsigned long num_arg(const char __user * user_buffer, |
759 | unsigned long maxlen, unsigned long *num) | |
1da177e4 LT |
760 | { |
761 | int i = 0; | |
762 | *num = 0; | |
222f1806 LC |
763 | |
764 | for (; i < maxlen; i++) { | |
765 | char c; | |
766 | if (get_user(c, &user_buffer[i])) | |
767 | return -EFAULT; | |
768 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 769 | *num *= 10; |
222f1806 | 770 | *num += c - '0'; |
1da177e4 LT |
771 | } else |
772 | break; | |
773 | } | |
774 | return i; | |
775 | } | |
776 | ||
222f1806 | 777 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 LT |
778 | { |
779 | int i = 0; | |
780 | ||
222f1806 LC |
781 | for (; i < maxlen; i++) { |
782 | char c; | |
783 | if (get_user(c, &user_buffer[i])) | |
784 | return -EFAULT; | |
785 | switch (c) { | |
1da177e4 LT |
786 | case '\"': |
787 | case '\n': | |
788 | case '\r': | |
789 | case '\t': | |
790 | case ' ': | |
791 | goto done_str; | |
792 | break; | |
793 | default: | |
794 | break; | |
3ff50b79 | 795 | } |
1da177e4 LT |
796 | } |
797 | done_str: | |
1da177e4 LT |
798 | return i; |
799 | } | |
800 | ||
ca6549af SW |
801 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
802 | { | |
803 | unsigned n = 0; | |
804 | char c; | |
805 | ssize_t i = 0; | |
806 | int len; | |
807 | ||
808 | pkt_dev->nr_labels = 0; | |
809 | do { | |
810 | __u32 tmp; | |
1ca7768c | 811 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
812 | if (len <= 0) |
813 | return len; | |
814 | pkt_dev->labels[n] = htonl(tmp); | |
815 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
816 | pkt_dev->flags |= F_MPLS_RND; | |
817 | i += len; | |
818 | if (get_user(c, &buffer[i])) | |
819 | return -EFAULT; | |
820 | i++; | |
821 | n++; | |
822 | if (n >= MAX_MPLS_LABELS) | |
823 | return -E2BIG; | |
e71a4783 | 824 | } while (c == ','); |
ca6549af SW |
825 | |
826 | pkt_dev->nr_labels = n; | |
827 | return i; | |
828 | } | |
829 | ||
222f1806 LC |
830 | static ssize_t pktgen_if_write(struct file *file, |
831 | const char __user * user_buffer, size_t count, | |
832 | loff_t * offset) | |
1da177e4 | 833 | { |
222f1806 LC |
834 | struct seq_file *seq = (struct seq_file *)file->private_data; |
835 | struct pktgen_dev *pkt_dev = seq->private; | |
1da177e4 LT |
836 | int i = 0, max, len; |
837 | char name[16], valstr[32]; | |
838 | unsigned long value = 0; | |
222f1806 LC |
839 | char *pg_result = NULL; |
840 | int tmp = 0; | |
1da177e4 | 841 | char buf[128]; |
222f1806 LC |
842 | |
843 | pg_result = &(pkt_dev->result[0]); | |
844 | ||
1da177e4 | 845 | if (count < 1) { |
25a8b254 | 846 | printk(KERN_WARNING "pktgen: wrong command format\n"); |
1da177e4 LT |
847 | return -EINVAL; |
848 | } | |
222f1806 | 849 | |
1da177e4 LT |
850 | max = count - i; |
851 | tmp = count_trail_chars(&user_buffer[i], max); | |
222f1806 | 852 | if (tmp < 0) { |
25a8b254 | 853 | printk(KERN_WARNING "pktgen: illegal format\n"); |
222f1806 | 854 | return tmp; |
1da177e4 | 855 | } |
222f1806 LC |
856 | i += tmp; |
857 | ||
1da177e4 LT |
858 | /* Read variable name */ |
859 | ||
860 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
63adc6fb | 861 | if (len < 0) |
222f1806 | 862 | return len; |
63adc6fb | 863 | |
1da177e4 | 864 | memset(name, 0, sizeof(name)); |
222f1806 | 865 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
866 | return -EFAULT; |
867 | i += len; | |
222f1806 LC |
868 | |
869 | max = count - i; | |
1da177e4 | 870 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
871 | if (len < 0) |
872 | return len; | |
873 | ||
1da177e4 LT |
874 | i += len; |
875 | ||
876 | if (debug) { | |
222f1806 LC |
877 | char tb[count + 1]; |
878 | if (copy_from_user(tb, user_buffer, count)) | |
1da177e4 | 879 | return -EFAULT; |
222f1806 | 880 | tb[count] = 0; |
25a8b254 | 881 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
882 | (unsigned long)count, tb); |
883 | } | |
1da177e4 LT |
884 | |
885 | if (!strcmp(name, "min_pkt_size")) { | |
886 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 887 | if (len < 0) |
222f1806 | 888 | return len; |
63adc6fb | 889 | |
1da177e4 | 890 | i += len; |
222f1806 LC |
891 | if (value < 14 + 20 + 8) |
892 | value = 14 + 20 + 8; | |
893 | if (value != pkt_dev->min_pkt_size) { | |
894 | pkt_dev->min_pkt_size = value; | |
895 | pkt_dev->cur_pkt_size = value; | |
896 | } | |
897 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
898 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
899 | return count; |
900 | } | |
901 | ||
222f1806 | 902 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 903 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 904 | if (len < 0) |
222f1806 | 905 | return len; |
63adc6fb | 906 | |
1da177e4 | 907 | i += len; |
222f1806 LC |
908 | if (value < 14 + 20 + 8) |
909 | value = 14 + 20 + 8; | |
910 | if (value != pkt_dev->max_pkt_size) { | |
911 | pkt_dev->max_pkt_size = value; | |
912 | pkt_dev->cur_pkt_size = value; | |
913 | } | |
914 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
915 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
916 | return count; |
917 | } | |
918 | ||
222f1806 | 919 | /* Shortcut for min = max */ |
1da177e4 LT |
920 | |
921 | if (!strcmp(name, "pkt_size")) { | |
922 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 923 | if (len < 0) |
222f1806 | 924 | return len; |
63adc6fb | 925 | |
1da177e4 | 926 | i += len; |
222f1806 LC |
927 | if (value < 14 + 20 + 8) |
928 | value = 14 + 20 + 8; | |
929 | if (value != pkt_dev->min_pkt_size) { | |
930 | pkt_dev->min_pkt_size = value; | |
931 | pkt_dev->max_pkt_size = value; | |
932 | pkt_dev->cur_pkt_size = value; | |
933 | } | |
1da177e4 LT |
934 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
935 | return count; | |
936 | } | |
937 | ||
222f1806 | 938 | if (!strcmp(name, "debug")) { |
1da177e4 | 939 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 940 | if (len < 0) |
222f1806 | 941 | return len; |
63adc6fb | 942 | |
1da177e4 | 943 | i += len; |
222f1806 | 944 | debug = value; |
1da177e4 LT |
945 | sprintf(pg_result, "OK: debug=%u", debug); |
946 | return count; | |
947 | } | |
948 | ||
222f1806 | 949 | if (!strcmp(name, "frags")) { |
1da177e4 | 950 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 951 | if (len < 0) |
222f1806 | 952 | return len; |
63adc6fb | 953 | |
1da177e4 LT |
954 | i += len; |
955 | pkt_dev->nfrags = value; | |
956 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
957 | return count; | |
958 | } | |
959 | if (!strcmp(name, "delay")) { | |
960 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 961 | if (len < 0) |
222f1806 | 962 | return len; |
63adc6fb | 963 | |
1da177e4 | 964 | i += len; |
fd29cf72 SH |
965 | if (value == 0x7FFFFFFF) |
966 | pkt_dev->delay = ULLONG_MAX; | |
967 | else | |
968 | pkt_dev->delay = (u64)value * NSEC_PER_USEC; | |
969 | ||
970 | sprintf(pg_result, "OK: delay=%llu", | |
971 | (unsigned long long) pkt_dev->delay); | |
1da177e4 LT |
972 | return count; |
973 | } | |
222f1806 | 974 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 975 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 976 | if (len < 0) |
222f1806 | 977 | return len; |
63adc6fb | 978 | |
1da177e4 | 979 | i += len; |
222f1806 LC |
980 | if (value != pkt_dev->udp_src_min) { |
981 | pkt_dev->udp_src_min = value; | |
982 | pkt_dev->cur_udp_src = value; | |
983 | } | |
1da177e4 LT |
984 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
985 | return count; | |
986 | } | |
222f1806 | 987 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 988 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 989 | if (len < 0) |
222f1806 | 990 | return len; |
63adc6fb | 991 | |
1da177e4 | 992 | i += len; |
222f1806 LC |
993 | if (value != pkt_dev->udp_dst_min) { |
994 | pkt_dev->udp_dst_min = value; | |
995 | pkt_dev->cur_udp_dst = value; | |
996 | } | |
1da177e4 LT |
997 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
998 | return count; | |
999 | } | |
222f1806 | 1000 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 1001 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1002 | if (len < 0) |
222f1806 | 1003 | return len; |
63adc6fb | 1004 | |
1da177e4 | 1005 | i += len; |
222f1806 LC |
1006 | if (value != pkt_dev->udp_src_max) { |
1007 | pkt_dev->udp_src_max = value; | |
1008 | pkt_dev->cur_udp_src = value; | |
1009 | } | |
1da177e4 LT |
1010 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
1011 | return count; | |
1012 | } | |
222f1806 | 1013 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 1014 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1015 | if (len < 0) |
222f1806 | 1016 | return len; |
63adc6fb | 1017 | |
1da177e4 | 1018 | i += len; |
222f1806 LC |
1019 | if (value != pkt_dev->udp_dst_max) { |
1020 | pkt_dev->udp_dst_max = value; | |
1021 | pkt_dev->cur_udp_dst = value; | |
1022 | } | |
1da177e4 LT |
1023 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1024 | return count; | |
1025 | } | |
1026 | if (!strcmp(name, "clone_skb")) { | |
1027 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1028 | if (len < 0) |
222f1806 | 1029 | return len; |
63adc6fb | 1030 | |
1da177e4 | 1031 | i += len; |
222f1806 LC |
1032 | pkt_dev->clone_skb = value; |
1033 | ||
1da177e4 LT |
1034 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1035 | return count; | |
1036 | } | |
1037 | if (!strcmp(name, "count")) { | |
1038 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1039 | if (len < 0) |
222f1806 | 1040 | return len; |
63adc6fb | 1041 | |
1da177e4 LT |
1042 | i += len; |
1043 | pkt_dev->count = value; | |
1044 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1045 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1046 | return count; |
1047 | } | |
1048 | if (!strcmp(name, "src_mac_count")) { | |
1049 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1050 | if (len < 0) |
222f1806 | 1051 | return len; |
63adc6fb | 1052 | |
1da177e4 LT |
1053 | i += len; |
1054 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1055 | pkt_dev->src_mac_count = value; |
1056 | pkt_dev->cur_src_mac_offset = 0; | |
1057 | } | |
1058 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1059 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1060 | return count; |
1061 | } | |
1062 | if (!strcmp(name, "dst_mac_count")) { | |
1063 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1064 | if (len < 0) |
222f1806 | 1065 | return len; |
63adc6fb | 1066 | |
1da177e4 LT |
1067 | i += len; |
1068 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1069 | pkt_dev->dst_mac_count = value; |
1070 | pkt_dev->cur_dst_mac_offset = 0; | |
1071 | } | |
1072 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1073 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1074 | return count; |
1075 | } | |
1076 | if (!strcmp(name, "flag")) { | |
222f1806 LC |
1077 | char f[32]; |
1078 | memset(f, 0, 32); | |
1da177e4 | 1079 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
63adc6fb | 1080 | if (len < 0) |
222f1806 | 1081 | return len; |
63adc6fb | 1082 | |
1da177e4 LT |
1083 | if (copy_from_user(f, &user_buffer[i], len)) |
1084 | return -EFAULT; | |
1085 | i += len; | |
222f1806 LC |
1086 | if (strcmp(f, "IPSRC_RND") == 0) |
1087 | pkt_dev->flags |= F_IPSRC_RND; | |
1088 | ||
1089 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1090 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1091 | ||
1092 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1093 | pkt_dev->flags |= F_TXSIZE_RND; | |
1094 | ||
1095 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1096 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1097 | ||
1098 | else if (strcmp(f, "IPDST_RND") == 0) | |
1099 | pkt_dev->flags |= F_IPDST_RND; | |
1100 | ||
1101 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1102 | pkt_dev->flags &= ~F_IPDST_RND; | |
1103 | ||
1104 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1105 | pkt_dev->flags |= F_UDPSRC_RND; | |
1106 | ||
1107 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1108 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1109 | ||
1110 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1111 | pkt_dev->flags |= F_UDPDST_RND; | |
1112 | ||
1113 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1114 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1115 | ||
1116 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1117 | pkt_dev->flags |= F_MACSRC_RND; | |
1118 | ||
1119 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1120 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1121 | ||
1122 | else if (strcmp(f, "MACDST_RND") == 0) | |
1123 | pkt_dev->flags |= F_MACDST_RND; | |
1124 | ||
1125 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1126 | pkt_dev->flags &= ~F_MACDST_RND; | |
1127 | ||
ca6549af SW |
1128 | else if (strcmp(f, "MPLS_RND") == 0) |
1129 | pkt_dev->flags |= F_MPLS_RND; | |
1130 | ||
1131 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1132 | pkt_dev->flags &= ~F_MPLS_RND; | |
1133 | ||
34954ddc FF |
1134 | else if (strcmp(f, "VID_RND") == 0) |
1135 | pkt_dev->flags |= F_VID_RND; | |
1136 | ||
1137 | else if (strcmp(f, "!VID_RND") == 0) | |
1138 | pkt_dev->flags &= ~F_VID_RND; | |
1139 | ||
1140 | else if (strcmp(f, "SVID_RND") == 0) | |
1141 | pkt_dev->flags |= F_SVID_RND; | |
1142 | ||
1143 | else if (strcmp(f, "!SVID_RND") == 0) | |
1144 | pkt_dev->flags &= ~F_SVID_RND; | |
1145 | ||
007a531b JHS |
1146 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1147 | pkt_dev->flags |= F_FLOW_SEQ; | |
1148 | ||
45b270f8 RO |
1149 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1150 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1151 | ||
1152 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1153 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
e6fce5b9 RO |
1154 | |
1155 | else if (strcmp(f, "QUEUE_MAP_CPU") == 0) | |
1156 | pkt_dev->flags |= F_QUEUE_MAP_CPU; | |
1157 | ||
1158 | else if (strcmp(f, "!QUEUE_MAP_CPU") == 0) | |
1159 | pkt_dev->flags &= ~F_QUEUE_MAP_CPU; | |
