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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 | 117 | */ |
f9467eae JP |
118 | |
119 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
120 | ||
1da177e4 LT |
121 | #include <linux/sys.h> |
122 | #include <linux/types.h> | |
123 | #include <linux/module.h> | |
124 | #include <linux/moduleparam.h> | |
125 | #include <linux/kernel.h> | |
222fa076 | 126 | #include <linux/mutex.h> |
1da177e4 LT |
127 | #include <linux/sched.h> |
128 | #include <linux/slab.h> | |
129 | #include <linux/vmalloc.h> | |
1da177e4 LT |
130 | #include <linux/unistd.h> |
131 | #include <linux/string.h> | |
132 | #include <linux/ptrace.h> | |
133 | #include <linux/errno.h> | |
134 | #include <linux/ioport.h> | |
135 | #include <linux/interrupt.h> | |
4fc268d2 | 136 | #include <linux/capability.h> |
2bc481cf | 137 | #include <linux/hrtimer.h> |
09fe3ef4 | 138 | #include <linux/freezer.h> |
1da177e4 LT |
139 | #include <linux/delay.h> |
140 | #include <linux/timer.h> | |
cdcdbe0b | 141 | #include <linux/list.h> |
1da177e4 LT |
142 | #include <linux/init.h> |
143 | #include <linux/skbuff.h> | |
144 | #include <linux/netdevice.h> | |
145 | #include <linux/inet.h> | |
146 | #include <linux/inetdevice.h> | |
147 | #include <linux/rtnetlink.h> | |
148 | #include <linux/if_arp.h> | |
34954ddc | 149 | #include <linux/if_vlan.h> |
1da177e4 LT |
150 | #include <linux/in.h> |
151 | #include <linux/ip.h> | |
152 | #include <linux/ipv6.h> | |
153 | #include <linux/udp.h> | |
154 | #include <linux/proc_fs.h> | |
d50a6b56 | 155 | #include <linux/seq_file.h> |
1da177e4 | 156 | #include <linux/wait.h> |
f404e9a6 | 157 | #include <linux/etherdevice.h> |
ee74baa7 | 158 | #include <linux/kthread.h> |
457c4cbc | 159 | #include <net/net_namespace.h> |
1da177e4 LT |
160 | #include <net/checksum.h> |
161 | #include <net/ipv6.h> | |
162 | #include <net/addrconf.h> | |
a553e4a6 JHS |
163 | #ifdef CONFIG_XFRM |
164 | #include <net/xfrm.h> | |
165 | #endif | |
1da177e4 LT |
166 | #include <asm/byteorder.h> |
167 | #include <linux/rcupdate.h> | |
1977f032 | 168 | #include <linux/bitops.h> |
63adc6fb SH |
169 | #include <linux/io.h> |
170 | #include <linux/timex.h> | |
171 | #include <linux/uaccess.h> | |
1da177e4 | 172 | #include <asm/dma.h> |
222f1806 | 173 | #include <asm/div64.h> /* do_div */ |
1da177e4 | 174 | |
43d28b65 | 175 | #define VERSION "2.74" |
1da177e4 | 176 | #define IP_NAME_SZ 32 |
ca6549af | 177 | #define MAX_MPLS_LABELS 16 /* This is the max label stack depth */ |
d5f1ce9a | 178 | #define MPLS_STACK_BOTTOM htonl(0x00000100) |
1da177e4 | 179 | |
f9467eae JP |
180 | #define func_enter() pr_debug("entering %s\n", __func__); |
181 | ||
1da177e4 | 182 | /* Device flag bits */ |
222f1806 LC |
183 | #define F_IPSRC_RND (1<<0) /* IP-Src Random */ |
184 | #define F_IPDST_RND (1<<1) /* IP-Dst Random */ | |
185 | #define F_UDPSRC_RND (1<<2) /* UDP-Src Random */ | |
186 | #define F_UDPDST_RND (1<<3) /* UDP-Dst Random */ | |
187 | #define F_MACSRC_RND (1<<4) /* MAC-Src Random */ | |
188 | #define F_MACDST_RND (1<<5) /* MAC-Dst Random */ | |
189 | #define F_TXSIZE_RND (1<<6) /* Transmit size is random */ | |
190 | #define F_IPV6 (1<<7) /* Interface in IPV6 Mode */ | |
ca6549af | 191 | #define F_MPLS_RND (1<<8) /* Random MPLS labels */ |
34954ddc FF |
192 | #define F_VID_RND (1<<9) /* Random VLAN ID */ |
193 | #define F_SVID_RND (1<<10) /* Random SVLAN ID */ | |
007a531b | 194 | #define F_FLOW_SEQ (1<<11) /* Sequential flows */ |
a553e4a6 | 195 | #define F_IPSEC_ON (1<<12) /* ipsec on for flows */ |
45b270f8 | 196 | #define F_QUEUE_MAP_RND (1<<13) /* queue map Random */ |
e6fce5b9 | 197 | #define F_QUEUE_MAP_CPU (1<<14) /* queue map mirrors smp_processor_id() */ |
e99b99b4 | 198 | #define F_NODE (1<<15) /* Node memory alloc*/ |
1da177e4 LT |
199 | |
200 | /* Thread control flag bits */ | |
6b80d6a6 SH |
201 | #define T_STOP (1<<0) /* Stop run */ |
202 | #define T_RUN (1<<1) /* Start run */ | |
203 | #define T_REMDEVALL (1<<2) /* Remove all devs */ | |
204 | #define T_REMDEV (1<<3) /* Remove one dev */ | |
1da177e4 | 205 | |
1da177e4 LT |
206 | /* If lock -- can be removed after some work */ |
207 | #define if_lock(t) spin_lock(&(t->if_lock)); | |
208 | #define if_unlock(t) spin_unlock(&(t->if_lock)); | |
209 | ||
210 | /* Used to help with determining the pkts on receive */ | |
211 | #define PKTGEN_MAGIC 0xbe9be955 | |
d50a6b56 SH |
212 | #define PG_PROC_DIR "pktgen" |
213 | #define PGCTRL "pgctrl" | |
63adc6fb | 214 | static struct proc_dir_entry *pg_proc_dir; |
1da177e4 LT |
215 | |
216 | #define MAX_CFLOWS 65536 | |
217 | ||
34954ddc FF |
218 | #define VLAN_TAG_SIZE(x) ((x)->vlan_id == 0xffff ? 0 : 4) |
219 | #define SVLAN_TAG_SIZE(x) ((x)->svlan_id == 0xffff ? 0 : 4) | |
220 | ||
222f1806 | 221 | struct flow_state { |
252e3346 | 222 | __be32 cur_daddr; |
222f1806 | 223 | int count; |
a553e4a6 JHS |
224 | #ifdef CONFIG_XFRM |
225 | struct xfrm_state *x; | |
226 | #endif | |
007a531b | 227 | __u32 flags; |
1da177e4 LT |
228 | }; |
229 | ||
007a531b JHS |
230 | /* flow flag bits */ |
231 | #define F_INIT (1<<0) /* flow has been initialized */ | |
232 | ||
1da177e4 | 233 | struct pktgen_dev { |
1da177e4 LT |
234 | /* |
235 | * Try to keep frequent/infrequent used vars. separated. | |
236 | */ | |
39df232f SH |
237 | struct proc_dir_entry *entry; /* proc file */ |
238 | struct pktgen_thread *pg_thread;/* the owner */ | |
63adc6fb | 239 | struct list_head list; /* chaining in the thread's run-queue */ |
1da177e4 | 240 | |
63adc6fb | 241 | int running; /* if false, the test will stop */ |
1da177e4 | 242 | |
222f1806 LC |
243 | /* If min != max, then we will either do a linear iteration, or |
244 | * we will do a random selection from within the range. | |
245 | */ | |
246 | __u32 flags; | |
95ed63f7 AK |
247 | int removal_mark; /* non-zero => the device is marked for |
248 | * removal by worker thread */ | |
1da177e4 | 249 | |
222f1806 LC |
250 | int min_pkt_size; /* = ETH_ZLEN; */ |
251 | int max_pkt_size; /* = ETH_ZLEN; */ | |
16dab72f | 252 | int pkt_overhead; /* overhead for MPLS, VLANs, IPSEC etc */ |
222f1806 | 253 | int nfrags; |
26ad7879 | 254 | struct page *page; |
fd29cf72 SH |
255 | u64 delay; /* nano-seconds */ |
256 | ||
222f1806 LC |
257 | __u64 count; /* Default No packets to send */ |
258 | __u64 sofar; /* How many pkts we've sent so far */ | |
259 | __u64 tx_bytes; /* How many bytes we've transmitted */ | |
f466dba1 | 260 | __u64 errors; /* Errors when trying to transmit, */ |
222f1806 LC |
261 | |
262 | /* runtime counters relating to clone_skb */ | |
222f1806 LC |
263 | |
264 | __u64 allocated_skbs; | |
265 | __u32 clone_count; | |
266 | int last_ok; /* Was last skb sent? | |
63adc6fb SH |
267 | * Or a failed transmit of some sort? |
268 | * This will keep sequence numbers in order | |
222f1806 | 269 | */ |
fd29cf72 SH |
270 | ktime_t next_tx; |
271 | ktime_t started_at; | |
272 | ktime_t stopped_at; | |
273 | u64 idle_acc; /* nano-seconds */ | |
274 | ||
222f1806 LC |
275 | __u32 seq_num; |
276 | ||
63adc6fb SH |
277 | int clone_skb; /* |
278 | * Use multiple SKBs during packet gen. | |
279 | * If this number is greater than 1, then | |
280 | * that many copies of the same packet will be | |
281 | * sent before a new packet is allocated. | |
282 | * If you want to send 1024 identical packets | |
283 | * before creating a new packet, | |
284 | * set clone_skb to 1024. | |
222f1806 LC |
285 | */ |
286 | ||
287 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
288 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
289 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
290 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
291 | ||
292 | struct in6_addr in6_saddr; | |
293 | struct in6_addr in6_daddr; | |
294 | struct in6_addr cur_in6_daddr; | |
295 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 296 | /* For ranges */ |
222f1806 LC |
297 | struct in6_addr min_in6_daddr; |
298 | struct in6_addr max_in6_daddr; | |
299 | struct in6_addr min_in6_saddr; | |
300 | struct in6_addr max_in6_saddr; | |
301 | ||
302 | /* If we're doing ranges, random or incremental, then this | |
303 | * defines the min/max for those ranges. | |
304 | */ | |
252e3346 AV |
305 | __be32 saddr_min; /* inclusive, source IP address */ |
306 | __be32 saddr_max; /* exclusive, source IP address */ | |
307 | __be32 daddr_min; /* inclusive, dest IP address */ | |
308 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
309 | |
310 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
311 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
312 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
313 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
314 | ||
1ca7768c | 315 | /* DSCP + ECN */ |
63adc6fb SH |
316 | __u8 tos; /* six MSB of (former) IPv4 TOS |
317 | are for dscp codepoint */ | |
318 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 | |
319 | (see RFC 3260, sec. 4) */ | |
1ca7768c | 320 | |
ca6549af SW |
321 | /* MPLS */ |
322 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
323 | __be32 labels[MAX_MPLS_LABELS]; | |
324 | ||
34954ddc FF |
325 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
326 | __u8 vlan_p; | |
327 | __u8 vlan_cfi; | |
328 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
329 | ||
330 | __u8 svlan_p; | |
331 | __u8 svlan_cfi; | |
332 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
333 | ||
222f1806 LC |
334 | __u32 src_mac_count; /* How many MACs to iterate through */ |
335 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
336 | ||
337 | unsigned char dst_mac[ETH_ALEN]; | |
338 | unsigned char src_mac[ETH_ALEN]; | |
339 | ||
340 | __u32 cur_dst_mac_offset; | |
341 | __u32 cur_src_mac_offset; | |
252e3346 AV |
342 | __be32 cur_saddr; |
343 | __be32 cur_daddr; | |
66ed1e5e | 344 | __u16 ip_id; |
222f1806 LC |
345 | __u16 cur_udp_dst; |
346 | __u16 cur_udp_src; | |
45b270f8 | 347 | __u16 cur_queue_map; |
222f1806 | 348 | __u32 cur_pkt_size; |
baac8564 | 349 | __u32 last_pkt_size; |
222f1806 LC |
350 | |
351 | __u8 hh[14]; | |
352 | /* = { | |
353 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
354 | ||
355 | We fill in SRC address later | |
356 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
357 | 0x08, 0x00 | |
358 | }; | |
359 | */ | |
360 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
361 | ||
63adc6fb | 362 | struct sk_buff *skb; /* skb we are to transmit next, used for when we |
222f1806 LC |
363 | * are transmitting the same one multiple times |
364 | */ | |
63adc6fb SH |
365 | struct net_device *odev; /* The out-going device. |
366 | * Note that the device should have it's | |
367 | * pg_info pointer pointing back to this | |
368 | * device. | |
369 | * Set when the user specifies the out-going | |
370 | * device name (not when the inject is | |
371 | * started as it used to do.) | |
372 | */ | |
593f63b0 | 373 | char odevname[32]; |
1da177e4 | 374 | struct flow_state *flows; |
222f1806 LC |
375 | unsigned cflows; /* Concurrent flows (config) */ |
376 | unsigned lflow; /* Flow length (config) */ | |
377 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 378 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
379 | |
380 | u16 queue_map_min; | |
381 | u16 queue_map_max; | |
9e50e3ac | 382 | __u32 skb_priority; /* skb priority field */ |
e99b99b4 | 383 | int node; /* Memory node */ |
45b270f8 | 384 | |
a553e4a6 JHS |
385 | #ifdef CONFIG_XFRM |
386 | __u8 ipsmode; /* IPSEC mode (config) */ | |
387 | __u8 ipsproto; /* IPSEC type (config) */ | |
388 | #endif | |
39df232f | 389 | char result[512]; |
1da177e4 LT |
390 | }; |
391 | ||
392 | struct pktgen_hdr { | |
252e3346 AV |
393 | __be32 pgh_magic; |
394 | __be32 seq_num; | |
395 | __be32 tv_sec; | |
396 | __be32 tv_usec; | |
1da177e4 LT |
397 | }; |
398 | ||
551eaff1 ED |
399 | static bool pktgen_exiting __read_mostly; |
400 | ||
1da177e4 | 401 | struct pktgen_thread { |
63adc6fb | 402 | spinlock_t if_lock; /* for list of devices */ |
c26a8016 | 403 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 404 | struct list_head th_list; |
ee74baa7 | 405 | struct task_struct *tsk; |
222f1806 | 406 | char result[512]; |
222f1806 | 407 | |
63adc6fb SH |
408 | /* Field for thread to receive "posted" events terminate, |
409 | stop ifs etc. */ | |
222f1806 LC |
410 | |
411 | u32 control; | |
1da177e4 LT |
412 | int cpu; |
413 | ||
222f1806 | 414 | wait_queue_head_t queue; |
d3ede327 | 415 | struct completion start_done; |
1da177e4 LT |
416 | }; |
417 | ||
418 | #define REMOVE 1 | |
419 | #define FIND 0 | |
420 | ||
fd29cf72 | 421 | static inline ktime_t ktime_now(void) |
1da177e4 | 422 | { |
fd29cf72 SH |
423 | struct timespec ts; |
424 | ktime_get_ts(&ts); | |
425 | ||
426 | return timespec_to_ktime(ts); | |
1da177e4 LT |
427 | } |
428 | ||
fd29cf72 SH |
429 | /* This works even if 32 bit because of careful byte order choice */ |
430 | static inline int ktime_lt(const ktime_t cmp1, const ktime_t cmp2) | |
1da177e4 | 431 | { |
fd29cf72 | 432 | return cmp1.tv64 < cmp2.tv64; |
1da177e4 LT |
433 | } |
434 | ||
c3d2f52d | 435 | static const char version[] = |
f9467eae JP |
436 | "Packet Generator for packet performance testing. " |
437 | "Version: " VERSION "\n"; | |
1da177e4 | 438 | |
222f1806 LC |
439 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
440 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
441 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
3e984840 | 442 | const char *ifname, bool exact); |
1da177e4 LT |
443 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
444 | static void pktgen_run_all_threads(void); | |
eb37b41c | 445 | static void pktgen_reset_all_threads(void); |
1da177e4 | 446 | static void pktgen_stop_all_threads_ifs(void); |
3bda06a3 | 447 | |
222f1806 | 448 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 449 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 450 | |
222f1806 LC |
451 | static unsigned int scan_ip6(const char *s, char ip[16]); |
452 | static unsigned int fmt_ip6(char *s, const char ip[16]); | |
1da177e4 LT |
453 | |
454 | /* Module parameters, defaults. */ | |
65c5b786 SH |
455 | static int pg_count_d __read_mostly = 1000; |
456 | static int pg_delay_d __read_mostly; | |
457 | static int pg_clone_skb_d __read_mostly; | |
458 | static int debug __read_mostly; | |
1da177e4 | 459 | |
222fa076 | 460 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 461 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 462 | |
1da177e4 LT |
463 | static struct notifier_block pktgen_notifier_block = { |
464 | .notifier_call = pktgen_device_event, | |
465 | }; | |
466 | ||
1da177e4 | 467 | /* |
4ec93edb | 468 | * /proc handling functions |
1da177e4 LT |
469 | * |
470 | */ | |
471 | ||
d50a6b56 | 472 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 473 | { |
c3d2f52d | 474 | seq_puts(seq, version); |
d50a6b56 | 475 | return 0; |
1da177e4 LT |
476 | } |
477 | ||
63adc6fb SH |
478 | static ssize_t pgctrl_write(struct file *file, const char __user *buf, |
479 | size_t count, loff_t *ppos) | |
1da177e4 | 480 | { |
1da177e4 | 481 | int err = 0; |
d50a6b56 | 482 | char data[128]; |
1da177e4 | 483 | |
222f1806 LC |
484 | if (!capable(CAP_NET_ADMIN)) { |
485 | err = -EPERM; | |
1da177e4 | 486 | goto out; |
222f1806 | 487 | } |
1da177e4 | 488 | |
d50a6b56 SH |
489 | if (count > sizeof(data)) |
490 | count = sizeof(data); | |
1da177e4 | 491 | |
1da177e4 | 492 | if (copy_from_user(data, buf, count)) { |
b4099fab | 493 | err = -EFAULT; |
d50a6b56 | 494 | goto out; |
222f1806 LC |
495 | } |
496 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 497 | |
222f1806 | 498 | if (!strcmp(data, "stop")) |
1da177e4 LT |