a553e4a6 JHS |
1160 | #ifdef CONFIG_XFRM |
1161 | else if (strcmp(f, "IPSEC") == 0) | |
1162 | pkt_dev->flags |= F_IPSEC_ON; | |
1163 | #endif | |
1164 | ||
1ca7768c FF |
1165 | else if (strcmp(f, "!IPV6") == 0) |
1166 | pkt_dev->flags &= ~F_IPV6; | |
1167 | ||
222f1806 LC |
1168 | else { |
1169 | sprintf(pg_result, | |
1170 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1171 | f, | |
1ca7768c | 1172 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
a553e4a6 | 1173 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC\n"); |
222f1806 LC |
1174 | return count; |
1175 | } | |
1da177e4 LT |
1176 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1177 | return count; | |
1178 | } | |
1179 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1180 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
63adc6fb | 1181 | if (len < 0) |
222f1806 | 1182 | return len; |
1da177e4 | 1183 | |
222f1806 | 1184 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1185 | return -EFAULT; |
222f1806 LC |
1186 | buf[len] = 0; |
1187 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1188 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1189 | strncpy(pkt_dev->dst_min, buf, len); | |
1190 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1191 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1192 | } | |
1193 | if (debug) | |
25a8b254 | 1194 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1195 | pkt_dev->dst_min); |
1196 | i += len; | |
1da177e4 LT |
1197 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1198 | return count; | |
1199 | } | |
1200 | if (!strcmp(name, "dst_max")) { | |
1201 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
63adc6fb | 1202 | if (len < 0) |
222f1806 | 1203 | return len; |
63adc6fb | 1204 | |
1da177e4 | 1205 | |
222f1806 | 1206 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1207 | return -EFAULT; |
1208 | ||
222f1806 LC |
1209 | buf[len] = 0; |
1210 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1211 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1212 | strncpy(pkt_dev->dst_max, buf, len); | |
1213 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1214 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1215 | } | |
1216 | if (debug) | |
25a8b254 | 1217 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1218 | pkt_dev->dst_max); |
1da177e4 LT |
1219 | i += len; |
1220 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1221 | return count; | |
1222 | } | |
1223 | if (!strcmp(name, "dst6")) { | |
1224 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1225 | if (len < 0) |
1226 | return len; | |
1da177e4 LT |
1227 | |
1228 | pkt_dev->flags |= F_IPV6; | |
1229 | ||
222f1806 | 1230 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1231 | return -EFAULT; |
222f1806 | 1232 | buf[len] = 0; |
1da177e4 LT |
1233 | |
1234 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1235 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1236 | |
1237 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1238 | ||
222f1806 | 1239 | if (debug) |
25a8b254 | 1240 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1241 | |
222f1806 | 1242 | i += len; |
1da177e4 LT |
1243 | sprintf(pg_result, "OK: dst6=%s", buf); |
1244 | return count; | |
1245 | } | |
1246 | if (!strcmp(name, "dst6_min")) { | |
1247 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1248 | if (len < 0) |
1249 | return len; | |
1da177e4 LT |
1250 | |
1251 | pkt_dev->flags |= F_IPV6; | |
1252 | ||
222f1806 | 1253 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1254 | return -EFAULT; |
222f1806 | 1255 | buf[len] = 0; |
1da177e4 LT |
1256 | |
1257 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1258 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1259 | |
222f1806 LC |
1260 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1261 | &pkt_dev->min_in6_daddr); | |
1262 | if (debug) | |
25a8b254 | 1263 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1264 | |
222f1806 | 1265 | i += len; |
1da177e4 LT |
1266 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1267 | return count; | |
1268 | } | |
1269 | if (!strcmp(name, "dst6_max")) { | |
1270 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1271 | if (len < 0) |
1272 | return len; | |
1da177e4 LT |
1273 | |
1274 | pkt_dev->flags |= F_IPV6; | |
1275 | ||
222f1806 | 1276 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1277 | return -EFAULT; |
222f1806 | 1278 | buf[len] = 0; |
1da177e4 LT |
1279 | |
1280 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1281 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1282 | |
222f1806 | 1283 | if (debug) |
25a8b254 | 1284 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1285 | |
222f1806 | 1286 | i += len; |
1da177e4 LT |
1287 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1288 | return count; | |
1289 | } | |
1290 | if (!strcmp(name, "src6")) { | |
1291 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1292 | if (len < 0) |
1293 | return len; | |
1da177e4 LT |
1294 | |
1295 | pkt_dev->flags |= F_IPV6; | |
1296 | ||
222f1806 | 1297 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1298 | return -EFAULT; |
222f1806 | 1299 | buf[len] = 0; |
1da177e4 LT |
1300 | |
1301 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1302 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1303 | |
1304 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1305 | ||
222f1806 | 1306 | if (debug) |
25a8b254 | 1307 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1308 | |
1309 | i += len; | |
1da177e4 LT |
1310 | sprintf(pg_result, "OK: src6=%s", buf); |
1311 | return count; | |
1312 | } | |
1313 | if (!strcmp(name, "src_min")) { | |
1314 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
63adc6fb | 1315 | if (len < 0) |
222f1806 | 1316 | return len; |
63adc6fb | 1317 | |
222f1806 | 1318 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1319 | return -EFAULT; |
222f1806 LC |
1320 | buf[len] = 0; |
1321 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1322 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1323 | strncpy(pkt_dev->src_min, buf, len); | |
1324 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1325 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1326 | } | |
1327 | if (debug) | |
25a8b254 | 1328 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1329 | pkt_dev->src_min); |
1da177e4 LT |
1330 | i += len; |
1331 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1332 | return count; | |
1333 | } | |
1334 | if (!strcmp(name, "src_max")) { | |
1335 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
63adc6fb | 1336 | if (len < 0) |
222f1806 | 1337 | return len; |
63adc6fb | 1338 | |
222f1806 | 1339 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1340 | return -EFAULT; |
222f1806 LC |
1341 | buf[len] = 0; |
1342 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1343 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1344 | strncpy(pkt_dev->src_max, buf, len); | |
1345 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1346 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1347 | } | |
1348 | if (debug) | |
25a8b254 | 1349 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1350 | pkt_dev->src_max); |
1da177e4 LT |
1351 | i += len; |
1352 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1353 | return count; | |
1354 | } | |
1355 | if (!strcmp(name, "dst_mac")) { | |
1356 | char *v = valstr; | |
f404e9a6 | 1357 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1358 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1359 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1360 | |
1da177e4 | 1361 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1362 | if (len < 0) |
222f1806 | 1363 | return len; |
63adc6fb | 1364 | |
1da177e4 | 1365 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1366 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1367 | return -EFAULT; |
1368 | i += len; | |
1369 | ||
222f1806 | 1370 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
1da177e4 LT |
1371 | if (*v >= '0' && *v <= '9') { |
1372 | *m *= 16; | |
1373 | *m += *v - '0'; | |
1374 | } | |
1375 | if (*v >= 'A' && *v <= 'F') { | |
1376 | *m *= 16; | |
1377 | *m += *v - 'A' + 10; | |
1378 | } | |
1379 | if (*v >= 'a' && *v <= 'f') { | |
1380 | *m *= 16; | |
1381 | *m += *v - 'a' + 10; | |
1382 | } | |
1383 | if (*v == ':') { | |
1384 | m++; | |
1385 | *m = 0; | |
1386 | } | |
1387 | } | |
1388 | ||
1389 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1390 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1391 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1392 | |
1da177e4 LT |
1393 | sprintf(pg_result, "OK: dstmac"); |
1394 | return count; | |
1395 | } | |
1396 | if (!strcmp(name, "src_mac")) { | |
1397 | char *v = valstr; | |
ce5d0b47 | 1398 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1399 | unsigned char *m = pkt_dev->src_mac; |
1400 | ||
ce5d0b47 AR |
1401 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1402 | ||
1da177e4 | 1403 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1404 | if (len < 0) |
222f1806 | 1405 | return len; |
63adc6fb | 1406 | |
1da177e4 | 1407 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1408 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1409 | return -EFAULT; |
1410 | i += len; | |
1411 | ||
222f1806 | 1412 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
1da177e4 LT |
1413 | if (*v >= '0' && *v <= '9') { |
1414 | *m *= 16; | |
1415 | *m += *v - '0'; | |
1416 | } | |
1417 | if (*v >= 'A' && *v <= 'F') { | |
1418 | *m *= 16; | |
1419 | *m += *v - 'A' + 10; | |
1420 | } | |
1421 | if (*v >= 'a' && *v <= 'f') { | |
1422 | *m *= 16; | |
1423 | *m += *v - 'a' + 10; | |
1424 | } | |
1425 | if (*v == ':') { | |
1426 | m++; | |
1427 | *m = 0; | |
1428 | } | |
222f1806 | 1429 | } |
1da177e4 | 1430 | |
ce5d0b47 AR |
1431 | /* Set up Src MAC */ |
1432 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1433 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1434 | ||
222f1806 | 1435 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1436 | return count; |
1437 | } | |
1438 | ||
222f1806 LC |
1439 | if (!strcmp(name, "clear_counters")) { |
1440 | pktgen_clear_counters(pkt_dev); | |
1441 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1442 | return count; | |
1443 | } | |
1da177e4 LT |
1444 | |
1445 | if (!strcmp(name, "flows")) { | |
1446 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1447 | if (len < 0) |
222f1806 | 1448 | return len; |
63adc6fb | 1449 | |
1da177e4 LT |
1450 | i += len; |
1451 | if (value > MAX_CFLOWS) | |
1452 | value = MAX_CFLOWS; | |
1453 | ||
1454 | pkt_dev->cflows = value; | |
1455 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1456 | return count; | |
1457 | } | |
1458 | ||
1459 | if (!strcmp(name, "flowlen")) { | |
1460 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1461 | if (len < 0) |
222f1806 | 1462 | return len; |
63adc6fb | 1463 | |
1da177e4 LT |
1464 | i += len; |
1465 | pkt_dev->lflow = value; | |
1466 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1467 | return count; | |
1468 | } | |
222f1806 | 1469 | |
45b270f8 RO |
1470 | if (!strcmp(name, "queue_map_min")) { |
1471 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1472 | if (len < 0) |
45b270f8 | 1473 | return len; |
63adc6fb | 1474 | |
45b270f8 RO |
1475 | i += len; |
1476 | pkt_dev->queue_map_min = value; | |
1477 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1478 | return count; | |
1479 | } | |
1480 | ||
1481 | if (!strcmp(name, "queue_map_max")) { | |
1482 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1483 | if (len < 0) |
45b270f8 | 1484 | return len; |
63adc6fb | 1485 | |
45b270f8 RO |
1486 | i += len; |
1487 | pkt_dev->queue_map_max = value; | |
1488 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1489 | return count; | |
1490 | } | |
1491 | ||
ca6549af | 1492 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1493 | unsigned n, cnt; |
1494 | ||
ca6549af | 1495 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1496 | if (len < 0) |
1497 | return len; | |
ca6549af | 1498 | i += len; |
cfcabdcc | 1499 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1500 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1501 | cnt += sprintf(pg_result + cnt, |
1502 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1503 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1504 | |
1505 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1506 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1507 | pkt_dev->svlan_id = 0xffff; | |
1508 | ||
1509 | if (debug) | |
25a8b254 | 1510 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1511 | } |
1512 | return count; | |
1513 | } | |
1514 | ||
1515 | if (!strcmp(name, "vlan_id")) { | |
1516 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1517 | if (len < 0) |
34954ddc | 1518 | return len; |
63adc6fb | 1519 | |
34954ddc FF |
1520 | i += len; |
1521 | if (value <= 4095) { | |
1522 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1523 | ||
1524 | if (debug) | |
25a8b254 | 1525 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1526 | |
1527 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1528 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1529 | |
1530 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1531 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1532 | } else { | |
1533 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1534 | pkt_dev->svlan_id = 0xffff; | |
1535 | ||
1536 | if (debug) | |
25a8b254 | 1537 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1538 | } |
1539 | return count; | |
1540 | } | |
1541 | ||
1542 | if (!strcmp(name, "vlan_p")) { | |
1543 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1544 | if (len < 0) |
34954ddc | 1545 | return len; |
63adc6fb | 1546 | |
34954ddc FF |
1547 | i += len; |
1548 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1549 | pkt_dev->vlan_p = value; | |