499 | pktgen_stop_all_threads_ifs(); |
500 | ||
222f1806 | 501 | else if (!strcmp(data, "start")) |
1da177e4 LT |
502 | pktgen_run_all_threads(); |
503 | ||
eb37b41c JB |
504 | else if (!strcmp(data, "reset")) |
505 | pktgen_reset_all_threads(); | |
506 | ||
222f1806 | 507 | else |
f9467eae | 508 | pr_warning("Unknown command: %s\n", data); |
1da177e4 LT |
509 | |
510 | err = count; | |
511 | ||
222f1806 LC |
512 | out: |
513 | return err; | |
1da177e4 LT |
514 | } |
515 | ||
d50a6b56 SH |
516 | static int pgctrl_open(struct inode *inode, struct file *file) |
517 | { | |
518 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
519 | } | |
520 | ||
9a32144e | 521 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
522 | .owner = THIS_MODULE, |
523 | .open = pgctrl_open, | |
524 | .read = seq_read, | |
525 | .llseek = seq_lseek, | |
526 | .write = pgctrl_write, | |
527 | .release = single_release, | |
d50a6b56 SH |
528 | }; |
529 | ||
530 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 531 | { |
648fda74 | 532 | const struct pktgen_dev *pkt_dev = seq->private; |
fd29cf72 SH |
533 | ktime_t stopped; |
534 | u64 idle; | |
222f1806 LC |
535 | |
536 | seq_printf(seq, | |
537 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
538 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
539 | pkt_dev->max_pkt_size); | |
540 | ||
541 | seq_printf(seq, | |
fd29cf72 SH |
542 | " frags: %d delay: %llu clone_skb: %d ifname: %s\n", |
543 | pkt_dev->nfrags, (unsigned long long) pkt_dev->delay, | |
593f63b0 | 544 | pkt_dev->clone_skb, pkt_dev->odevname); |
222f1806 LC |
545 | |
546 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
547 | pkt_dev->lflow); | |
548 | ||
45b270f8 RO |
549 | seq_printf(seq, |
550 | " queue_map_min: %u queue_map_max: %u\n", | |
551 | pkt_dev->queue_map_min, | |
552 | pkt_dev->queue_map_max); | |
553 | ||
9e50e3ac JF |
554 | if (pkt_dev->skb_priority) |
555 | seq_printf(seq, " skb_priority: %u\n", | |
556 | pkt_dev->skb_priority); | |
557 | ||
222f1806 LC |
558 | if (pkt_dev->flags & F_IPV6) { |
559 | char b1[128], b2[128], b3[128]; | |
560 | fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr); | |
561 | fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr); | |
562 | fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr); | |
563 | seq_printf(seq, | |
564 | " saddr: %s min_saddr: %s max_saddr: %s\n", b1, | |
565 | b2, b3); | |
566 | ||
567 | fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr); | |
568 | fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr); | |
569 | fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr); | |
570 | seq_printf(seq, | |
571 | " daddr: %s min_daddr: %s max_daddr: %s\n", b1, | |
572 | b2, b3); | |
573 | ||
63adc6fb SH |
574 | } else { |
575 | seq_printf(seq, | |
576 | " dst_min: %s dst_max: %s\n", | |
577 | pkt_dev->dst_min, pkt_dev->dst_max); | |
222f1806 | 578 | seq_printf(seq, |
63adc6fb SH |
579 | " src_min: %s src_max: %s\n", |
580 | pkt_dev->src_min, pkt_dev->src_max); | |
581 | } | |
1da177e4 | 582 | |
222f1806 | 583 | seq_puts(seq, " src_mac: "); |
1da177e4 | 584 | |
e174961c JB |
585 | seq_printf(seq, "%pM ", |
586 | is_zero_ether_addr(pkt_dev->src_mac) ? | |
587 | pkt_dev->odev->dev_addr : pkt_dev->src_mac); | |
222f1806 LC |
588 | |
589 | seq_printf(seq, "dst_mac: "); | |
e174961c | 590 | seq_printf(seq, "%pM\n", pkt_dev->dst_mac); |
222f1806 LC |
591 | |
592 | seq_printf(seq, | |
63adc6fb SH |
593 | " udp_src_min: %d udp_src_max: %d" |
594 | " udp_dst_min: %d udp_dst_max: %d\n", | |
222f1806 LC |
595 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, |
596 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
597 | ||
598 | seq_printf(seq, | |
ca6549af | 599 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 600 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 601 | |
ca6549af SW |
602 | if (pkt_dev->nr_labels) { |
603 | unsigned i; | |
604 | seq_printf(seq, " mpls: "); | |
e71a4783 | 605 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
606 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
607 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
608 | } | |
609 | ||
63adc6fb | 610 | if (pkt_dev->vlan_id != 0xffff) |
34954ddc | 611 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
612 | pkt_dev->vlan_id, pkt_dev->vlan_p, |
613 | pkt_dev->vlan_cfi); | |
34954ddc | 614 | |
63adc6fb | 615 | if (pkt_dev->svlan_id != 0xffff) |
34954ddc | 616 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
617 | pkt_dev->svlan_id, pkt_dev->svlan_p, |
618 | pkt_dev->svlan_cfi); | |
34954ddc | 619 | |
63adc6fb | 620 | if (pkt_dev->tos) |
1ca7768c | 621 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); |
1ca7768c | 622 | |
63adc6fb | 623 | if (pkt_dev->traffic_class) |
1ca7768c | 624 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); |
1ca7768c | 625 | |
e99b99b4 RO |
626 | if (pkt_dev->node >= 0) |
627 | seq_printf(seq, " node: %d\n", pkt_dev->node); | |
628 | ||
ca6549af SW |
629 | seq_printf(seq, " Flags: "); |
630 | ||
222f1806 LC |
631 | if (pkt_dev->flags & F_IPV6) |
632 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 633 | |
222f1806 LC |
634 | if (pkt_dev->flags & F_IPSRC_RND) |
635 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 636 | |
222f1806 LC |
637 | if (pkt_dev->flags & F_IPDST_RND) |
638 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 639 | |
222f1806 LC |
640 | if (pkt_dev->flags & F_TXSIZE_RND) |
641 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 642 | |
222f1806 LC |
643 | if (pkt_dev->flags & F_UDPSRC_RND) |
644 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 645 | |
222f1806 LC |
646 | if (pkt_dev->flags & F_UDPDST_RND) |
647 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 648 | |
ca6549af SW |
649 | if (pkt_dev->flags & F_MPLS_RND) |
650 | seq_printf(seq, "MPLS_RND "); | |
651 | ||
45b270f8 RO |
652 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
653 | seq_printf(seq, "QUEUE_MAP_RND "); | |
654 | ||
e6fce5b9 RO |
655 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) |
656 | seq_printf(seq, "QUEUE_MAP_CPU "); | |
657 | ||
007a531b JHS |
658 | if (pkt_dev->cflows) { |
659 | if (pkt_dev->flags & F_FLOW_SEQ) | |
660 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
661 | else | |
662 | seq_printf(seq, "FLOW_RND "); | |
663 | } | |
664 | ||
a553e4a6 JHS |
665 | #ifdef CONFIG_XFRM |
666 | if (pkt_dev->flags & F_IPSEC_ON) | |
667 | seq_printf(seq, "IPSEC "); | |
668 | #endif | |
669 | ||
222f1806 LC |
670 | if (pkt_dev->flags & F_MACSRC_RND) |
671 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 672 | |
222f1806 LC |
673 | if (pkt_dev->flags & F_MACDST_RND) |
674 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 675 | |
34954ddc FF |
676 | if (pkt_dev->flags & F_VID_RND) |
677 | seq_printf(seq, "VID_RND "); | |
678 | ||
679 | if (pkt_dev->flags & F_SVID_RND) | |
680 | seq_printf(seq, "SVID_RND "); | |
681 | ||
e99b99b4 RO |
682 | if (pkt_dev->flags & F_NODE) |
683 | seq_printf(seq, "NODE_ALLOC "); | |
684 | ||
222f1806 LC |
685 | seq_puts(seq, "\n"); |
686 | ||
fd29cf72 SH |
687 | /* not really stopped, more like last-running-at */ |
688 | stopped = pkt_dev->running ? ktime_now() : pkt_dev->stopped_at; | |
689 | idle = pkt_dev->idle_acc; | |
690 | do_div(idle, NSEC_PER_USEC); | |
1da177e4 | 691 | |
222f1806 | 692 | seq_printf(seq, |
fd29cf72 | 693 | "Current:\n pkts-sofar: %llu errors: %llu\n", |
222f1806 | 694 | (unsigned long long)pkt_dev->sofar, |
fd29cf72 SH |
695 | (unsigned long long)pkt_dev->errors); |
696 | ||
697 | seq_printf(seq, | |
698 | " started: %lluus stopped: %lluus idle: %lluus\n", | |
699 | (unsigned long long) ktime_to_us(pkt_dev->started_at), | |
700 | (unsigned long long) ktime_to_us(stopped), | |
701 | (unsigned long long) idle); | |
1da177e4 | 702 | |
222f1806 LC |
703 | seq_printf(seq, |