1550 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1551 | } else { | |
1552 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1553 | } | |
1554 | return count; | |
1555 | } | |
1556 | ||
1557 | if (!strcmp(name, "vlan_cfi")) { | |
1558 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1559 | if (len < 0) |
34954ddc | 1560 | return len; |
63adc6fb | 1561 | |
34954ddc FF |
1562 | i += len; |
1563 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1564 | pkt_dev->vlan_cfi = value; | |
1565 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1566 | } else { | |
1567 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1568 | } | |
1569 | return count; | |
1570 | } | |
1571 | ||
1572 | if (!strcmp(name, "svlan_id")) { | |
1573 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1574 | if (len < 0) |
34954ddc | 1575 | return len; |
63adc6fb | 1576 | |
34954ddc FF |
1577 | i += len; |
1578 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1579 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1580 | ||
1581 | if (debug) | |
25a8b254 | 1582 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1583 | |
1584 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1585 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1586 | |
1587 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1588 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1589 | } else { | |
1590 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1591 | pkt_dev->svlan_id = 0xffff; | |
1592 | ||
1593 | if (debug) | |
25a8b254 | 1594 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1595 | } |
1596 | return count; | |
1597 | } | |
1598 | ||
1599 | if (!strcmp(name, "svlan_p")) { | |
1600 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1601 | if (len < 0) |
34954ddc | 1602 | return len; |
63adc6fb | 1603 | |
34954ddc FF |
1604 | i += len; |
1605 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1606 | pkt_dev->svlan_p = value; | |
1607 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1608 | } else { | |
1609 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1610 | } | |
1611 | return count; | |
1612 | } | |
1613 | ||
1614 | if (!strcmp(name, "svlan_cfi")) { | |
1615 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1616 | if (len < 0) |
34954ddc | 1617 | return len; |
63adc6fb | 1618 | |
34954ddc FF |
1619 | i += len; |
1620 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1621 | pkt_dev->svlan_cfi = value; | |
1622 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1623 | } else { | |
1624 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1625 | } | |
ca6549af SW |
1626 | return count; |
1627 | } | |
1628 | ||
1ca7768c FF |
1629 | if (!strcmp(name, "tos")) { |
1630 | __u32 tmp_value = 0; | |
1631 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1632 | if (len < 0) |
1ca7768c | 1633 | return len; |
63adc6fb | 1634 | |
1ca7768c FF |
1635 | i += len; |
1636 | if (len == 2) { | |
1637 | pkt_dev->tos = tmp_value; | |
1638 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1639 | } else { | |
1640 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1641 | } | |
1642 | return count; | |
1643 | } | |
1644 | ||
1645 | if (!strcmp(name, "traffic_class")) { | |
1646 | __u32 tmp_value = 0; | |
1647 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1648 | if (len < 0) |
1ca7768c | 1649 | return len; |
63adc6fb | 1650 | |
1ca7768c FF |
1651 | i += len; |
1652 | if (len == 2) { | |
1653 | pkt_dev->traffic_class = tmp_value; | |
1654 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1655 | } else { | |
1656 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1657 | } | |
1658 | return count; | |
1659 | } | |
1660 | ||
1da177e4 LT |
1661 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1662 | return -EINVAL; | |
1663 | } | |
1664 | ||
d50a6b56 | 1665 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1666 | { |
d50a6b56 SH |
1667 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1668 | } | |
1da177e4 | 1669 | |
9a32144e | 1670 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1671 | .owner = THIS_MODULE, |
1672 | .open = pktgen_if_open, | |
1673 | .read = seq_read, | |
1674 | .llseek = seq_lseek, | |
1675 | .write = pktgen_if_write, | |
1676 | .release = single_release, | |
d50a6b56 | 1677 | }; |
1da177e4 | 1678 | |
d50a6b56 SH |
1679 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1680 | { | |
222f1806 | 1681 | struct pktgen_thread *t = seq->private; |
648fda74 | 1682 | const struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1683 | |
1684 | BUG_ON(!t); | |
1da177e4 | 1685 | |
222f1806 | 1686 | seq_printf(seq, "Running: "); |
1da177e4 | 1687 | |
222f1806 | 1688 | if_lock(t); |
c26a8016 | 1689 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1690 | if (pkt_dev->running) |
39df232f | 1691 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 | 1692 | |
222f1806 LC |
1693 | seq_printf(seq, "\nStopped: "); |
1694 | ||
c26a8016 | 1695 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1696 | if (!pkt_dev->running) |
39df232f | 1697 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 LT |
1698 | |
1699 | if (t->result[0]) | |
d50a6b56 | 1700 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1701 | else |
d50a6b56 | 1702 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1703 | |
222f1806 | 1704 | if_unlock(t); |
1da177e4 | 1705 | |
d50a6b56 | 1706 | return 0; |
1da177e4 LT |
1707 | } |
1708 | ||
d50a6b56 | 1709 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1710 | const char __user * user_buffer, |
1711 | size_t count, loff_t * offset) | |
1da177e4 | 1712 | { |
222f1806 LC |
1713 | struct seq_file *seq = (struct seq_file *)file->private_data; |
1714 | struct pktgen_thread *t = seq->private; | |
1da177e4 LT |
1715 | int i = 0, max, len, ret; |
1716 | char name[40]; | |
222f1806 | 1717 | char *pg_result; |
d50a6b56 | 1718 | |
1da177e4 | 1719 | if (count < 1) { |
222f1806 | 1720 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1721 | return -EINVAL; |
1722 | } | |
d50a6b56 | 1723 | |
1da177e4 | 1724 | max = count - i; |
222f1806 LC |
1725 | len = count_trail_chars(&user_buffer[i], max); |
1726 | if (len < 0) | |
d50a6b56 SH |
1727 | return len; |
1728 | ||
1da177e4 | 1729 | i += len; |
d50a6b56 | 1730 | |
1da177e4 LT |
1731 | /* Read variable name */ |
1732 | ||
1733 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1734 | if (len < 0) |
d50a6b56 | 1735 | return len; |
222f1806 | 1736 | |
1da177e4 LT |
1737 | memset(name, 0, sizeof(name)); |
1738 | if (copy_from_user(name, &user_buffer[i], len)) | |
1739 | return -EFAULT; | |
1740 | i += len; | |
d50a6b56 | 1741 | |
222f1806 | 1742 | max = count - i; |
1da177e4 | 1743 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1744 | if (len < 0) |
d50a6b56 SH |
1745 | return len; |
1746 | ||
1da177e4 LT |
1747 | i += len; |
1748 | ||
d50a6b56 | 1749 | if (debug) |
25a8b254 DM |
1750 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1751 | name, (unsigned long)count); | |
1da177e4 | 1752 | |
222f1806 | 1753 | if (!t) { |
25a8b254 | 1754 | printk(KERN_ERR "pktgen: ERROR: No thread\n"); |
1da177e4 LT |
1755 | ret = -EINVAL; |
1756 | goto out; | |
1757 | } | |
1758 | ||
1759 | pg_result = &(t->result[0]); | |
1760 | ||
222f1806 LC |
1761 | if (!strcmp(name, "add_device")) { |
1762 | char f[32]; | |
1763 | memset(f, 0, 32); | |
1da177e4 | 1764 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1765 | if (len < 0) { |
1766 | ret = len; | |
1da177e4 LT |
1767 | goto out; |
1768 | } | |
222f1806 | 1769 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1770 | return -EFAULT; |
1771 | i += len; | |
6146e6a4 | 1772 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1773 | pktgen_add_device(t, f); |
6146e6a4 | 1774 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1775 | ret = count; |
1776 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1777 | goto out; |
1778 | } | |
1779 | ||
222f1806 | 1780 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1781 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1782 | t->control |= T_REMDEVALL; |
6146e6a4 | 1783 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1784 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1785 | ret = count; |
222f1806 | 1786 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1787 | goto out; |
1788 | } | |
1789 | ||
222f1806 | 1790 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1791 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1792 | ret = count; |
1da177e4 LT |
1793 | goto out; |
1794 | } | |
1795 | ||
1796 | ret = -EINVAL; | |
222f1806 | 1797 | out: |
1da177e4 LT |
1798 | return ret; |
1799 | } | |
1800 | ||
d50a6b56 | 1801 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1802 | { |
d50a6b56 | 1803 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1804 | } |
1805 | ||
9a32144e | 1806 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1807 | .owner = THIS_MODULE, |
1808 | .open = pktgen_thread_open, | |
1809 | .read = seq_read, | |
1810 | .llseek = seq_lseek, | |
1811 | .write = pktgen_thread_write, | |
1812 | .release = single_release, | |
d50a6b56 | 1813 | }; |
1da177e4 LT |
1814 | |
1815 | /* Think find or remove for NN */ | |
222f1806 | 1816 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1817 | { |
1818 | struct pktgen_thread *t; | |
1819 | struct pktgen_dev *pkt_dev = NULL; | |
1820 | ||
cdcdbe0b | 1821 | list_for_each_entry(t, &pktgen_threads, th_list) { |
1da177e4 LT |
1822 | pkt_dev = pktgen_find_dev(t, ifname); |
1823 | if (pkt_dev) { | |
222f1806 LC |
1824 | if (remove) { |
1825 | if_lock(t); | |
1826 | pkt_dev->removal_mark = 1; | |
1827 | t->control |= T_REMDEV; | |
1828 | if_unlock(t); | |
1829 | } | |
1da177e4 LT |
1830 | break; |
1831 | } | |
1da177e4 | 1832 | } |
222f1806 | 1833 | return pkt_dev; |
1da177e4 LT |
1834 | } |
1835 | ||
95ed63f7 AK |
1836 | /* |
1837 | * mark a device for removal | |
1838 | */ | |
39df232f | 1839 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1840 | { |
1841 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1842 | const int max_tries = 10, msec_per_try = 125; |
1843 | int i = 0; | |
95ed63f7 | 1844 | |
6146e6a4 | 1845 | mutex_lock(&pktgen_thread_lock); |
25c4e53a | 1846 | pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname); |
95ed63f7 | 1847 | |
222f1806 | 1848 | while (1) { |
95ed63f7 AK |
1849 | |
1850 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1851 | if (pkt_dev == NULL) |
1852 | break; /* success */ | |
95ed63f7 | 1853 | |
6146e6a4 | 1854 | mutex_unlock(&pktgen_thread_lock); |
25c4e53a SH |
1855 | pr_debug("pktgen: pktgen_mark_device waiting for %s " |
1856 | "to disappear....\n", ifname); | |
95ed63f7 | 1857 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1858 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1859 | |
1860 | if (++i >= max_tries) { | |
25a8b254 DM |
1861 | printk(KERN_ERR "pktgen_mark_device: timed out after " |
1862 | "waiting %d msec for device %s to be removed\n", | |
222f1806 | 1863 | msec_per_try * i, ifname); |
95ed63f7 AK |
1864 | break; |
1865 | } | |
1866 | ||
1867 | } | |
1868 | ||
6146e6a4 | 1869 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1870 | } |
95ed63f7 | 1871 | |
39df232f SH |
1872 | static void pktgen_change_name(struct net_device *dev) |
1873 | { | |
1874 | struct pktgen_thread *t; | |
1875 | ||
1876 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1877 | struct pktgen_dev *pkt_dev; | |
1878 | ||
1879 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1880 | if (pkt_dev->odev != dev) | |
1881 | continue; | |
1882 | ||
1883 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1884 | ||
1885 | pkt_dev->entry = create_proc_entry(dev->name, 0600, | |
1886 | pg_proc_dir); | |
1887 | if (!pkt_dev->entry) | |
1888 | printk(KERN_ERR "pktgen: can't move proc " | |
1889 | " entry for '%s'\n", dev->name); | |
1890 | break; | |
1891 | } | |
1892 | } | |
1da177e4 LT |
1893 | } |
1894 | ||
222f1806 LC |
1895 | static int pktgen_device_event(struct notifier_block *unused, |
1896 | unsigned long event, void *ptr) | |
1da177e4 | 1897 | { |
39df232f | 1898 | struct net_device *dev = ptr; |
1da177e4 | 1899 | |
721499e8 | 1900 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
1901 | return NOTIFY_DONE; |
1902 | ||
1da177e4 LT |
1903 | /* It is OK that we do not hold the group lock right now, |
1904 | * as we run under the RTNL lock. | |
1905 | */ | |
1906 | ||
1907 | switch (event) { | |
39df232f SH |
1908 | case NETDEV_CHANGENAME: |
1909 | pktgen_change_name(dev); | |
1da177e4 | 1910 | break; |
222f1806 | 1911 | |
1da177e4 | 1912 | case NETDEV_UNREGISTER: |
222f1806 | 1913 | pktgen_mark_device(dev->name); |
1da177e4 | 1914 | break; |
3ff50b79 | 1915 | } |
1da177e4 LT |
1916 | |
1917 | return NOTIFY_DONE; | |
1918 | } | |
1919 | ||
63adc6fb SH |
1920 | static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev, |
1921 | const char *ifname) | |
e6fce5b9 RO |
1922 | { |
1923 | char b[IFNAMSIZ+5]; | |
1924 | int i = 0; | |
1925 | ||
63adc6fb SH |
1926 | for (i = 0; ifname[i] != '@'; i++) { |
1927 | if (i == IFNAMSIZ) | |
e6fce5b9 RO |
1928 | break; |
1929 | ||
1930 | b[i] = ifname[i]; | |
1931 | } | |
1932 | b[i] = 0; | |
1933 | ||
1934 | return dev_get_by_name(&init_net, b); | |
1935 | } | |
1936 | ||
1937 | ||
1da177e4 LT |
1938 | /* Associate pktgen_dev with a device. */ |
1939 | ||
39df232f | 1940 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 1941 | { |
1da177e4 | 1942 | struct net_device *odev; |
39df232f | 1943 | int err; |
1da177e4 LT |
1944 | |
1945 | /* Clean old setups */ | |
1da177e4 LT |
1946 | if (pkt_dev->odev) { |
1947 | dev_put(pkt_dev->odev); | |
222f1806 LC |
1948 | pkt_dev->odev = NULL; |
1949 | } | |
1da177e4 | 1950 | |
e6fce5b9 | 1951 | odev = pktgen_dev_get_by_name(pkt_dev, ifname); |
1da177e4 | 1952 | if (!odev) { |
25a8b254 | 1953 | printk(KERN_ERR "pktgen: no such netdevice: \"%s\"\n", ifname); |
39df232f | 1954 | return -ENODEV; |
1da177e4 | 1955 | } |