704 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
705 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
706 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 707 | |
222f1806 | 708 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 709 | char b1[128], b2[128]; |
222f1806 LC |
710 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
711 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
712 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
713 | } else | |
714 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 715 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 716 | |
222f1806 | 717 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 718 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 719 | |
45b270f8 RO |
720 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
721 | ||
222f1806 | 722 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
723 | |
724 | if (pkt_dev->result[0]) | |
222f1806 | 725 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 726 | else |
222f1806 | 727 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 728 | |
d50a6b56 | 729 | return 0; |
1da177e4 LT |
730 | } |
731 | ||
ca6549af | 732 | |
63adc6fb SH |
733 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, |
734 | __u32 *num) | |
ca6549af SW |
735 | { |
736 | int i = 0; | |
737 | *num = 0; | |
738 | ||
e71a4783 | 739 | for (; i < maxlen; i++) { |
82fd5b5d | 740 | int value; |
ca6549af SW |
741 | char c; |
742 | *num <<= 4; | |
743 | if (get_user(c, &user_buffer[i])) | |
744 | return -EFAULT; | |
82fd5b5d AS |
745 | value = hex_to_bin(c); |
746 | if (value >= 0) | |
747 | *num |= value; | |
ca6549af SW |
748 | else |
749 | break; | |
750 | } | |
751 | return i; | |
752 | } | |
753 | ||
222f1806 LC |
754 | static int count_trail_chars(const char __user * user_buffer, |
755 | unsigned int maxlen) | |
1da177e4 LT |
756 | { |
757 | int i; | |
758 | ||
759 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
760 | char c; |
761 | if (get_user(c, &user_buffer[i])) | |
762 | return -EFAULT; | |
763 | switch (c) { | |
1da177e4 LT |
764 | case '\"': |
765 | case '\n': | |
766 | case '\r': | |
767 | case '\t': | |
768 | case ' ': | |
769 | case '=': | |
770 | break; | |
771 | default: | |
772 | goto done; | |
3ff50b79 | 773 | } |
1da177e4 LT |
774 | } |
775 | done: | |
776 | return i; | |
777 | } | |
778 | ||
222f1806 LC |
779 | static unsigned long num_arg(const char __user * user_buffer, |
780 | unsigned long maxlen, unsigned long *num) | |
1da177e4 | 781 | { |
d6182223 | 782 | int i; |
1da177e4 | 783 | *num = 0; |
222f1806 | 784 | |
d6182223 | 785 | for (i = 0; i < maxlen; i++) { |
222f1806 LC |
786 | char c; |
787 | if (get_user(c, &user_buffer[i])) | |
788 | return -EFAULT; | |
789 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 790 | *num *= 10; |
222f1806 | 791 | *num += c - '0'; |
1da177e4 LT |
792 | } else |
793 | break; | |
794 | } | |
795 | return i; | |
796 | } | |
797 | ||
222f1806 | 798 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 | 799 | { |
d6182223 | 800 | int i; |
1da177e4 | 801 | |
d6182223 | 802 | for (i = 0; i < maxlen; i++) { |
222f1806 LC |
803 | char c; |
804 | if (get_user(c, &user_buffer[i])) | |
805 | return -EFAULT; | |
806 | switch (c) { | |
1da177e4 LT |
807 | case '\"': |
808 | case '\n': | |
809 | case '\r': | |
810 | case '\t': | |
811 | case ' ': | |
812 | goto done_str; | |
813 | break; | |
814 | default: | |
815 | break; | |
3ff50b79 | 816 | } |
1da177e4 LT |
817 | } |
818 | done_str: | |
1da177e4 LT |
819 | return i; |
820 | } | |
821 | ||
ca6549af SW |
822 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
823 | { | |
824 | unsigned n = 0; | |
825 | char c; | |
826 | ssize_t i = 0; | |
827 | int len; | |
828 | ||
829 | pkt_dev->nr_labels = 0; | |
830 | do { | |
831 | __u32 tmp; | |
1ca7768c | 832 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
833 | if (len <= 0) |
834 | return len; | |
835 | pkt_dev->labels[n] = htonl(tmp); | |
836 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
837 | pkt_dev->flags |= F_MPLS_RND; | |
838 | i += len; | |
839 | if (get_user(c, &buffer[i])) | |
840 | return -EFAULT; | |
841 | i++; | |
842 | n++; | |
843 | if (n >= MAX_MPLS_LABELS) | |
844 | return -E2BIG; | |
e71a4783 | 845 | } while (c == ','); |
ca6549af SW |
846 | |
847 | pkt_dev->nr_labels = n; | |
848 | return i; | |
849 | } | |
850 | ||
222f1806 LC |
851 | static ssize_t pktgen_if_write(struct file *file, |
852 | const char __user * user_buffer, size_t count, | |
853 | loff_t * offset) | |
1da177e4 | 854 | { |
8a994a71 | 855 | struct seq_file *seq = file->private_data; |
222f1806 | 856 | struct pktgen_dev *pkt_dev = seq->private; |
d6182223 | 857 | int i, max, len; |
1da177e4 LT |
858 | char name[16], valstr[32]; |
859 | unsigned long value = 0; | |
222f1806 LC |
860 | char *pg_result = NULL; |
861 | int tmp = 0; | |
1da177e4 | 862 | char buf[128]; |
222f1806 LC |
863 | |
864 | pg_result = &(pkt_dev->result[0]); | |
865 | ||
1da177e4 | 866 | if (count < 1) { |
f9467eae | 867 | pr_warning("wrong command format\n"); |
1da177e4 LT |
868 | return -EINVAL; |
869 | } | |
222f1806 | 870 | |
d6182223 PG |
871 | max = count; |
872 | tmp = count_trail_chars(user_buffer, max); | |
222f1806 | 873 | if (tmp < 0) { |
f9467eae | 874 | pr_warning("illegal format\n"); |
222f1806 | 875 | return tmp; |
1da177e4 | 876 | } |
d6182223 | 877 | i = tmp; |
222f1806 | 878 | |
1da177e4 LT |
879 | /* Read variable name */ |
880 | ||
881 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
63adc6fb | 882 | if (len < 0) |
222f1806 | 883 | return len; |
63adc6fb | 884 | |
1da177e4 | 885 | memset(name, 0, sizeof(name)); |
222f1806 | 886 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
887 | return -EFAULT; |
888 | i += len; | |
222f1806 LC |
889 | |
890 | max = count - i; | |
1da177e4 | 891 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
892 | if (len < 0) |
893 | return len; | |
894 | ||
1da177e4 LT |
895 | i += len; |
896 | ||
897 | if (debug) { | |
86c2c0a8 | 898 | size_t copy = min_t(size_t, count, 1023); |
448d7b5d NE |
899 | char tb[copy + 1]; |
900 | if (copy_from_user(tb, user_buffer, copy)) | |
1da177e4 | 901 | return -EFAULT; |
448d7b5d | 902 | tb[copy] = 0; |
25a8b254 | 903 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
904 | (unsigned long)count, tb); |
905 | } | |
1da177e4 LT |
906 | |
907 | if (!strcmp(name, "min_pkt_size")) { | |
908 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 909 | if (len < 0) |
222f1806 | 910 | return len; |
63adc6fb | 911 | |
1da177e4 | 912 | i += len; |
222f1806 LC |
913 | if (value < 14 + 20 + 8) |
914 | value = 14 + 20 + 8; | |
915 | if (value != pkt_dev->min_pkt_size) { | |
916 | pkt_dev->min_pkt_size = value; | |
917 | pkt_dev->cur_pkt_size = value; | |
918 | } | |
919 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
920 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
921 | return count; |
922 | } | |
923 | ||
222f1806 | 924 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 925 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 926 | if (len < 0) |
222f1806 | 927 | return len; |
63adc6fb | 928 | |
1da177e4 | 929 | i += len; |
222f1806 LC |
930 | if (value < 14 + 20 + 8) |
931 | value = 14 + 20 + 8; | |
932 | if (value != pkt_dev->max_pkt_size) { | |
933 | pkt_dev->max_pkt_size = value; | |
934 | pkt_dev->cur_pkt_size = value; | |
935 | } | |
936 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
937 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
938 | return count; |
939 | } | |
940 | ||
222f1806 | 941 | /* Shortcut for min = max */ |
1da177e4 LT |
942 | |
943 | if (!strcmp(name, "pkt_size")) { | |
944 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 945 | if (len < 0) |
222f1806 | 946 | return len; |
63adc6fb | 947 | |
1da177e4 | 948 | i += len; |
222f1806 LC |
949 | if (value < 14 + 20 + 8) |
950 | value = 14 + 20 + 8; | |
951 | if (value != pkt_dev->min_pkt_size) { | |
952 | pkt_dev->min_pkt_size = value; | |
953 | pkt_dev->max_pkt_size = value; | |
954 | pkt_dev->cur_pkt_size = value; | |
955 | } | |
1da177e4 LT |
956 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
957 | return count; | |
958 | } | |
959 | ||
222f1806 | 960 | if (!strcmp(name, "debug")) { |
1da177e4 | 961 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 962 | if (len < 0) |
222f1806 | 963 | return len; |
63adc6fb | 964 | |
1da177e4 | 965 | i += len; |
222f1806 | 966 | debug = value; |
1da177e4 LT |
967 | sprintf(pg_result, "OK: debug=%u", debug); |
968 | return count; | |
969 | } | |
970 | ||
222f1806 | 971 | if (!strcmp(name, "frags")) { |
1da177e4 | 972 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 973 | if (len < 0) |
222f1806 | 974 | return len; |
63adc6fb | 975 | |
1da177e4 LT |
976 | i += len; |
977 | pkt_dev->nfrags = value; | |
978 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
979 | return count; | |
980 | } | |
981 | if (!strcmp(name, "delay")) { | |
982 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 983 | if (len < 0) |
222f1806 | 984 | return len; |
63adc6fb | 985 | |
1da177e4 | 986 | i += len; |
fd29cf72 SH |
987 | if (value == 0x7FFFFFFF) |
988 | pkt_dev->delay = ULLONG_MAX; | |
989 | else | |
9240d715 | 990 | pkt_dev->delay = (u64)value; |
fd29cf72 SH |
991 | |
992 | sprintf(pg_result, "OK: delay=%llu", | |
993 | (unsigned long long) pkt_dev->delay); | |
1da177e4 LT |
994 | return count; |
995 | } | |
43d28b65 DT |
996 | if (!strcmp(name, "rate")) { |
997 | len = num_arg(&user_buffer[i], 10, &value); | |
998 | if (len < 0) | |
999 | return len; | |
1000 | ||
1001 | i += len; | |
1002 | if (!value) | |
1003 | return len; | |
1004 | pkt_dev->delay = pkt_dev->min_pkt_size*8*NSEC_PER_USEC/value; | |
1005 | if (debug) | |
f9467eae | 1006 | pr_info("Delay set at: %llu ns\n", pkt_dev->delay); |
43d28b65 DT |
1007 | |
1008 | sprintf(pg_result, "OK: rate=%lu", value); | |
1009 | return count; | |
1010 | } | |
1011 | if (!strcmp(name, "ratep")) { | |
1012 | len = num_arg(&user_buffer[i], 10, &value); | |
1013 | if (len < 0) | |
1014 | return len; | |
1015 | ||
1016 | i += len; | |
1017 | if (!value) | |
1018 | return len; | |
1019 | pkt_dev->delay = NSEC_PER_SEC/value; | |
1020 | if (debug) | |
f9467eae | 1021 | pr_info("Delay set at: %llu ns\n", pkt_dev->delay); |
43d28b65 DT |
1022 | |
1023 | sprintf(pg_result, "OK: rate=%lu", value); | |
1024 | return count; | |
1025 | } | |
222f1806 | 1026 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 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 | if (value != pkt_dev->udp_src_min) { |
1033 | pkt_dev->udp_src_min = value; | |
1034 | pkt_dev->cur_udp_src = value; | |
1035 | } | |
1da177e4 LT |
1036 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
1037 | return count; | |
1038 | } | |
222f1806 | 1039 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 1040 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1041 | if (len < 0) |
222f1806 | 1042 | return len; |
63adc6fb | 1043 | |
1da177e4 | 1044 | i += len; |
222f1806 LC |
1045 | if (value != pkt_dev->udp_dst_min) { |
1046 | pkt_dev->udp_dst_min = value; | |
1047 | pkt_dev->cur_udp_dst = value; | |
1048 | } | |
1da177e4 LT |
1049 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
1050 | return count; | |
1051 | } | |
222f1806 | 1052 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 1053 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1054 | if (len < 0) |
222f1806 | 1055 | return len; |
63adc6fb | 1056 | |
1da177e4 | 1057 | i += len; |
222f1806 LC |
1058 | if (value != pkt_dev->udp_src_max) { |
1059 | pkt_dev->udp_src_max = value; | |
1060 | pkt_dev->cur_udp_src = value; | |
1061 | } | |
1da177e4 LT |
1062 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
1063 | return count; | |
1064 | } | |
222f1806 | 1065 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 1066 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1067 | if (len < 0) |
222f1806 | 1068 | return len; |
63adc6fb | 1069 | |
1da177e4 | 1070 | i += len; |
222f1806 LC |
1071 | if (value != pkt_dev->udp_dst_max) { |
1072 | pkt_dev->udp_dst_max = value; | |
1073 | pkt_dev->cur_udp_dst = value; | |
1074 | } | |
1da177e4 LT |
1075 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1076 | return count; | |
1077 | } | |
1078 | if (!strcmp(name, "clone_skb")) { | |
1079 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1080 | if (len < 0) |
222f1806 | 1081 | return len; |
63adc6fb | 1082 | |
1da177e4 | 1083 | i += len; |
222f1806 LC |
1084 | pkt_dev->clone_skb = value; |
1085 | ||
1da177e4 LT |
1086 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1087 | return count; | |
1088 | } | |
1089 | if (!strcmp(name, "count")) { | |
1090 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1091 | if (len < 0) |
222f1806 | 1092 | return len; |
63adc6fb | 1093 | |
1da177e4 LT |
1094 | i += len; |
1095 | pkt_dev->count = value; | |
1096 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1097 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1098 | return count; |
1099 | } | |
1100 | if (!strcmp(name, "src_mac_count")) { | |
1101 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1102 | if (len < 0) |
222f1806 | 1103 | return len; |
63adc6fb | 1104 | |
1da177e4 LT |
1105 | i += len; |
1106 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1107 | pkt_dev->src_mac_count = value; |
1108 | pkt_dev->cur_src_mac_offset = 0; | |
1109 | } | |
1110 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1111 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1112 | return count; |
1113 | } | |
1114 | if (!strcmp(name, "dst_mac_count")) { | |
1115 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1116 | if (len < 0) |
222f1806 | 1117 | return len; |
63adc6fb | 1118 | |
1da177e4 LT |
1119 | i += len; |
1120 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1121 | pkt_dev->dst_mac_count = value; |
1122 | pkt_dev->cur_dst_mac_offset = 0; | |
1123 | } | |
1124 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1125 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1126 | return count; |
1127 | } | |
e99b99b4 RO |
1128 | if (!strcmp(name, "node")) { |
1129 | len = num_arg(&user_buffer[i], 10, &value); | |
1130 | if (len < 0) | |
1131 | return len; | |
1132 | ||
1133 | i += len; | |
1134 | ||
1135 | if (node_possible(value)) { | |
1136 | pkt_dev->node = value; | |
1137 | sprintf(pg_result, "OK: node=%d", pkt_dev->node); | |
26ad7879 ED |
1138 | if (pkt_dev->page) { |
1139 | put_page(pkt_dev->page); | |
1140 | pkt_dev->page = NULL; | |
1141 | } | |
e99b99b4 RO |
1142 | } |
1143 | else | |
1144 | sprintf(pg_result, "ERROR: node not possible"); | |
1145 | return count; | |
1146 | } | |
1da177e4 | 1147 | if (!strcmp(name, "flag")) { |
222f1806 LC |
1148 | char f[32]; |
1149 | memset(f, 0, 32); | |
1da177e4 | 1150 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
63adc6fb | 1151 | if (len < 0) |
222f1806 | 1152 | return len; |
63adc6fb | 1153 | |
1da177e4 LT |
1154 | if (copy_from_user(f, &user_buffer[i], len)) |
1155 | return -EFAULT; | |
1156 | i += len; | |
222f1806 LC |
1157 | if (strcmp(f, "IPSRC_RND") == 0) |
1158 | pkt_dev->flags |= F_IPSRC_RND; | |
1159 | ||
1160 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1161 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1162 | ||
1163 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1164 | pkt_dev->flags |= F_TXSIZE_RND; | |
1165 | ||
1166 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1167 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1168 | ||
1169 | else if (strcmp(f, "IPDST_RND") == 0) | |
1170 | pkt_dev->flags |= F_IPDST_RND; | |
1171 | ||