39df232f | 1956 | |
1da177e4 | 1957 | if (odev->type != ARPHRD_ETHER) { |
25a8b254 | 1958 | printk(KERN_ERR "pktgen: not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
1959 | err = -EINVAL; |
1960 | } else if (!netif_running(odev)) { | |
25a8b254 | 1961 | printk(KERN_ERR "pktgen: device is down: \"%s\"\n", ifname); |
39df232f SH |
1962 | err = -ENETDOWN; |
1963 | } else { | |
1964 | pkt_dev->odev = odev; | |
1965 | return 0; | |
1da177e4 | 1966 | } |
1da177e4 | 1967 | |
1da177e4 | 1968 | dev_put(odev); |
39df232f | 1969 | return err; |
1da177e4 LT |
1970 | } |
1971 | ||
1972 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
1973 | * structure to have the right information to create/send packets | |
1974 | */ | |
1975 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
1976 | { | |
64c00d81 AG |
1977 | int ntxq; |
1978 | ||
222f1806 | 1979 | if (!pkt_dev->odev) { |
25a8b254 DM |
1980 | printk(KERN_ERR "pktgen: ERROR: pkt_dev->odev == NULL in " |
1981 | "setup_inject.\n"); | |
222f1806 LC |
1982 | sprintf(pkt_dev->result, |
1983 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
1984 | return; | |
1985 | } | |
1986 | ||
64c00d81 AG |
1987 | /* make sure that we don't pick a non-existing transmit queue */ |
1988 | ntxq = pkt_dev->odev->real_num_tx_queues; | |
bfdbc0ac | 1989 | |
64c00d81 AG |
1990 | if (ntxq <= pkt_dev->queue_map_min) { |
1991 | printk(KERN_WARNING "pktgen: WARNING: Requested " | |
88271660 JB |
1992 | "queue_map_min (zero-based) (%d) exceeds valid range " |
1993 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
63adc6fb | 1994 | pkt_dev->queue_map_min, (ntxq ?: 1) - 1, ntxq, |
88271660 | 1995 | pkt_dev->odev->name); |
64c00d81 AG |
1996 | pkt_dev->queue_map_min = ntxq - 1; |
1997 | } | |
88271660 | 1998 | if (pkt_dev->queue_map_max >= ntxq) { |
64c00d81 | 1999 | printk(KERN_WARNING "pktgen: WARNING: Requested " |
88271660 JB |
2000 | "queue_map_max (zero-based) (%d) exceeds valid range " |
2001 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
63adc6fb | 2002 | pkt_dev->queue_map_max, (ntxq ?: 1) - 1, ntxq, |
88271660 | 2003 | pkt_dev->odev->name); |
64c00d81 AG |
2004 | pkt_dev->queue_map_max = ntxq - 1; |
2005 | } | |
2006 | ||
222f1806 | 2007 | /* Default to the interface's mac if not explicitly set. */ |
1da177e4 | 2008 | |
f404e9a6 | 2009 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 2010 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 2011 | |
222f1806 | 2012 | /* Set up Dest MAC */ |
f404e9a6 | 2013 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 2014 | |
222f1806 LC |
2015 | /* Set up pkt size */ |
2016 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
2017 | ||
2018 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 2019 | /* |
4ec93edb | 2020 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
2021 | * gets exported |
2022 | */ | |
2023 | ||
2024 | #ifdef NOTNOW | |
222f1806 | 2025 | int i, set = 0, err = 1; |
1da177e4 LT |
2026 | struct inet6_dev *idev; |
2027 | ||
222f1806 LC |
2028 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
2029 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
2030 | set = 1; |
2031 | break; | |
2032 | } | |
2033 | ||
222f1806 LC |
2034 | if (!set) { |
2035 | ||
1da177e4 LT |
2036 | /* |
2037 | * Use linklevel address if unconfigured. | |
2038 | * | |
2039 | * use ipv6_get_lladdr if/when it's get exported | |
2040 | */ | |
2041 | ||
8814c4b5 | 2042 | rcu_read_lock(); |
63adc6fb SH |
2043 | idev = __in6_dev_get(pkt_dev->odev); |
2044 | if (idev) { | |
1da177e4 LT |
2045 | struct inet6_ifaddr *ifp; |
2046 | ||
2047 | read_lock_bh(&idev->lock); | |
222f1806 LC |
2048 | for (ifp = idev->addr_list; ifp; |
2049 | ifp = ifp->if_next) { | |
2050 | if (ifp->scope == IFA_LINK | |
2051 | && !(ifp-> | |
2052 | flags & IFA_F_TENTATIVE)) { | |
2053 | ipv6_addr_copy(&pkt_dev-> | |
2054 | cur_in6_saddr, | |
2055 | &ifp->addr); | |
1da177e4 LT |
2056 | err = 0; |
2057 | break; | |
2058 | } | |
2059 | } | |
2060 | read_unlock_bh(&idev->lock); | |
2061 | } | |
8814c4b5 | 2062 | rcu_read_unlock(); |
222f1806 | 2063 | if (err) |
25a8b254 DM |
2064 | printk(KERN_ERR "pktgen: ERROR: IPv6 link " |
2065 | "address not availble.\n"); | |
1da177e4 LT |
2066 | } |
2067 | #endif | |
222f1806 | 2068 | } else { |
1da177e4 LT |
2069 | pkt_dev->saddr_min = 0; |
2070 | pkt_dev->saddr_max = 0; | |
2071 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2072 | |
2073 | struct in_device *in_dev; | |
1da177e4 LT |
2074 | |
2075 | rcu_read_lock(); | |
e5ed6399 | 2076 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2077 | if (in_dev) { |
2078 | if (in_dev->ifa_list) { | |
222f1806 LC |
2079 | pkt_dev->saddr_min = |
2080 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2081 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2082 | } | |
1da177e4 LT |
2083 | } |
2084 | rcu_read_unlock(); | |
222f1806 | 2085 | } else { |
1da177e4 LT |
2086 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2087 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2088 | } | |
2089 | ||
2090 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2091 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2092 | } | |
222f1806 LC |
2093 | /* Initialize current values. */ |
2094 | pkt_dev->cur_dst_mac_offset = 0; | |
2095 | pkt_dev->cur_src_mac_offset = 0; | |
2096 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2097 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2098 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2099 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2100 | pkt_dev->nflows = 0; |
2101 | } | |
2102 | ||
fd29cf72 SH |
2103 | |
2104 | static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until) | |
2105 | { | |
2bc481cf SH |
2106 | ktime_t start; |
2107 | s32 remaining; | |
2108 | struct hrtimer_sleeper t; | |
2109 | ||
2110 | hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); | |
2111 | hrtimer_set_expires(&t.timer, spin_until); | |
2112 | ||
2113 | remaining = ktime_to_us(hrtimer_expires_remaining(&t.timer)); | |
2114 | if (remaining <= 0) | |
2115 | return; | |
2116 | ||
2117 | start = ktime_now(); | |
2118 | if (remaining < 100) | |
2119 | udelay(remaining); /* really small just spin */ | |
2120 | else { | |
2121 | /* see do_nanosleep */ | |
2122 | hrtimer_init_sleeper(&t, current); | |
2123 | do { | |
2124 | set_current_state(TASK_INTERRUPTIBLE); | |
2125 | hrtimer_start_expires(&t.timer, HRTIMER_MODE_ABS); | |
2126 | if (!hrtimer_active(&t.timer)) | |
2127 | t.task = NULL; | |
2128 | ||
2129 | if (likely(t.task)) | |
1da177e4 | 2130 | schedule(); |
1da177e4 | 2131 | |
2bc481cf SH |
2132 | hrtimer_cancel(&t.timer); |
2133 | } while (t.task && pkt_dev->running && !signal_pending(current)); | |
2134 | __set_current_state(TASK_RUNNING); | |
1da177e4 | 2135 | } |
2bc481cf | 2136 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), start)); |
1da177e4 LT |
2137 | } |
2138 | ||
16dab72f JHS |
2139 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2140 | { | |
a553e4a6 | 2141 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2142 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2143 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2144 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2145 | } | |
2146 | ||
648fda74 | 2147 | static inline int f_seen(const struct pktgen_dev *pkt_dev, int flow) |
007a531b | 2148 | { |
648fda74 | 2149 | return !!(pkt_dev->flows[flow].flags & F_INIT); |
007a531b JHS |
2150 | } |
2151 | ||
2152 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2153 | { | |
2154 | int flow = pkt_dev->curfl; | |
2155 | ||
2156 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2157 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2158 | /* reset time */ | |
2159 | pkt_dev->flows[flow].count = 0; | |
1211a645 | 2160 | pkt_dev->flows[flow].flags = 0; |
007a531b JHS |
2161 | pkt_dev->curfl += 1; |
2162 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2163 | pkt_dev->curfl = 0; /*reset */ | |
2164 | } | |
2165 | } else { | |
2166 | flow = random32() % pkt_dev->cflows; | |
1211a645 | 2167 | pkt_dev->curfl = flow; |
007a531b | 2168 | |
1211a645 | 2169 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) { |
007a531b | 2170 | pkt_dev->flows[flow].count = 0; |
1211a645 RO |
2171 | pkt_dev->flows[flow].flags = 0; |
2172 | } | |
007a531b JHS |
2173 | } |
2174 | ||
2175 | return pkt_dev->curfl; | |
2176 | } | |
2177 | ||
a553e4a6 JHS |
2178 | |
2179 | #ifdef CONFIG_XFRM | |
2180 | /* If there was already an IPSEC SA, we keep it as is, else | |
2181 | * we go look for it ... | |
2182 | */ | |
fea1ab0f | 2183 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2184 | { |
2185 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2186 | if (!x) { | |
2187 | /*slow path: we dont already have xfrm_state*/ | |
5447c5e4 AD |
2188 | x = xfrm_stateonly_find(&init_net, |
2189 | (xfrm_address_t *)&pkt_dev->cur_daddr, | |
a553e4a6 JHS |
2190 | (xfrm_address_t *)&pkt_dev->cur_saddr, |
2191 | AF_INET, | |
2192 | pkt_dev->ipsmode, | |
2193 | pkt_dev->ipsproto, 0); | |
2194 | if (x) { | |
2195 | pkt_dev->flows[flow].x = x; | |
2196 | set_pkt_overhead(pkt_dev); | |
63adc6fb | 2197 | pkt_dev->pkt_overhead += x->props.header_len; |
a553e4a6 JHS |
2198 | } |
2199 | ||
2200 | } | |
2201 | } | |
2202 | #endif | |
fd2ea0a7 DM |
2203 | static void set_cur_queue_map(struct pktgen_dev *pkt_dev) |
2204 | { | |
e6fce5b9 RO |
2205 | |
2206 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) | |
2207 | pkt_dev->cur_queue_map = smp_processor_id(); | |
2208 | ||
2209 | else if (pkt_dev->queue_map_min < pkt_dev->queue_map_max) { | |
fd2ea0a7 DM |
2210 | __u16 t; |
2211 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2212 | t = random32() % | |
2213 | (pkt_dev->queue_map_max - | |
2214 | pkt_dev->queue_map_min + 1) | |
2215 | + pkt_dev->queue_map_min; | |
2216 | } else { | |
2217 | t = pkt_dev->cur_queue_map + 1; | |
2218 | if (t > pkt_dev->queue_map_max) | |
2219 | t = pkt_dev->queue_map_min; | |
2220 | } | |
2221 | pkt_dev->cur_queue_map = t; | |
2222 | } | |
bfdbc0ac | 2223 | pkt_dev->cur_queue_map = pkt_dev->cur_queue_map % pkt_dev->odev->real_num_tx_queues; |
fd2ea0a7 DM |
2224 | } |
2225 | ||
1da177e4 LT |
2226 | /* Increment/randomize headers according to flags and current values |
2227 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2228 | */ | |
222f1806 LC |
2229 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2230 | { | |
2231 | __u32 imn; | |
2232 | __u32 imx; | |
2233 | int flow = 0; | |
1da177e4 | 2234 | |
007a531b JHS |
2235 | if (pkt_dev->cflows) |
2236 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2237 | |
2238 | /* Deal with source MAC */ | |
222f1806 LC |
2239 | if (pkt_dev->src_mac_count > 1) { |
2240 | __u32 mc; | |
2241 | __u32 tmp; | |
2242 | ||
2243 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2244 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2245 | else { |
2246 | mc = pkt_dev->cur_src_mac_offset++; | |
ff2a79a5 | 2247 | if (pkt_dev->cur_src_mac_offset >= |
222f1806 LC |
2248 | pkt_dev->src_mac_count) |
2249 | pkt_dev->cur_src_mac_offset = 0; | |
2250 | } | |
2251 | ||
2252 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2253 | pkt_dev->hh[11] = tmp; | |
2254 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2255 | pkt_dev->hh[10] = tmp; | |
2256 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2257 | pkt_dev->hh[9] = tmp; | |
2258 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2259 | pkt_dev->hh[8] = tmp; | |
2260 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2261 | pkt_dev->hh[7] = tmp; | |
2262 | } | |
2263 | ||
2264 | /* Deal with Destination MAC */ | |
2265 | if (pkt_dev->dst_mac_count > 1) { | |
2266 | __u32 mc; | |
2267 | __u32 tmp; | |
2268 | ||
2269 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2270 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2271 | |
2272 | else { | |
2273 | mc = pkt_dev->cur_dst_mac_offset++; | |
ff2a79a5 | 2274 | if (pkt_dev->cur_dst_mac_offset >= |
222f1806 LC |
2275 | pkt_dev->dst_mac_count) { |
2276 | pkt_dev->cur_dst_mac_offset = 0; | |
2277 | } | |
2278 | } | |
2279 | ||
2280 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2281 | pkt_dev->hh[5] = tmp; | |
2282 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2283 | pkt_dev->hh[4] = tmp; | |
2284 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2285 | pkt_dev->hh[3] = tmp; | |
2286 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2287 | pkt_dev->hh[2] = tmp; | |
2288 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2289 | pkt_dev->hh[1] = tmp; | |
2290 | } | |
2291 | ||
ca6549af SW |
2292 | if (pkt_dev->flags & F_MPLS_RND) { |
2293 | unsigned i; | |
e71a4783 | 2294 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2295 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2296 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2297 | ((__force __be32)random32() & |
ca6549af SW |
2298 | htonl(0x000fffff)); |
2299 | } | |
2300 | ||
34954ddc | 2301 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2302 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2303 | } |
2304 | ||
2305 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2306 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2307 | } |
2308 | ||
222f1806 LC |
2309 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2310 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2311 | pkt_dev->cur_udp_src = random32() % |
2312 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2313 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2314 | |
2315 | else { | |
1da177e4 LT |
2316 | pkt_dev->cur_udp_src++; |
2317 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2318 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2319 | } |
2320 | } | |
2321 | ||
2322 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2323 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2324 | pkt_dev->cur_udp_dst = random32() % |
2325 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2326 | + pkt_dev->udp_dst_min; | |
222f1806 | 2327 | } else { |
1da177e4 | 2328 | pkt_dev->cur_udp_dst++; |
222f1806 | 2329 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2330 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2331 | } |
2332 | } | |
1da177e4 LT |
2333 | |
2334 | if (!(pkt_dev->flags & F_IPV6)) { | |
2335 | ||
63adc6fb SH |
2336 | imn = ntohl(pkt_dev->saddr_min); |
2337 | imx = ntohl(pkt_dev->saddr_max); | |
2338 | if (imn < imx) { | |
1da177e4 | 2339 | __u32 t; |
222f1806 | 2340 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2341 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2342 | else { |
2343 | t = ntohl(pkt_dev->cur_saddr); | |
2344 | t++; | |
63adc6fb | 2345 | if (t > imx) |
1da177e4 | 2346 | t = imn; |
63adc6fb | 2347 | |
1da177e4 LT |
2348 | } |
2349 | pkt_dev->cur_saddr = htonl(t); | |
2350 | } | |
222f1806 | 2351 | |
007a531b | 2352 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2353 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2354 | } else { | |
252e3346 AV |
2355 | imn = ntohl(pkt_dev->daddr_min); |
2356 | imx = ntohl(pkt_dev->daddr_max); | |
2357 | if (imn < imx) { | |
1da177e4 | 2358 | __u32 t; |
252e3346 | 2359 | __be32 s; |
1da177e4 LT |
2360 | if (pkt_dev->flags & F_IPDST_RND) { |
2361 | ||
5fa6fc76 | 2362 | t = random32() % (imx - imn) + imn; |
252e3346 | 2363 | s = htonl(t); |
1da177e4 | 2364 | |
21cf2253 JP |
2365 | while (ipv4_is_loopback(s) || |
2366 | ipv4_is_multicast(s) || | |
1e637c74 | 2367 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2368 | ipv4_is_zeronet(s) || |
2369 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2370 | t = random32() % (imx - imn) + imn; |
252e3346 | 2371 | s = htonl(t); |
1da177e4 | 2372 | } |
252e3346 AV |
2373 | pkt_dev->cur_daddr = s; |
2374 | } else { | |
1da177e4 LT |
2375 | t = ntohl(pkt_dev->cur_daddr); |
2376 | t++; | |
2377 | if (t > imx) { | |
2378 | t = imn; | |
2379 | } | |
2380 | pkt_dev->cur_daddr = htonl(t); | |
2381 | } | |
2382 | } | |
222f1806 | 2383 | if (pkt_dev->cflows) { |
007a531b | 2384 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2385 | pkt_dev->flows[flow].cur_daddr = |
2386 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2387 | #ifdef CONFIG_XFRM |
2388 | if (pkt_dev->flags & F_IPSEC_ON) | |
2389 | get_ipsec_sa(pkt_dev, flow); | |
2390 | #endif | |
1da177e4 LT |
2391 | pkt_dev->nflows++; |
2392 | } | |
2393 | } | |
222f1806 LC |
2394 | } else { /* IPV6 * */ |
2395 | ||
2396 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2397 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2398 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2399 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2400 | else { |
2401 | int i; | |
2402 | ||
2403 | /* Only random destinations yet */ | |
2404 | ||
222f1806 | 2405 | for (i = 0; i < 4; i++) { |
1da177e4 | 2406 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2407 | (((__force __be32)random32() | |
222f1806 LC |
2408 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2409 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2410 | } |
222f1806 | 2411 | } |
1da177e4 LT |
2412 | } |
2413 | ||
222f1806 LC |
2414 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2415 | __u32 t; | |
2416 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2417 | t = random32() % |
2418 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2419 | + pkt_dev->min_pkt_size; | |
222f1806 | 2420 | } else { |
1da177e4 | 2421 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2422 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2423 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2424 | } |
2425 | pkt_dev->cur_pkt_size = t; | |
2426 | } | |
1da177e4 | 2427 | |
fd2ea0a7 | 2428 | set_cur_queue_map(pkt_dev); |
45b270f8 | 2429 | |
1da177e4 LT |
2430 | pkt_dev->flows[flow].count++; |
2431 | } | |
2432 | ||
a553e4a6 JHS |
2433 | |
2434 | #ifdef CONFIG_XFRM | |
2435 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2436 | { | |
2437 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2438 | int err = 0; | |
2439 | struct iphdr *iph; | |
2440 | ||
2441 | if (!x) | |
2442 | return 0; | |
2443 | /* XXX: we dont support tunnel mode for now until | |
2444 | * we resolve the dst issue */ | |
2445 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2446 | return 0; | |
2447 | ||
2448 | spin_lock(&x->lock); | |
2449 | iph = ip_hdr(skb); | |
2450 | ||
13996378 | 2451 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2452 | if (err) |
2453 | goto error; | |
2454 | err = x->type->output(x, skb); | |
2455 | if (err) | |
2456 | goto error; | |
2457 | ||
63adc6fb | 2458 | x->curlft.bytes += skb->len; |
a553e4a6 | 2459 | x->curlft.packets++; |
a553e4a6 JHS |
2460 | error: |
2461 | spin_unlock(&x->lock); | |
2462 | return err; | |
2463 | } | |
2464 | ||
475ac1e4 | 2465 | static void free_SAs(struct pktgen_dev *pkt_dev) |
a553e4a6 JHS |
2466 | { |
2467 | if (pkt_dev->cflows) { | |
2468 | /* let go of the SAs if we have them */ | |
2469 | int i = 0; | |
5b5f792a | 2470 | for (; i < pkt_dev->cflows; i++) { |
a553e4a6 JHS |
2471 | struct xfrm_state *x = pkt_dev->flows[i].x; |
2472 | if (x) { | |
2473 | xfrm_state_put(x); | |
2474 | pkt_dev->flows[i].x = NULL; | |
2475 | } | |
2476 | } | |
2477 | } | |
2478 | } | |
2479 | ||
475ac1e4 | 2480 | static int process_ipsec(struct pktgen_dev *pkt_dev, |
a553e4a6 JHS |
2481 | struct sk_buff *skb, __be16 protocol) |
2482 | { | |
2483 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2484 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2485 | int nhead = 0; | |
2486 | if (x) { | |
2487 | int ret; | |
2488 | __u8 *eth; | |
2489 | nhead = x->props.header_len - skb_headroom(skb); | |
63adc6fb | 2490 | if (nhead > 0) { |
a553e4a6 JHS |
2491 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); |
2492 | if (ret < 0) { | |
25a8b254 | 2493 | printk(KERN_ERR "Error expanding " |
63adc6fb | 2494 | "ipsec packet %d\n", ret); |
b4bb4ac8 | 2495 | goto err; |
a553e4a6 JHS |
2496 | } |
2497 | } | |
2498 | ||
2499 | /* ipsec is not expecting ll header */ | |
2500 | skb_pull(skb, ETH_HLEN); | |
2501 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2502 | if (ret) { | |
25a8b254 | 2503 | printk(KERN_ERR "Error creating ipsec " |
63adc6fb | 2504 | "packet %d\n", ret); |
b4bb4ac8 | 2505 | goto err; |
a553e4a6 JHS |
2506 | } |
2507 | /* restore ll */ | |
2508 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2509 | memcpy(eth, pkt_dev->hh, 12); | |
63adc6fb | 2510 | *(u16 *) ð[12] = protocol; |
a553e4a6 JHS |
2511 | } |
2512 | } | |
2513 | return 1; | |
b4bb4ac8 IJ |
2514 | err: |
2515 | kfree_skb(skb); | |
2516 | return 0; | |
a553e4a6 JHS |
2517 | } |
2518 | #endif | |
2519 | ||
ca6549af SW |
2520 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2521 | { | |
2522 | unsigned i; | |
63adc6fb | 2523 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af | 2524 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
63adc6fb | 2525 | |
ca6549af SW |
2526 | mpls--; |
2527 | *mpls |= MPLS_STACK_BOTTOM; | |
2528 | } | |
2529 | ||
0f37c605 AV |
2530 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2531 | unsigned int prio) | |
2532 | { | |
2533 | return htons(id | (cfi << 12) | (prio << 13)); | |
2534 | } | |
2535 | ||
222f1806 LC |
2536 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2537 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2538 | { |
2539 | struct sk_buff *skb = NULL; | |
2540 | __u8 *eth; | |
2541 | struct udphdr *udph; | |
2542 | int datalen, iplen; | |
2543 | struct iphdr *iph; | |
222f1806 | 2544 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2545 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2546 | __be32 *mpls; |
34954ddc FF |
2547 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2548 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2549 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2550 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2551 | u16 queue_map; |
ca6549af SW |
2552 | |
2553 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2554 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2555 | |
34954ddc | 2556 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2557 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2558 | |
64053bee RO |
2559 | /* Update any of the values, used when we're incrementing various |
2560 | * fields. | |
2561 | */ | |
fd2ea0a7 | 2562 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2563 | mod_cur_headers(pkt_dev); |
2564 | ||
7ac5459e | 2565 | datalen = (odev->hard_header_len + 16) & ~0xf; |
e470757d SH |
2566 | skb = __netdev_alloc_skb(odev, |
2567 | pkt_dev->cur_pkt_size + 64 | |
2568 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
2569 | if (!skb) { |
2570 | sprintf(pkt_dev->result, "No memory"); | |
2571 | return NULL; | |
2572 | } | |
2573 | ||
7ac5459e | 2574 | skb_reserve(skb, datalen); |
1da177e4 LT |
2575 | |
2576 | /* Reserve for ethernet and IP header */ | |
2577 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2578 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2579 | if (pkt_dev->nr_labels) | |
2580 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2581 | |
2582 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2583 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2584 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2585 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2586 | pkt_dev->svlan_cfi, | |
2587 | pkt_dev->svlan_p); | |
34954ddc | 2588 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2589 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2590 | } |
2591 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2592 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2593 | pkt_dev->vlan_cfi, | |
2594 | pkt_dev->vlan_p); | |
34954ddc | 2595 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2596 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2597 | } |
2598 | ||
27a884dc | 2599 | skb->network_header = skb->tail; |
b0e380b1 | 2600 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2601 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2602 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2603 | iph = ip_hdr(skb); |
2604 | udph = udp_hdr(skb); | |
1da177e4 | 2605 | |
1da177e4 | 2606 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2607 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2608 | |
ca6549af SW |
2609 | /* Eth + IPh + UDPh + mpls */ |
2610 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2611 | pkt_dev->pkt_overhead; |
222f1806 | 2612 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2613 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2614 | |
1da177e4 LT |
2615 | udph->source = htons(pkt_dev->cur_udp_src); |
2616 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2617 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2618 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2619 | |
2620 | iph->ihl = 5; | |
2621 | iph->version = 4; | |
2622 | iph->ttl = 32; | |
1ca7768c | 2623 | iph->tos = pkt_dev->tos; |
222f1806 | 2624 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2625 | iph->saddr = pkt_dev->cur_saddr; |
2626 | iph->daddr = pkt_dev->cur_daddr; | |
2627 | iph->frag_off = 0; | |
2628 | iplen = 20 + 8 + datalen; | |
2629 | iph->tot_len = htons(iplen); | |
2630 | iph->check = 0; | |
222f1806 | 2631 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2632 | skb->protocol = protocol; |
b0e380b1 | 2633 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2634 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2635 | skb->dev = odev; |
2636 | skb->pkt_type = PACKET_HOST; | |
2637 | ||
222f1806 LC |
2638 | if (pkt_dev->nfrags <= 0) |
2639 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2640 | else { |
2641 | int frags = pkt_dev->nfrags; | |
2642 | int i; | |
2643 | ||
222f1806 LC |
2644 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2645 | ||
1da177e4 LT |
2646 | if (frags > MAX_SKB_FRAGS) |
2647 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2648 | if (datalen > frags * PAGE_SIZE) { |
2649 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2650 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2651 | } |
2652 | ||
2653 | i = 0; | |
2654 | while (datalen > 0) { | |
2655 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2656 | skb_shinfo(skb)->frags[i].page = page; | |
2657 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2658 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2659 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2660 | datalen -= skb_shinfo(skb)->frags[i].size; |
2661 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2662 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2663 | i++; | |
2664 | skb_shinfo(skb)->nr_frags = i; | |
2665 | } | |
2666 | ||
2667 | while (i < frags) { | |
2668 | int rem; | |
2669 | ||
2670 | if (i == 0) | |
2671 | break; | |
2672 | ||
2673 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2674 | if (rem == 0) | |
2675 | break; | |
2676 | ||
2677 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2678 | ||
222f1806 LC |
2679 | skb_shinfo(skb)->frags[i] = |
2680 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2681 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2682 | skb_shinfo(skb)->frags[i].page = |
2683 | skb_shinfo(skb)->frags[i - 1].page; | |
2684 | skb_shinfo(skb)->frags[i].page_offset += | |
2685 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2686 | skb_shinfo(skb)->frags[i].size = rem; |
2687 | i++; | |
2688 | skb_shinfo(skb)->nr_frags = i; | |
2689 | } | |
2690 | } | |
2691 | ||
63adc6fb SH |
2692 | /* Stamp the time, and sequence number, |
2693 | * convert them to network byte order | |
2694 | */ | |
222f1806 LC |
2695 | if (pgh) { |
2696 | struct timeval timestamp; | |
2697 | ||
2698 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2699 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2700 | ||
2701 | do_gettimeofday(×tamp); | |