1172 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1173 | pkt_dev->flags &= ~F_IPDST_RND; | |
1174 | ||
1175 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1176 | pkt_dev->flags |= F_UDPSRC_RND; | |
1177 | ||
1178 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1179 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1180 | ||
1181 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1182 | pkt_dev->flags |= F_UDPDST_RND; | |
1183 | ||
1184 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1185 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1186 | ||
1187 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1188 | pkt_dev->flags |= F_MACSRC_RND; | |
1189 | ||
1190 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1191 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1192 | ||
1193 | else if (strcmp(f, "MACDST_RND") == 0) | |
1194 | pkt_dev->flags |= F_MACDST_RND; | |
1195 | ||
1196 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1197 | pkt_dev->flags &= ~F_MACDST_RND; | |
1198 | ||
ca6549af SW |
1199 | else if (strcmp(f, "MPLS_RND") == 0) |
1200 | pkt_dev->flags |= F_MPLS_RND; | |
1201 | ||
1202 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1203 | pkt_dev->flags &= ~F_MPLS_RND; | |
1204 | ||
34954ddc FF |
1205 | else if (strcmp(f, "VID_RND") == 0) |
1206 | pkt_dev->flags |= F_VID_RND; | |
1207 | ||
1208 | else if (strcmp(f, "!VID_RND") == 0) | |
1209 | pkt_dev->flags &= ~F_VID_RND; | |
1210 | ||
1211 | else if (strcmp(f, "SVID_RND") == 0) | |
1212 | pkt_dev->flags |= F_SVID_RND; | |
1213 | ||
1214 | else if (strcmp(f, "!SVID_RND") == 0) | |
1215 | pkt_dev->flags &= ~F_SVID_RND; | |
1216 | ||
007a531b JHS |
1217 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1218 | pkt_dev->flags |= F_FLOW_SEQ; | |
1219 | ||
45b270f8 RO |
1220 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1221 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1222 | ||
1223 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1224 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
e6fce5b9 RO |
1225 | |
1226 | else if (strcmp(f, "QUEUE_MAP_CPU") == 0) | |
1227 | pkt_dev->flags |= F_QUEUE_MAP_CPU; | |
1228 | ||
1229 | else if (strcmp(f, "!QUEUE_MAP_CPU") == 0) | |
1230 | pkt_dev->flags &= ~F_QUEUE_MAP_CPU; | |
a553e4a6 JHS |
1231 | #ifdef CONFIG_XFRM |
1232 | else if (strcmp(f, "IPSEC") == 0) | |
1233 | pkt_dev->flags |= F_IPSEC_ON; | |
1234 | #endif | |
1235 | ||
1ca7768c FF |
1236 | else if (strcmp(f, "!IPV6") == 0) |
1237 | pkt_dev->flags &= ~F_IPV6; | |
1238 | ||
e99b99b4 RO |
1239 | else if (strcmp(f, "NODE_ALLOC") == 0) |
1240 | pkt_dev->flags |= F_NODE; | |
1241 | ||
1242 | else if (strcmp(f, "!NODE_ALLOC") == 0) | |
1243 | pkt_dev->flags &= ~F_NODE; | |
1244 | ||
222f1806 LC |
1245 | else { |
1246 | sprintf(pg_result, | |
1247 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1248 | f, | |
1ca7768c | 1249 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
e99b99b4 | 1250 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC, NODE_ALLOC\n"); |
222f1806 LC |
1251 | return count; |
1252 | } | |
1da177e4 LT |
1253 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1254 | return count; | |
1255 | } | |
1256 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1257 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
63adc6fb | 1258 | if (len < 0) |
222f1806 | 1259 | return len; |
1da177e4 | 1260 | |
222f1806 | 1261 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1262 | return -EFAULT; |
222f1806 LC |
1263 | buf[len] = 0; |
1264 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1265 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1266 | strncpy(pkt_dev->dst_min, buf, len); | |
1267 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1268 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1269 | } | |
1270 | if (debug) | |
25a8b254 | 1271 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1272 | pkt_dev->dst_min); |
1273 | i += len; | |
1da177e4 LT |
1274 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1275 | return count; | |
1276 | } | |
1277 | if (!strcmp(name, "dst_max")) { | |
1278 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
63adc6fb | 1279 | if (len < 0) |
222f1806 | 1280 | return len; |
63adc6fb | 1281 | |
1da177e4 | 1282 | |
222f1806 | 1283 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1284 | return -EFAULT; |
1285 | ||
222f1806 LC |
1286 | buf[len] = 0; |
1287 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1288 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1289 | strncpy(pkt_dev->dst_max, buf, len); | |
1290 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1291 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1292 | } | |
1293 | if (debug) | |
25a8b254 | 1294 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1295 | pkt_dev->dst_max); |
1da177e4 LT |
1296 | i += len; |
1297 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1298 | return count; | |
1299 | } | |
1300 | if (!strcmp(name, "dst6")) { | |
1301 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1302 | if (len < 0) |
1303 | return len; | |
1da177e4 LT |
1304 | |
1305 | pkt_dev->flags |= F_IPV6; | |
1306 | ||
222f1806 | 1307 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1308 | return -EFAULT; |
222f1806 | 1309 | buf[len] = 0; |
1da177e4 LT |
1310 | |
1311 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1312 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1313 | |
1314 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1315 | ||
222f1806 | 1316 | if (debug) |
25a8b254 | 1317 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1318 | |
222f1806 | 1319 | i += len; |
1da177e4 LT |
1320 | sprintf(pg_result, "OK: dst6=%s", buf); |
1321 | return count; | |
1322 | } | |
1323 | if (!strcmp(name, "dst6_min")) { | |
1324 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1325 | if (len < 0) |
1326 | return len; | |
1da177e4 LT |
1327 | |
1328 | pkt_dev->flags |= F_IPV6; | |
1329 | ||
222f1806 | 1330 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1331 | return -EFAULT; |
222f1806 | 1332 | buf[len] = 0; |
1da177e4 LT |
1333 | |
1334 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1335 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1336 | |
222f1806 LC |
1337 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1338 | &pkt_dev->min_in6_daddr); | |
1339 | if (debug) | |
25a8b254 | 1340 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1341 | |
222f1806 | 1342 | i += len; |
1da177e4 LT |
1343 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1344 | return count; | |
1345 | } | |
1346 | if (!strcmp(name, "dst6_max")) { | |
1347 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1348 | if (len < 0) |
1349 | return len; | |
1da177e4 LT |
1350 | |
1351 | pkt_dev->flags |= F_IPV6; | |
1352 | ||
222f1806 | 1353 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1354 | return -EFAULT; |
222f1806 | 1355 | buf[len] = 0; |
1da177e4 LT |
1356 | |
1357 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1358 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1359 | |
222f1806 | 1360 | if (debug) |
25a8b254 | 1361 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1362 | |
222f1806 | 1363 | i += len; |
1da177e4 LT |
1364 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1365 | return count; | |
1366 | } | |
1367 | if (!strcmp(name, "src6")) { | |
1368 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1369 | if (len < 0) |
1370 | return len; | |
1da177e4 LT |
1371 | |
1372 | pkt_dev->flags |= F_IPV6; | |
1373 | ||
222f1806 | 1374 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1375 | return -EFAULT; |
222f1806 | 1376 | buf[len] = 0; |
1da177e4 LT |
1377 | |
1378 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1379 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1380 | |
1381 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1382 | ||