2702 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2703 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2704 | } | |
1da177e4 | 2705 | |
a553e4a6 JHS |
2706 | #ifdef CONFIG_XFRM |
2707 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2708 | return NULL; | |
2709 | #endif | |
2710 | ||
1da177e4 LT |
2711 | return skb; |
2712 | } | |
2713 | ||
2714 | /* | |
4ec93edb | 2715 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2716 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2717 | * | |
4ec93edb | 2718 | * Slightly modified for kernel. |
1da177e4 LT |
2719 | * Should be candidate for net/ipv4/utils.c |
2720 | * --ro | |
2721 | */ | |
2722 | ||
222f1806 | 2723 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2724 | { |
2725 | unsigned int i; | |
222f1806 | 2726 | unsigned int len = 0; |
1da177e4 LT |
2727 | unsigned long u; |
2728 | char suffix[16]; | |
222f1806 LC |
2729 | unsigned int prefixlen = 0; |
2730 | unsigned int suffixlen = 0; | |
252e3346 | 2731 | __be32 tmp; |
cfcabdcc | 2732 | char *pos; |
1da177e4 | 2733 | |
222f1806 LC |
2734 | for (i = 0; i < 16; i++) |
2735 | ip[i] = 0; | |
1da177e4 LT |
2736 | |
2737 | for (;;) { | |
2738 | if (*s == ':') { | |
2739 | len++; | |
222f1806 LC |
2740 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2741 | s += 2; | |
1da177e4 LT |
2742 | len++; |
2743 | break; | |
2744 | } | |
2745 | s++; | |
2746 | } | |
1da177e4 | 2747 | |
cfcabdcc SH |
2748 | u = simple_strtoul(s, &pos, 16); |
2749 | i = pos - s; | |
222f1806 LC |
2750 | if (!i) |
2751 | return 0; | |
2752 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2753 | |
2754 | /* the last 4 bytes may be written as IPv4 address */ | |
2755 | ||
2756 | tmp = in_aton(s); | |
222f1806 LC |
2757 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2758 | return i + len; | |
1da177e4 LT |
2759 | } |
2760 | ip[prefixlen++] = (u >> 8); | |
2761 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2762 | s += i; |
2763 | len += i; | |
2764 | if (prefixlen == 16) | |
1da177e4 LT |
2765 | return len; |
2766 | } | |
2767 | ||
2768 | /* part 2, after "::" */ | |
2769 | for (;;) { | |
2770 | if (*s == ':') { | |
222f1806 | 2771 | if (suffixlen == 0) |
1da177e4 LT |
2772 | break; |
2773 | s++; | |
2774 | len++; | |
222f1806 | 2775 | } else if (suffixlen != 0) |
1da177e4 | 2776 | break; |
cfcabdcc SH |
2777 | |
2778 | u = simple_strtol(s, &pos, 16); | |
2779 | i = pos - s; | |
1da177e4 | 2780 | if (!i) { |
222f1806 LC |
2781 | if (*s) |
2782 | len--; | |
1da177e4 LT |
2783 | break; |
2784 | } | |
222f1806 | 2785 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2786 | tmp = in_aton(s); |
222f1806 LC |
2787 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2788 | sizeof(tmp)); | |
2789 | suffixlen += 4; | |
2790 | len += strlen(s); | |
1da177e4 LT |
2791 | break; |
2792 | } | |
2793 | suffix[suffixlen++] = (u >> 8); | |
2794 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2795 | s += i; |
2796 | len += i; | |
2797 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2798 | break; |
2799 | } | |
222f1806 LC |
2800 | for (i = 0; i < suffixlen; i++) |
2801 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2802 | return len; |
2803 | } | |
2804 | ||
222f1806 LC |
2805 | static char tohex(char hexdigit) |
2806 | { | |
2807 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2808 | } |
2809 | ||
222f1806 LC |
2810 | static int fmt_xlong(char *s, unsigned int i) |
2811 | { | |
2812 | char *bak = s; | |
2813 | *s = tohex((i >> 12) & 0xf); | |
2814 | if (s != bak || *s != '0') | |
2815 | ++s; | |
2816 | *s = tohex((i >> 8) & 0xf); | |
2817 | if (s != bak || *s != '0') | |
2818 | ++s; | |
2819 | *s = tohex((i >> 4) & 0xf); | |
2820 | if (s != bak || *s != '0') | |
2821 | ++s; | |
2822 | *s = tohex(i & 0xf); | |
2823 | return s - bak + 1; | |
1da177e4 LT |
2824 | } |
2825 | ||
222f1806 LC |
2826 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2827 | { | |
1da177e4 LT |
2828 | unsigned int len; |
2829 | unsigned int i; | |
2830 | unsigned int temp; | |
2831 | unsigned int compressing; | |
2832 | int j; | |
2833 | ||
222f1806 LC |
2834 | len = 0; |
2835 | compressing = 0; | |
2836 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2837 | |
2838 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2839 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2840 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2841 | temp = strlen(s); | |
2842 | return len + temp; | |
1da177e4 LT |
2843 | } |
2844 | #endif | |
222f1806 LC |
2845 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2846 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2847 | if (temp == 0) { |
2848 | if (!compressing) { | |
222f1806 LC |
2849 | compressing = 1; |
2850 | if (j == 0) { | |
2851 | *s++ = ':'; | |
2852 | ++len; | |
1da177e4 LT |
2853 | } |
2854 | } | |
2855 | } else { | |
2856 | if (compressing) { | |
222f1806 LC |
2857 | compressing = 0; |
2858 | *s++ = ':'; | |
2859 | ++len; | |
1da177e4 | 2860 | } |
222f1806 LC |
2861 | i = fmt_xlong(s, temp); |
2862 | len += i; | |
2863 | s += i; | |
2864 | if (j < 14) { | |
1da177e4 LT |
2865 | *s++ = ':'; |
2866 | ++len; | |
2867 | } | |
2868 | } | |
2869 | } | |
2870 | if (compressing) { | |
222f1806 LC |
2871 | *s++ = ':'; |
2872 | ++len; | |
1da177e4 | 2873 | } |
222f1806 | 2874 | *s = 0; |
1da177e4 LT |
2875 | return len; |
2876 | } | |
2877 | ||
222f1806 LC |
2878 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2879 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2880 | { |
2881 | struct sk_buff *skb = NULL; | |
2882 | __u8 *eth; | |
2883 | struct udphdr *udph; | |
2884 | int datalen; | |
2885 | struct ipv6hdr *iph; | |
222f1806 | 2886 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2887 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2888 | __be32 *mpls; |
34954ddc FF |
2889 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2890 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2891 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2892 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2893 | u16 queue_map; |
ca6549af SW |
2894 | |
2895 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2896 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2897 | |
34954ddc | 2898 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2899 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2900 | |
64053bee RO |
2901 | /* Update any of the values, used when we're incrementing various |
2902 | * fields. | |
2903 | */ | |
fd2ea0a7 | 2904 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2905 | mod_cur_headers(pkt_dev); |
2906 | ||
e470757d SH |
2907 | skb = __netdev_alloc_skb(odev, |
2908 | pkt_dev->cur_pkt_size + 64 | |
2909 | + 16 + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
2910 | if (!skb) { |
2911 | sprintf(pkt_dev->result, "No memory"); | |
2912 | return NULL; | |
2913 | } | |
2914 | ||
2915 | skb_reserve(skb, 16); | |
2916 | ||
2917 | /* Reserve for ethernet and IP header */ | |
2918 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2919 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2920 | if (pkt_dev->nr_labels) | |
2921 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2922 | |
2923 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2924 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2925 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2926 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2927 | pkt_dev->svlan_cfi, | |
2928 | pkt_dev->svlan_p); | |
34954ddc | 2929 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2930 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2931 | } |
2932 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2933 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2934 | pkt_dev->vlan_cfi, | |
2935 | pkt_dev->vlan_p); | |
34954ddc | 2936 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2937 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
2938 | } |
2939 | ||
27a884dc | 2940 | skb->network_header = skb->tail; |
b0e380b1 | 2941 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 2942 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2943 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2944 | iph = ipv6_hdr(skb); |
2945 | udph = udp_hdr(skb); | |
1da177e4 | 2946 | |
1da177e4 | 2947 | memcpy(eth, pkt_dev->hh, 12); |
63adc6fb | 2948 | *(__be16 *) ð[12] = protocol; |
64053bee | 2949 | |
ca6549af SW |
2950 | /* Eth + IPh + UDPh + mpls */ |
2951 | datalen = pkt_dev->cur_pkt_size - 14 - | |
2952 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 2953 | pkt_dev->pkt_overhead; |
1da177e4 | 2954 | |
222f1806 | 2955 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
2956 | datalen = sizeof(struct pktgen_hdr); |
2957 | if (net_ratelimit()) | |
222f1806 LC |
2958 | printk(KERN_INFO "pktgen: increased datalen to %d\n", |
2959 | datalen); | |
1da177e4 LT |
2960 | } |
2961 | ||
2962 | udph->source = htons(pkt_dev->cur_udp_src); | |
2963 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2964 | udph->len = htons(datalen + sizeof(struct udphdr)); |
2965 | udph->check = 0; /* No checksum */ | |
1da177e4 | 2966 | |
d5f1ce9a | 2967 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 2968 | |
1ca7768c FF |
2969 | if (pkt_dev->traffic_class) { |
2970 | /* Version + traffic class + flow (0) */ | |
252e3346 | 2971 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
2972 | } |
2973 | ||
1da177e4 LT |
2974 | iph->hop_limit = 32; |
2975 | ||
2976 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
2977 | iph->nexthdr = IPPROTO_UDP; | |
2978 | ||
2979 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
2980 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
2981 | ||
b0e380b1 | 2982 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2983 | pkt_dev->pkt_overhead); |
ca6549af | 2984 | skb->protocol = protocol; |
1da177e4 LT |
2985 | skb->dev = odev; |
2986 | skb->pkt_type = PACKET_HOST; | |
2987 | ||
222f1806 LC |
2988 | if (pkt_dev->nfrags <= 0) |
2989 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2990 | else { |
2991 | int frags = pkt_dev->nfrags; | |
2992 | int i; | |
2993 | ||
222f1806 LC |
2994 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2995 | ||
1da177e4 LT |
2996 | if (frags > MAX_SKB_FRAGS) |
2997 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2998 | if (datalen > frags * PAGE_SIZE) { |
2999 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
3000 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
3001 | } |
3002 | ||
3003 | i = 0; | |
3004 | while (datalen > 0) { | |
3005 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
3006 | skb_shinfo(skb)->frags[i].page = page; | |
3007 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
3008 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 3009 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
3010 | datalen -= skb_shinfo(skb)->frags[i].size; |
3011 | skb->len += skb_shinfo(skb)->frags[i].size; | |
3012 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
3013 | i++; | |
3014 | skb_shinfo(skb)->nr_frags = i; | |
3015 | } | |
3016 | ||
3017 | while (i < frags) { | |
3018 | int rem; | |
3019 | ||
3020 | if (i == 0) | |
3021 | break; | |
3022 | ||
3023 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
3024 | if (rem == 0) | |
3025 | break; | |
3026 | ||
3027 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
3028 | ||
222f1806 LC |
3029 | skb_shinfo(skb)->frags[i] = |
3030 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 3031 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
3032 | skb_shinfo(skb)->frags[i].page = |
3033 | skb_shinfo(skb)->frags[i - 1].page; | |
3034 | skb_shinfo(skb)->frags[i].page_offset += | |
3035 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
3036 | skb_shinfo(skb)->frags[i].size = rem; |
3037 | i++; | |
3038 | skb_shinfo(skb)->nr_frags = i; | |
3039 | } | |
3040 | } | |
3041 | ||
63adc6fb SH |
3042 | /* Stamp the time, and sequence number, |
3043 | * convert them to network byte order | |
3044 | * should we update cloned packets too ? | |
3045 | */ | |
222f1806 LC |
3046 | if (pgh) { |
3047 | struct timeval timestamp; | |
3048 | ||
3049 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
3050 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
3051 | ||
3052 | do_gettimeofday(×tamp); | |
3053 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
3054 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
3055 | } | |
34954ddc | 3056 | /* pkt_dev->seq_num++; FF: you really mean this? */ |
222f1806 | 3057 | |
1da177e4 LT |
3058 | return skb; |
3059 | } | |
3060 | ||
475ac1e4 SH |
3061 | static struct sk_buff *fill_packet(struct net_device *odev, |
3062 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3063 | { |
222f1806 | 3064 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
3065 | return fill_packet_ipv6(odev, pkt_dev); |
3066 | else | |
3067 | return fill_packet_ipv4(odev, pkt_dev); | |
3068 | } | |
3069 | ||
222f1806 | 3070 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 3071 | { |
222f1806 LC |
3072 | pkt_dev->seq_num = 1; |
3073 | pkt_dev->idle_acc = 0; | |
1da177e4 | 3074 | pkt_dev->sofar = 0; |
222f1806 LC |
3075 | pkt_dev->tx_bytes = 0; |
3076 | pkt_dev->errors = 0; | |
1da177e4 LT |
3077 | } |
3078 | ||
3079 | /* Set up structure for sending pkts, clear counters */ | |
3080 | ||
3081 | static void pktgen_run(struct pktgen_thread *t) | |
3082 | { | |
c26a8016 | 3083 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
3084 | int started = 0; |
3085 | ||
25c4e53a | 3086 | pr_debug("pktgen: entering pktgen_run. %p\n", t); |
1da177e4 LT |
3087 | |
3088 | if_lock(t); | |
c26a8016 | 3089 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
3090 | |
3091 | /* | |
3092 | * setup odev and create initial packet. | |
3093 | */ | |
3094 | pktgen_setup_inject(pkt_dev); | |
3095 | ||
222f1806 | 3096 | if (pkt_dev->odev) { |
1da177e4 | 3097 | pktgen_clear_counters(pkt_dev); |
222f1806 | 3098 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 | 3099 | pkt_dev->skb = NULL; |
fd29cf72 SH |
3100 | pkt_dev->started_at = |
3101 | pkt_dev->next_tx = ktime_now(); | |
3102 | ||
16dab72f | 3103 | set_pkt_overhead(pkt_dev); |
222f1806 | 3104 | |
1da177e4 LT |
3105 | strcpy(pkt_dev->result, "Starting"); |
3106 | started++; | |
222f1806 | 3107 | } else |
1da177e4 LT |
3108 | strcpy(pkt_dev->result, "Error starting"); |
3109 | } | |
3110 | if_unlock(t); | |
222f1806 LC |
3111 | if (started) |
3112 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3113 | } |
3114 | ||
3115 | static void pktgen_stop_all_threads_ifs(void) | |
3116 | { | |
cdcdbe0b | 3117 | struct pktgen_thread *t; |
1da177e4 | 3118 | |
25c4e53a | 3119 | pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n"); |
1da177e4 | 3120 | |
6146e6a4 | 3121 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3122 | |
3123 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3124 | t->control |= T_STOP; |
cdcdbe0b | 3125 | |
6146e6a4 | 3126 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3127 | } |
3128 | ||
648fda74 | 3129 | static int thread_is_running(const struct pktgen_thread *t) |
1da177e4 | 3130 | { |
648fda74 | 3131 | const struct pktgen_dev *pkt_dev; |
1da177e4 | 3132 | |
c26a8016 | 3133 | list_for_each_entry(pkt_dev, &t->if_list, list) |
648fda74 SH |
3134 | if (pkt_dev->running) |
3135 | return 1; | |
3136 | return 0; | |
1da177e4 LT |
3137 | } |
3138 | ||
222f1806 | 3139 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3140 | { |
222f1806 | 3141 | if_lock(t); |
1da177e4 | 3142 | |
222f1806 | 3143 | while (thread_is_running(t)) { |
1da177e4 | 3144 | |
222f1806 | 3145 | if_unlock(t); |
1da177e4 | 3146 | |
222f1806 | 3147 | msleep_interruptible(100); |
1da177e4 | 3148 | |
222f1806 LC |
3149 | if (signal_pending(current)) |
3150 | goto signal; | |
3151 | if_lock(t); | |
3152 | } | |
3153 | if_unlock(t); | |
3154 | return 1; | |
3155 | signal: | |
3156 | return 0; | |
1da177e4 LT |
3157 | } |
3158 | ||
3159 | static int pktgen_wait_all_threads_run(void) | |
3160 | { | |
cdcdbe0b | 3161 | struct pktgen_thread *t; |
1da177e4 | 3162 | int sig = 1; |
222f1806 | 3163 | |
6146e6a4 | 3164 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3165 | |
3166 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3167 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3168 | if (sig == 0) |
3169 | break; | |
1da177e4 | 3170 | } |
cdcdbe0b LC |
3171 | |
3172 | if (sig == 0) | |
3173 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3174 | t->control |= (T_STOP); |
cdcdbe0b | 3175 | |
6146e6a4 | 3176 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3177 | return sig; |
3178 | } | |
3179 | ||
3180 | static void pktgen_run_all_threads(void) | |
3181 | { | |
cdcdbe0b | 3182 | struct pktgen_thread *t; |
1da177e4 | 3183 | |
25c4e53a | 3184 | pr_debug("pktgen: entering pktgen_run_all_threads.\n"); |
1da177e4 | 3185 | |
6146e6a4 | 3186 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3187 | |
cdcdbe0b | 3188 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3189 | t->control |= (T_RUN); |
cdcdbe0b | 3190 | |
6146e6a4 | 3191 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3192 | |
63adc6fb SH |
3193 | /* Propagate thread->control */ |
3194 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
222f1806 | 3195 | |
1da177e4 LT |
3196 | pktgen_wait_all_threads_run(); |
3197 | } | |
3198 | ||
eb37b41c JB |
3199 | static void pktgen_reset_all_threads(void) |
3200 | { | |
3201 | struct pktgen_thread *t; | |
3202 | ||
3203 | pr_debug("pktgen: entering pktgen_reset_all_threads.\n"); | |
3204 | ||
3205 | mutex_lock(&pktgen_thread_lock); | |
3206 | ||
3207 | list_for_each_entry(t, &pktgen_threads, th_list) | |
3208 | t->control |= (T_REMDEVALL); | |
3209 | ||
3210 | mutex_unlock(&pktgen_thread_lock); | |
3211 | ||
63adc6fb SH |
3212 | /* Propagate thread->control */ |
3213 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
eb37b41c JB |
3214 | |
3215 | pktgen_wait_all_threads_run(); | |
3216 | } | |
3217 | ||
1da177e4 LT |
3218 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3219 | { | |
fd29cf72 | 3220 | __u64 bps, mbps, pps; |
222f1806 | 3221 | char *p = pkt_dev->result; |
fd29cf72 SH |
3222 | ktime_t elapsed = ktime_sub(pkt_dev->stopped_at, |
3223 | pkt_dev->started_at); | |
3224 | ktime_t idle = ns_to_ktime(pkt_dev->idle_acc); | |
3225 | ||
3226 | p += sprintf(p, "OK: %llu(c%llu+d%llu) nsec, %llu (%dbyte,%dfrags)\n", | |
3227 | (unsigned long long)ktime_to_us(elapsed), | |
3228 | (unsigned long long)ktime_to_us(ktime_sub(elapsed, idle)), | |
3229 | (unsigned long long)ktime_to_us(idle), | |
222f1806 LC |
3230 | (unsigned long long)pkt_dev->sofar, |
3231 | pkt_dev->cur_pkt_size, nr_frags); | |
3232 | ||
fd29cf72 SH |
3233 | pps = div64_u64(pkt_dev->sofar * NSEC_PER_SEC, |
3234 | ktime_to_ns(elapsed)); | |
222f1806 LC |
3235 | |
3236 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3237 | ||
3238 | mbps = bps; | |
3239 | do_div(mbps, 1000000); | |
3240 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3241 | (unsigned long long)pps, | |
3242 | (unsigned long long)mbps, | |
3243 | (unsigned long long)bps, | |
3244 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3245 | } |
1da177e4 LT |
3246 | |
3247 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
222f1806 | 3248 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3249 | { |
222f1806 | 3250 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3251 | |
222f1806 | 3252 | if (!pkt_dev->running) { |
25a8b254 DM |
3253 | printk(KERN_WARNING "pktgen: interface: %s is already " |
3254 | "stopped\n", pkt_dev->odev->name); | |
222f1806 LC |
3255 | return -EINVAL; |
3256 | } | |
1da177e4 | 3257 | |
3bda06a3 SH |
3258 | kfree_skb(pkt_dev->skb); |
3259 | pkt_dev->skb = NULL; | |
fd29cf72 | 3260 | pkt_dev->stopped_at = ktime_now(); |
222f1806 | 3261 | pkt_dev->running = 0; |
1da177e4 | 3262 | |
95ed63f7 | 3263 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3264 | |
222f1806 | 3265 | return 0; |
1da177e4 LT |
3266 | } |
3267 | ||
222f1806 | 3268 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3269 | { |
c26a8016 | 3270 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3271 | |
1da177e4 LT |
3272 | if_lock(t); |
3273 | ||
c26a8016 LC |
3274 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3275 | if (!pkt_dev->running) | |
222f1806 LC |
3276 | continue; |
3277 | if (best == NULL) | |
c26a8016 | 3278 | best = pkt_dev; |
fd29cf72 | 3279 | else if (ktime_lt(pkt_dev->next_tx, best->next_tx)) |
c26a8016 | 3280 | best = pkt_dev; |
1da177e4 LT |
3281 | } |
3282 | if_unlock(t); | |
222f1806 | 3283 | return best; |
1da177e4 LT |
3284 | } |
3285 | ||
222f1806 LC |
3286 | static void pktgen_stop(struct pktgen_thread *t) |
3287 | { | |
c26a8016 | 3288 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3289 | |
25c4e53a | 3290 | pr_debug("pktgen: entering pktgen_stop\n"); |
1da177e4 | 3291 | |
222f1806 | 3292 | if_lock(t); |
1da177e4 | 3293 | |
c26a8016 LC |
3294 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3295 | pktgen_stop_device(pkt_dev); | |
95ed63f7 | 3296 | } |
1da177e4 | 3297 | |
222f1806 | 3298 | if_unlock(t); |
1da177e4 LT |
3299 | } |
3300 | ||
95ed63f7 AK |
3301 | /* |
3302 | * one of our devices needs to be removed - find it | |
3303 | * and remove it | |
3304 | */ | |
3305 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3306 | { | |
c26a8016 LC |
3307 | struct list_head *q, *n; |
3308 | struct pktgen_dev *cur; | |
95ed63f7 | 3309 | |
25c4e53a | 3310 | pr_debug("pktgen: entering pktgen_rem_one_if\n"); |
95ed63f7 AK |
3311 | |
3312 | if_lock(t); | |
3313 | ||
c26a8016 LC |
3314 | list_for_each_safe(q, n, &t->if_list) { |
3315 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3316 | |
222f1806 LC |
3317 | if (!cur->removal_mark) |
3318 | continue; | |
95ed63f7 | 3319 | |
86dc1ad2 | 3320 | kfree_skb(cur->skb); |
95ed63f7 AK |
3321 | cur->skb = NULL; |
3322 | ||
3323 | pktgen_remove_device(t, cur); | |
3324 | ||
3325 | break; | |
3326 | } | |
3327 | ||
3328 | if_unlock(t); | |
3329 | } | |
3330 | ||
222f1806 | 3331 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3332 | { |
c26a8016 LC |
3333 | struct list_head *q, *n; |
3334 | struct pktgen_dev *cur; | |
222f1806 LC |
3335 | |
3336 | /* Remove all devices, free mem */ | |
95ed63f7 | 3337 | |
25c4e53a | 3338 | pr_debug("pktgen: entering pktgen_rem_all_ifs\n"); |
222f1806 | 3339 | if_lock(t); |
1da177e4 | 3340 | |
c26a8016 LC |
3341 | list_for_each_safe(q, n, &t->if_list) { |
3342 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3343 | |
86dc1ad2 | 3344 | kfree_skb(cur->skb); |
95ed63f7 AK |
3345 | cur->skb = NULL; |
3346 | ||
1da177e4 LT |
3347 | pktgen_remove_device(t, cur); |
3348 | } | |
3349 | ||
222f1806 | 3350 | if_unlock(t); |
1da177e4 LT |
3351 | } |
3352 | ||
222f1806 | 3353 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3354 | { |
222f1806 | 3355 | /* Remove from the thread list */ |
1da177e4 | 3356 | |
ee74baa7 | 3357 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3358 | |
6146e6a4 | 3359 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3360 | |
cdcdbe0b LC |
3361 | list_del(&t->th_list); |
3362 | ||
6146e6a4 | 3363 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3364 | } |
3365 | ||
3791decb SH |
3366 | static void idle(struct pktgen_dev *pkt_dev) |
3367 | { | |
fd29cf72 | 3368 | ktime_t idle_start = ktime_now(); |
3791decb SH |
3369 | |
3370 | if (need_resched()) | |
3371 | schedule(); | |
3372 | else | |
3373 | cpu_relax(); | |
3374 | ||
fd29cf72 | 3375 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start)); |
3791decb SH |
3376 | } |
3377 | ||
fd29cf72 | 3378 | |
475ac1e4 | 3379 | static void pktgen_xmit(struct pktgen_dev *pkt_dev) |
1da177e4 | 3380 | { |
00829823 SH |
3381 | struct net_device *odev = pkt_dev->odev; |
3382 | int (*xmit)(struct sk_buff *, struct net_device *) | |
3383 | = odev->netdev_ops->ndo_start_xmit; | |
fd2ea0a7 | 3384 | struct netdev_queue *txq; |
fd2ea0a7 | 3385 | u16 queue_map; |
1da177e4 LT |
3386 | int ret; |
3387 | ||
fd29cf72 | 3388 | if (pkt_dev->delay) { |
2bc481cf | 3389 | spin(pkt_dev, pkt_dev->next_tx); |
1da177e4 LT |
3390 | |
3391 | /* This is max DELAY, this has special meaning of | |
3392 | * "never transmit" | |
3393 | */ | |
fd29cf72 SH |
3394 | if (pkt_dev->delay == ULLONG_MAX) { |
3395 | pkt_dev->next_tx = ktime_add_ns(ktime_now(), ULONG_MAX); | |
3791decb | 3396 | return; |
1da177e4 LT |
3397 | } |
3398 | } | |
222f1806 | 3399 | |
fd2ea0a7 DM |
3400 | if (!pkt_dev->skb) { |
3401 | set_cur_queue_map(pkt_dev); | |
3402 | queue_map = pkt_dev->cur_queue_map; | |
3403 | } else { | |
3404 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3405 | } | |
3406 | ||
3407 | txq = netdev_get_tx_queue(odev, queue_map); | |
3791decb SH |
3408 | /* Did we saturate the queue already? */ |
3409 | if (netif_tx_queue_stopped(txq) || netif_tx_queue_frozen(txq)) { | |
3410 | /* If device is down, then all queues are permnantly frozen */ | |
3411 | if (netif_running(odev)) | |
3412 | idle(pkt_dev); | |
3413 | else | |
1da177e4 | 3414 | pktgen_stop_device(pkt_dev); |
3791decb | 3415 | return; |
1da177e4 | 3416 | } |
222f1806 | 3417 | |
7d7bb1cf SH |
3418 | if (!pkt_dev->skb || (pkt_dev->last_ok && |
3419 | ++pkt_dev->clone_count >= pkt_dev->clone_skb)) { | |
3420 | /* build a new pkt */ | |
3421 | kfree_skb(pkt_dev->skb); | |
3422 | ||
3423 | pkt_dev->skb = fill_packet(odev, pkt_dev); | |
3424 | if (pkt_dev->skb == NULL) { | |
3425 | printk(KERN_ERR "pktgen: ERROR: couldn't " | |
3426 | "allocate skb in fill_packet.\n"); | |
3427 | schedule(); | |
3428 | pkt_dev->clone_count--; /* back out increment, OOM */ | |
3429 | return; | |
1da177e4 | 3430 | } |
7d7bb1cf SH |
3431 | |
3432 | pkt_dev->allocated_skbs++; | |
3433 | pkt_dev->clone_count = 0; /* reset counter */ | |
1da177e4 | 3434 | } |
95ed63f7 | 3435 | |
fd2ea0a7 DM |
3436 | /* fill_packet() might have changed the queue */ |
3437 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3438 | txq = netdev_get_tx_queue(odev, queue_map); | |
3439 | ||
3440 | __netif_tx_lock_bh(txq); | |
3791decb SH |
3441 | if (unlikely(netif_tx_queue_stopped(txq) || netif_tx_queue_frozen(txq))) |
3442 | pkt_dev->last_ok = 0; | |
3443 | else { | |
1da177e4 | 3444 | atomic_inc(&(pkt_dev->skb->users)); |
5b8db2f5 SH |
3445 | |
3446 | retry_now: | |
00829823 | 3447 | ret = (*xmit)(pkt_dev->skb, odev); |
5b8db2f5 SH |
3448 | switch (ret) { |
3449 | case NETDEV_TX_OK: | |
08baf561 | 3450 | txq_trans_update(txq); |
222f1806 | 3451 | pkt_dev->last_ok = 1; |
1da177e4 LT |
3452 | pkt_dev->sofar++; |
3453 | pkt_dev->seq_num++; | |
3454 | pkt_dev->tx_bytes += pkt_dev->cur_pkt_size; | |
5b8db2f5 SH |
3455 | break; |
3456 | case NETDEV_TX_LOCKED: | |
1da177e4 LT |
3457 | cpu_relax(); |
3458 | goto retry_now; | |
5b8db2f5 SH |
3459 | default: /* Drivers are not supposed to return other values! */ |
3460 | if (net_ratelimit()) | |
3461 | pr_info("pktgen: %s xmit error: %d\n", | |
3462 | odev->name, ret); | |
1da177e4 | 3463 | pkt_dev->errors++; |
5b8db2f5 SH |
3464 | /* fallthru */ |
3465 | case NETDEV_TX_BUSY: | |
3466 | /* Retry it next time */ | |
3467 | atomic_dec(&(pkt_dev->skb->users)); | |
1da177e4 LT |
3468 | pkt_dev->last_ok = 0; |
3469 | } | |
3470 | ||
fd29cf72 SH |
3471 | if (pkt_dev->delay) |
3472 | pkt_dev->next_tx = ktime_add_ns(ktime_now(), | |
3473 | pkt_dev->delay); | |
222f1806 | 3474 | } |
fd2ea0a7 | 3475 | __netif_tx_unlock_bh(txq); |
222f1806 | 3476 | |
1da177e4 LT |
3477 | /* If pkt_dev->count is zero, then run forever */ |
3478 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
64e8ff5e SH |
3479 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { |
3480 | if (signal_pending(current)) | |
3481 | break; | |
3482 | idle(pkt_dev); | |
1da177e4 | 3483 | } |
222f1806 | 3484 | |
1da177e4 LT |
3485 | /* Done with this */ |
3486 | pktgen_stop_device(pkt_dev); | |
222f1806 | 3487 | } |