222f1806 | 1383 | if (debug) |
25a8b254 | 1384 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1385 | |
1386 | i += len; | |
1da177e4 LT |
1387 | sprintf(pg_result, "OK: src6=%s", buf); |
1388 | return count; | |
1389 | } | |
1390 | if (!strcmp(name, "src_min")) { | |
1391 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
63adc6fb | 1392 | if (len < 0) |
222f1806 | 1393 | return len; |
63adc6fb | 1394 | |
222f1806 | 1395 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1396 | return -EFAULT; |
222f1806 LC |
1397 | buf[len] = 0; |
1398 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1399 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1400 | strncpy(pkt_dev->src_min, buf, len); | |
1401 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1402 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1403 | } | |
1404 | if (debug) | |
25a8b254 | 1405 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1406 | pkt_dev->src_min); |
1da177e4 LT |
1407 | i += len; |
1408 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1409 | return count; | |
1410 | } | |
1411 | if (!strcmp(name, "src_max")) { | |
1412 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
63adc6fb | 1413 | if (len < 0) |
222f1806 | 1414 | return len; |
63adc6fb | 1415 | |
222f1806 | 1416 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1417 | return -EFAULT; |
222f1806 LC |
1418 | buf[len] = 0; |
1419 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1420 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1421 | strncpy(pkt_dev->src_max, buf, len); | |
1422 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1423 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1424 | } | |
1425 | if (debug) | |
25a8b254 | 1426 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1427 | pkt_dev->src_max); |
1da177e4 LT |
1428 | i += len; |
1429 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1430 | return count; | |
1431 | } | |
1432 | if (!strcmp(name, "dst_mac")) { | |
1433 | char *v = valstr; | |
f404e9a6 | 1434 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1435 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1436 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1437 | |
1da177e4 | 1438 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1439 | if (len < 0) |
222f1806 | 1440 | return len; |
63adc6fb | 1441 | |
1da177e4 | 1442 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1443 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1444 | return -EFAULT; |
1445 | i += len; | |
1446 | ||
222f1806 | 1447 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
451e07a2 AS |
1448 | int value; |
1449 | ||
1450 | value = hex_to_bin(*v); | |
1451 | if (value >= 0) | |
1452 | *m = *m * 16 + value; | |
1453 | ||
1da177e4 LT |
1454 | if (*v == ':') { |
1455 | m++; | |
1456 | *m = 0; | |
1457 | } | |
1458 | } | |
1459 | ||
1460 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1461 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1462 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1463 | |
1da177e4 LT |
1464 | sprintf(pg_result, "OK: dstmac"); |
1465 | return count; | |
1466 | } | |
1467 | if (!strcmp(name, "src_mac")) { | |
1468 | char *v = valstr; | |
ce5d0b47 | 1469 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1470 | unsigned char *m = pkt_dev->src_mac; |
1471 | ||
ce5d0b47 AR |
1472 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1473 | ||
1da177e4 | 1474 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1475 | if (len < 0) |
222f1806 | 1476 | return len; |
63adc6fb | 1477 | |
1da177e4 | 1478 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1479 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1480 | return -EFAULT; |
1481 | i += len; | |
1482 | ||
222f1806 | 1483 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
451e07a2 AS |
1484 | int value; |
1485 | ||
1486 | value = hex_to_bin(*v); | |
1487 | if (value >= 0) | |
1488 | *m = *m * 16 + value; | |
1489 | ||
1da177e4 LT |
1490 | if (*v == ':') { |
1491 | m++; | |
1492 | *m = 0; | |
1493 | } | |
222f1806 | 1494 | } |
1da177e4 | 1495 | |
ce5d0b47 AR |
1496 | /* Set up Src MAC */ |
1497 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1498 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1499 | ||
222f1806 | 1500 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1501 | return count; |
1502 | } | |
1503 | ||
222f1806 LC |
1504 | if (!strcmp(name, "clear_counters")) { |
1505 | pktgen_clear_counters(pkt_dev); | |
1506 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1507 | return count; | |
1508 | } | |
1da177e4 LT |
1509 | |
1510 | if (!strcmp(name, "flows")) { | |
1511 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1512 | if (len < 0) |
222f1806 | 1513 | return len; |
63adc6fb | 1514 | |
1da177e4 LT |
1515 | i += len; |
1516 | if (value > MAX_CFLOWS) | |
1517 | value = MAX_CFLOWS; | |
1518 | ||
1519 | pkt_dev->cflows = value; | |
1520 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1521 | return count; | |
1522 | } | |
1523 | ||
1524 | if (!strcmp(name, "flowlen")) { | |
1525 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1526 | if (len < 0) |
222f1806 | 1527 | return len; |
63adc6fb | 1528 | |
1da177e4 LT |
1529 | i += len; |
1530 | pkt_dev->lflow = value; | |
1531 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1532 | return count; | |
1533 | } | |
222f1806 | 1534 | |
45b270f8 RO |
1535 | if (!strcmp(name, "queue_map_min")) { |
1536 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1537 | if (len < 0) |
45b270f8 | 1538 | return len; |
63adc6fb | 1539 | |
45b270f8 RO |
1540 | i += len; |
1541 | pkt_dev->queue_map_min = value; | |
1542 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1543 | return count; | |
1544 | } | |
1545 | ||
1546 | if (!strcmp(name, "queue_map_max")) { | |
1547 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1548 | if (len < 0) |
45b270f8 | 1549 | return len; |
63adc6fb | 1550 | |
45b270f8 RO |
1551 | i += len; |
1552 | pkt_dev->queue_map_max = value; | |
1553 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1554 | return count; | |
1555 | } | |
1556 | ||
ca6549af | 1557 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1558 | unsigned n, cnt; |
1559 | ||
ca6549af | 1560 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1561 | if (len < 0) |
1562 | return len; | |
ca6549af | 1563 | i += len; |
cfcabdcc | 1564 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1565 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1566 | cnt += sprintf(pg_result + cnt, |
1567 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1568 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1569 | |
1570 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1571 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1572 | pkt_dev->svlan_id = 0xffff; | |
1573 | ||
1574 | if (debug) | |
25a8b254 | 1575 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1576 | } |
1577 | return count; | |
1578 | } | |
1579 | ||
1580 | if (!strcmp(name, "vlan_id")) { | |
1581 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1582 | if (len < 0) |
34954ddc | 1583 | return len; |
63adc6fb | 1584 | |
34954ddc FF |
1585 | i += len; |
1586 | if (value <= 4095) { | |
1587 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1588 | ||
1589 | if (debug) | |
25a8b254 | 1590 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1591 | |
1592 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1593 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1594 | |
1595 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1596 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1597 | } else { | |
1598 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1599 | pkt_dev->svlan_id = 0xffff; | |
1600 | ||
1601 | if (debug) | |