222f1806 | 3488 | } |
1da177e4 | 3489 | |
4ec93edb | 3490 | /* |
1da177e4 LT |
3491 | * Main loop of the thread goes here |
3492 | */ | |
3493 | ||
ee74baa7 | 3494 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3495 | { |
3496 | DEFINE_WAIT(wait); | |
ee74baa7 | 3497 | struct pktgen_thread *t = arg; |
222f1806 | 3498 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3499 | int cpu = t->cpu; |
1da177e4 | 3500 | |
ee74baa7 | 3501 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3502 | |
3503 | init_waitqueue_head(&t->queue); | |
d3ede327 | 3504 | complete(&t->start_done); |
1da177e4 | 3505 | |
63adc6fb SH |
3506 | pr_debug("pktgen: starting pktgen/%d: pid=%d\n", |
3507 | cpu, task_pid_nr(current)); | |
1da177e4 | 3508 | |
ee74baa7 | 3509 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3510 | |
83144186 RW |
3511 | set_freezable(); |
3512 | ||
ee74baa7 DM |
3513 | while (!kthread_should_stop()) { |
3514 | pkt_dev = next_to_run(t); | |
1da177e4 | 3515 | |
ee74baa7 DM |
3516 | if (!pkt_dev && |
3517 | (t->control & (T_STOP | T_RUN | T_REMDEVALL | T_REMDEV)) | |
3518 | == 0) { | |
3519 | prepare_to_wait(&(t->queue), &wait, | |
3520 | TASK_INTERRUPTIBLE); | |
3521 | schedule_timeout(HZ / 10); | |
3522 | finish_wait(&(t->queue), &wait); | |
3523 | } | |
1da177e4 | 3524 | |
ee74baa7 | 3525 | __set_current_state(TASK_RUNNING); |
222f1806 | 3526 | |
b163911f | 3527 | if (pkt_dev) |
1da177e4 LT |
3528 | pktgen_xmit(pkt_dev); |
3529 | ||
222f1806 | 3530 | if (t->control & T_STOP) { |
1da177e4 LT |
3531 | pktgen_stop(t); |
3532 | t->control &= ~(T_STOP); | |
3533 | } | |
3534 | ||
222f1806 | 3535 | if (t->control & T_RUN) { |
1da177e4 LT |
3536 | pktgen_run(t); |
3537 | t->control &= ~(T_RUN); | |
3538 | } | |
3539 | ||
222f1806 | 3540 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3541 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3542 | t->control &= ~(T_REMDEVALL); |
3543 | } | |
3544 | ||
222f1806 | 3545 | if (t->control & T_REMDEV) { |
95ed63f7 | 3546 | pktgen_rem_one_if(t); |
1da177e4 LT |
3547 | t->control &= ~(T_REMDEV); |
3548 | } | |
3549 | ||
09fe3ef4 AM |
3550 | try_to_freeze(); |
3551 | ||
ee74baa7 | 3552 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3553 | } |
1da177e4 | 3554 | |
25c4e53a | 3555 | pr_debug("pktgen: %s stopping all device\n", t->tsk->comm); |
222f1806 | 3556 | pktgen_stop(t); |
1da177e4 | 3557 | |
25c4e53a | 3558 | pr_debug("pktgen: %s removing all device\n", t->tsk->comm); |
222f1806 | 3559 | pktgen_rem_all_ifs(t); |
1da177e4 | 3560 | |
25c4e53a | 3561 | pr_debug("pktgen: %s removing thread.\n", t->tsk->comm); |
222f1806 | 3562 | pktgen_rem_thread(t); |
cdcdbe0b | 3563 | |
ee74baa7 | 3564 | return 0; |
1da177e4 LT |
3565 | } |
3566 | ||
222f1806 LC |
3567 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3568 | const char *ifname) | |
1da177e4 | 3569 | { |
c26a8016 | 3570 | struct pktgen_dev *p, *pkt_dev = NULL; |
222f1806 LC |
3571 | if_lock(t); |
3572 | ||
c26a8016 | 3573 | list_for_each_entry(p, &t->if_list, list) |
39df232f | 3574 | if (strncmp(p->odev->name, ifname, IFNAMSIZ) == 0) { |
c26a8016 | 3575 | pkt_dev = p; |
222f1806 LC |
3576 | break; |
3577 | } | |
222f1806 LC |
3578 | |
3579 | if_unlock(t); | |
25c4e53a | 3580 | pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3581 | return pkt_dev; |
1da177e4 LT |
3582 | } |
3583 | ||
4ec93edb YH |
3584 | /* |
3585 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3586 | */ |
3587 | ||
222f1806 LC |
3588 | static int add_dev_to_thread(struct pktgen_thread *t, |
3589 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3590 | { |
3591 | int rv = 0; | |
222f1806 LC |
3592 | |
3593 | if_lock(t); | |
3594 | ||
3595 | if (pkt_dev->pg_thread) { | |
25a8b254 DM |
3596 | printk(KERN_ERR "pktgen: ERROR: already assigned " |
3597 | "to a thread.\n"); | |
222f1806 LC |
3598 | rv = -EBUSY; |
3599 | goto out; | |
3600 | } | |
c26a8016 LC |
3601 | |
3602 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3603 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3604 | pkt_dev->running = 0; |
3605 | ||
222f1806 LC |
3606 | out: |
3607 | if_unlock(t); | |
3608 | return rv; | |
1da177e4 LT |
3609 | } |
3610 | ||
3611 | /* Called under thread lock */ | |
3612 | ||
222f1806 | 3613 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3614 | { |
222f1806 | 3615 | struct pktgen_dev *pkt_dev; |
39df232f | 3616 | int err; |
222f1806 | 3617 | |
1da177e4 LT |
3618 | /* We don't allow a device to be on several threads */ |
3619 | ||
d50a6b56 SH |
3620 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3621 | if (pkt_dev) { | |
25a8b254 | 3622 | printk(KERN_ERR "pktgen: ERROR: interface already used.\n"); |
222f1806 LC |
3623 | return -EBUSY; |
3624 | } | |
d50a6b56 SH |
3625 | |
3626 | pkt_dev = kzalloc(sizeof(struct pktgen_dev), GFP_KERNEL); | |
3627 | if (!pkt_dev) | |
3628 | return -ENOMEM; | |
3629 | ||
222f1806 | 3630 | pkt_dev->flows = vmalloc(MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 SH |
3631 | if (pkt_dev->flows == NULL) { |
3632 | kfree(pkt_dev); | |
3633 | return -ENOMEM; | |
3634 | } | |
222f1806 | 3635 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3636 | |
95ed63f7 | 3637 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3638 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3639 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3640 | pkt_dev->nfrags = 0; | |
3641 | pkt_dev->clone_skb = pg_clone_skb_d; | |
fd29cf72 | 3642 | pkt_dev->delay = pg_delay_d; |
d50a6b56 SH |
3643 | pkt_dev->count = pg_count_d; |
3644 | pkt_dev->sofar = 0; | |
222f1806 | 3645 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3646 | pkt_dev->udp_src_max = 9; |
3647 | pkt_dev->udp_dst_min = 9; | |
3648 | pkt_dev->udp_dst_max = 9; | |
3649 | ||
34954ddc FF |
3650 | pkt_dev->vlan_p = 0; |
3651 | pkt_dev->vlan_cfi = 0; | |
3652 | pkt_dev->vlan_id = 0xffff; | |
3653 | pkt_dev->svlan_p = 0; | |
3654 | pkt_dev->svlan_cfi = 0; | |
3655 | pkt_dev->svlan_id = 0xffff; | |
3656 | ||
39df232f SH |
3657 | err = pktgen_setup_dev(pkt_dev, ifname); |
3658 | if (err) | |
3659 | goto out1; | |
d50a6b56 | 3660 | |
5efdccbc DL |
3661 | pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir, |
3662 | &pktgen_if_fops, pkt_dev); | |
39df232f | 3663 | if (!pkt_dev->entry) { |
25a8b254 | 3664 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
d50a6b56 | 3665 | PG_PROC_DIR, ifname); |
39df232f SH |
3666 | err = -EINVAL; |
3667 | goto out2; | |
d50a6b56 | 3668 | } |
a553e4a6 JHS |
3669 | #ifdef CONFIG_XFRM |
3670 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3671 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3672 | #endif | |
d50a6b56 SH |
3673 | |
3674 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3675 | out2: |
3676 | dev_put(pkt_dev->odev); | |
3677 | out1: | |
a553e4a6 JHS |
3678 | #ifdef CONFIG_XFRM |
3679 | free_SAs(pkt_dev); | |
3680 | #endif | |
1d0ebfe7 | 3681 | vfree(pkt_dev->flows); |
39df232f SH |
3682 | kfree(pkt_dev); |
3683 | return err; | |
1da177e4 LT |
3684 | } |
3685 | ||
ee74baa7 | 3686 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3687 | { |
cdcdbe0b | 3688 | struct pktgen_thread *t; |
d50a6b56 | 3689 | struct proc_dir_entry *pe; |
ee74baa7 | 3690 | struct task_struct *p; |
222f1806 LC |
3691 | |
3692 | t = kzalloc(sizeof(struct pktgen_thread), GFP_KERNEL); | |
3693 | if (!t) { | |
25a8b254 DM |
3694 | printk(KERN_ERR "pktgen: ERROR: out of memory, can't " |
3695 | "create new thread.\n"); | |
222f1806 LC |
3696 | return -ENOMEM; |
3697 | } | |
3698 | ||
222f1806 | 3699 | spin_lock_init(&t->if_lock); |
1da177e4 | 3700 | t->cpu = cpu; |
222f1806 | 3701 | |
ee74baa7 DM |
3702 | INIT_LIST_HEAD(&t->if_list); |
3703 | ||
3704 | list_add_tail(&t->th_list, &pktgen_threads); | |
d3ede327 | 3705 | init_completion(&t->start_done); |
ee74baa7 DM |
3706 | |
3707 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3708 | if (IS_ERR(p)) { | |
25a8b254 DM |
3709 | printk(KERN_ERR "pktgen: kernel_thread() failed " |
3710 | "for cpu %d\n", t->cpu); | |
ee74baa7 DM |
3711 | list_del(&t->th_list); |
3712 | kfree(t); | |
3713 | return PTR_ERR(p); | |
3714 | } | |
3715 | kthread_bind(p, cpu); | |
3716 | t->tsk = p; | |
3717 | ||
5efdccbc DL |
3718 | pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir, |
3719 | &pktgen_thread_fops, t); | |
222f1806 | 3720 | if (!pe) { |
25a8b254 | 3721 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
ee74baa7 DM |
3722 | PG_PROC_DIR, t->tsk->comm); |
3723 | kthread_stop(p); | |
3724 | list_del(&t->th_list); | |
222f1806 LC |
3725 | kfree(t); |
3726 | return -EINVAL; | |
3727 | } | |
d50a6b56 | 3728 | |
ee74baa7 | 3729 | wake_up_process(p); |
d3ede327 | 3730 | wait_for_completion(&t->start_done); |
1da177e4 LT |
3731 | |
3732 | return 0; | |
3733 | } | |
3734 | ||
4ec93edb YH |
3735 | /* |
3736 | * Removes a device from the thread if_list. | |
1da177e4 | 3737 | */ |
222f1806 LC |
3738 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3739 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3740 | { |
c26a8016 LC |
3741 | struct list_head *q, *n; |
3742 | struct pktgen_dev *p; | |
1da177e4 | 3743 | |
c26a8016 LC |
3744 | list_for_each_safe(q, n, &t->if_list) { |
3745 | p = list_entry(q, struct pktgen_dev, list); | |
3746 | if (p == pkt_dev) | |
3747 | list_del(&p->list); | |
1da177e4 LT |
3748 | } |
3749 | } | |
3750 | ||
222f1806 LC |
3751 | static int pktgen_remove_device(struct pktgen_thread *t, |
3752 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3753 | { |
3754 | ||
25c4e53a | 3755 | pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3756 | |
222f1806 | 3757 | if (pkt_dev->running) { |
25a8b254 DM |
3758 | printk(KERN_WARNING "pktgen: WARNING: trying to remove a " |
3759 | "running interface, stopping it now.\n"); | |
222f1806 LC |
3760 | pktgen_stop_device(pkt_dev); |
3761 | } | |
3762 | ||
3763 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3764 | |
3765 | if (pkt_dev->odev) { | |
3766 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3767 | pkt_dev->odev = NULL; |
3768 | } | |
3769 | ||
1da177e4 LT |
3770 | /* And update the thread if_list */ |
3771 | ||
3772 | _rem_dev_from_if_list(t, pkt_dev); | |
3773 | ||
39df232f SH |
3774 | if (pkt_dev->entry) |
3775 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3776 | |
a553e4a6 JHS |
3777 | #ifdef CONFIG_XFRM |
3778 | free_SAs(pkt_dev); | |
3779 | #endif | |
1d0ebfe7 | 3780 | vfree(pkt_dev->flows); |
1da177e4 | 3781 | kfree(pkt_dev); |
222f1806 | 3782 | return 0; |
1da177e4 LT |
3783 | } |
3784 | ||
222f1806 | 3785 | static int __init pg_init(void) |
1da177e4 LT |
3786 | { |
3787 | int cpu; | |
d50a6b56 | 3788 | struct proc_dir_entry *pe; |
1da177e4 | 3789 | |
25a8b254 | 3790 | printk(KERN_INFO "%s", version); |
1da177e4 | 3791 | |
457c4cbc | 3792 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3793 | if (!pg_proc_dir) |
3794 | return -ENODEV; | |
1da177e4 | 3795 | |
25296d59 | 3796 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3797 | if (pe == NULL) { |
25a8b254 DM |
3798 | printk(KERN_ERR "pktgen: ERROR: cannot create %s " |
3799 | "procfs entry.\n", PGCTRL); | |
457c4cbc | 3800 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3801 | return -EINVAL; |
3802 | } | |
1da177e4 | 3803 | |
1da177e4 LT |
3804 | /* Register us to receive netdevice events */ |
3805 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3806 | |
670c02c2 | 3807 | for_each_online_cpu(cpu) { |
8024bb24 | 3808 | int err; |
1da177e4 | 3809 | |
ee74baa7 | 3810 | err = pktgen_create_thread(cpu); |
8024bb24 | 3811 | if (err) |
25a8b254 DM |
3812 | printk(KERN_WARNING "pktgen: WARNING: Cannot create " |
3813 | "thread for cpu %d (%d)\n", cpu, err); | |
222f1806 | 3814 | } |
8024bb24 LC |
3815 | |
3816 | if (list_empty(&pktgen_threads)) { | |
25a8b254 DM |
3817 | printk(KERN_ERR "pktgen: ERROR: Initialization failed for " |
3818 | "all threads\n"); | |
8024bb24 LC |
3819 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3820 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3821 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3822 | return -ENODEV; |
3823 | } | |
3824 | ||
222f1806 | 3825 | return 0; |
1da177e4 LT |
3826 | } |
3827 | ||
3828 | static void __exit pg_cleanup(void) | |
3829 | { | |
cdcdbe0b LC |
3830 | struct pktgen_thread *t; |
3831 | struct list_head *q, *n; | |
1da177e4 LT |
3832 | wait_queue_head_t queue; |
3833 | init_waitqueue_head(&queue); | |
3834 | ||
222f1806 | 3835 | /* Stop all interfaces & threads */ |
1da177e4 | 3836 | |
cdcdbe0b LC |
3837 | list_for_each_safe(q, n, &pktgen_threads) { |
3838 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3839 | kthread_stop(t->tsk); |
3840 | kfree(t); | |
222f1806 | 3841 | } |
1da177e4 | 3842 | |
222f1806 | 3843 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3844 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3845 | ||
222f1806 | 3846 | /* Clean up proc file system */ |
d50a6b56 | 3847 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3848 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3849 | } |
3850 | ||
1da177e4 LT |
3851 | module_init(pg_init); |
3852 | module_exit(pg_cleanup); | |
3853 | ||
c3d2f52d | 3854 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se>"); |
1da177e4 LT |
3855 | MODULE_DESCRIPTION("Packet Generator tool"); |
3856 | MODULE_LICENSE("GPL"); | |
c3d2f52d | 3857 | MODULE_VERSION(VERSION); |
1da177e4 | 3858 | module_param(pg_count_d, int, 0); |
c3d2f52d | 3859 | MODULE_PARM_DESC(pg_count_d, "Default number of packets to inject"); |
1da177e4 | 3860 | module_param(pg_delay_d, int, 0); |
c3d2f52d | 3861 | MODULE_PARM_DESC(pg_delay_d, "Default delay between packets (nanoseconds)"); |
1da177e4 | 3862 | module_param(pg_clone_skb_d, int, 0); |
c3d2f52d | 3863 | MODULE_PARM_DESC(pg_clone_skb_d, "Default number of copies of the same packet"); |
1da177e4 | 3864 | module_param(debug, int, 0); |
c3d2f52d | 3865 | MODULE_PARM_DESC(debug, "Enable debugging of pktgen module"); |