25a8b254 | 1602 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1603 | } |
1604 | return count; | |
1605 | } | |
1606 | ||
1607 | if (!strcmp(name, "vlan_p")) { | |
1608 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1609 | if (len < 0) |
34954ddc | 1610 | return len; |
63adc6fb | 1611 | |
34954ddc FF |
1612 | i += len; |
1613 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1614 | pkt_dev->vlan_p = value; | |
1615 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1616 | } else { | |
1617 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1618 | } | |
1619 | return count; | |
1620 | } | |
1621 | ||
1622 | if (!strcmp(name, "vlan_cfi")) { | |
1623 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1624 | if (len < 0) |
34954ddc | 1625 | return len; |
63adc6fb | 1626 | |
34954ddc FF |
1627 | i += len; |
1628 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1629 | pkt_dev->vlan_cfi = value; | |
1630 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1631 | } else { | |
1632 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1633 | } | |
1634 | return count; | |
1635 | } | |
1636 | ||
1637 | if (!strcmp(name, "svlan_id")) { | |
1638 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1639 | if (len < 0) |
34954ddc | 1640 | return len; |
63adc6fb | 1641 | |
34954ddc FF |
1642 | i += len; |
1643 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1644 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1645 | ||
1646 | if (debug) | |
25a8b254 | 1647 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1648 | |
1649 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1650 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1651 | |
1652 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1653 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1654 | } else { | |
1655 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1656 | pkt_dev->svlan_id = 0xffff; | |
1657 | ||
1658 | if (debug) | |
25a8b254 | 1659 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1660 | } |
1661 | return count; | |
1662 | } | |
1663 | ||
1664 | if (!strcmp(name, "svlan_p")) { | |
1665 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1666 | if (len < 0) |
34954ddc | 1667 | return len; |
63adc6fb | 1668 | |
34954ddc FF |
1669 | i += len; |
1670 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1671 | pkt_dev->svlan_p = value; | |
1672 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1673 | } else { | |
1674 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1675 | } | |
1676 | return count; | |
1677 | } | |
1678 | ||
1679 | if (!strcmp(name, "svlan_cfi")) { | |
1680 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1681 | if (len < 0) |
34954ddc | 1682 | return len; |
63adc6fb | 1683 | |
34954ddc FF |
1684 | i += len; |
1685 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1686 | pkt_dev->svlan_cfi = value; | |
1687 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1688 | } else { | |
1689 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1690 | } | |
ca6549af SW |
1691 | return count; |
1692 | } | |
1693 | ||
1ca7768c FF |
1694 | if (!strcmp(name, "tos")) { |
1695 | __u32 tmp_value = 0; | |
1696 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1697 | if (len < 0) |
1ca7768c | 1698 | return len; |
63adc6fb | 1699 | |
1ca7768c FF |
1700 | i += len; |
1701 | if (len == 2) { | |
1702 | pkt_dev->tos = tmp_value; | |
1703 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1704 | } else { | |
1705 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1706 | } | |
1707 | return count; | |
1708 | } | |
1709 | ||
1710 | if (!strcmp(name, "traffic_class")) { | |
1711 | __u32 tmp_value = 0; | |
1712 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1713 | if (len < 0) |
1ca7768c | 1714 | return len; |
63adc6fb | 1715 | |
1ca7768c FF |
1716 | i += len; |
1717 | if (len == 2) { | |
1718 | pkt_dev->traffic_class = tmp_value; | |
1719 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1720 | } else { | |
1721 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1722 | } | |
1723 | return count; | |
1724 | } | |
1725 | ||
9e50e3ac JF |
1726 | if (!strcmp(name, "skb_priority")) { |
1727 | len = num_arg(&user_buffer[i], 9, &value); | |
1728 | if (len < 0) | |
1729 | return len; | |
1730 | ||
1731 | i += len; | |
1732 | pkt_dev->skb_priority = value; | |
1733 | sprintf(pg_result, "OK: skb_priority=%i", | |
1734 | pkt_dev->skb_priority); | |
1735 | return count; | |
1736 | } | |
1737 | ||
1da177e4 LT |
1738 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1739 | return -EINVAL; | |
1740 | } | |
1741 | ||
d50a6b56 | 1742 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1743 | { |
d50a6b56 SH |
1744 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1745 | } | |
1da177e4 | 1746 | |
9a32144e | 1747 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1748 | .owner = THIS_MODULE, |
1749 | .open = pktgen_if_open, | |
1750 | .read = seq_read, | |
1751 | .llseek = seq_lseek, | |
1752 | .write = pktgen_if_write, | |
1753 | .release = single_release, | |
d50a6b56 | 1754 | }; |
1da177e4 | 1755 | |
d50a6b56 SH |
1756 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1757 | { | |
222f1806 | 1758 | struct pktgen_thread *t = seq->private; |
648fda74 | 1759 | const struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1760 | |
1761 | BUG_ON(!t); | |
1da177e4 | 1762 | |
222f1806 | 1763 | seq_printf(seq, "Running: "); |
1da177e4 | 1764 | |
222f1806 | 1765 | if_lock(t); |
c26a8016 | 1766 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1767 | if (pkt_dev->running) |
593f63b0 | 1768 | seq_printf(seq, "%s ", pkt_dev->odevname); |
1da177e4 | 1769 | |
222f1806 LC |
1770 | seq_printf(seq, "\nStopped: "); |
1771 | ||
c26a8016 | 1772 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1773 | if (!pkt_dev->running) |
593f63b0 | 1774 | seq_printf(seq, "%s ", pkt_dev->odevname); |
1da177e4 LT |
1775 | |
1776 | if (t->result[0]) | |
d50a6b56 | 1777 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1778 | else |
d50a6b56 | 1779 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1780 | |
222f1806 | 1781 | if_unlock(t); |
1da177e4 | 1782 | |
d50a6b56 | 1783 | return 0; |
1da177e4 LT |
1784 | } |
1785 | ||
d50a6b56 | 1786 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1787 | const char __user * user_buffer, |
1788 | size_t count, loff_t * offset) | |
1da177e4 | 1789 | { |
8a994a71 | 1790 | struct seq_file *seq = file->private_data; |
222f1806 | 1791 | struct pktgen_thread *t = seq->private; |
d6182223 | 1792 | int i, max, len, ret; |
1da177e4 | 1793 | char name[40]; |
222f1806 | 1794 | char *pg_result; |
d50a6b56 | 1795 | |
1da177e4 | 1796 | if (count < 1) { |
222f1806 | 1797 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1798 | return -EINVAL; |
1799 | } | |
d50a6b56 | 1800 | |
d6182223 PG |
1801 | max = count; |
1802 | len = count_trail_chars(user_buffer, max); | |
222f1806 | 1803 | if (len < 0) |
d50a6b56 SH |
1804 | return len; |
1805 | ||
d6182223 | 1806 | i = len; |
d50a6b56 | 1807 | |
1da177e4 LT |
1808 | /* Read variable name */ |
1809 | ||
1810 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1811 | if (len < 0) |
d50a6b56 | 1812 | return len; |
222f1806 | 1813 | |
1da177e4 LT |
1814 | memset(name, 0, sizeof(name)); |
1815 | if (copy_from_user(name, &user_buffer[i], len)) | |
1816 | return -EFAULT; | |
1817 | i += len; | |
d50a6b56 | 1818 | |
222f1806 | 1819 | max = count - i; |
1da177e4 | 1820 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1821 | if (len < 0) |
d50a6b56 SH |
1822 | return len; |
1823 | ||
1da177e4 LT |
1824 | i += len; |
1825 | ||
d50a6b56 | 1826 | if (debug) |
25a8b254 DM |
1827 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1828 | name, (unsigned long)count); | |
1da177e4 | 1829 | |
222f1806 | 1830 | if (!t) { |
f9467eae | 1831 | pr_err("ERROR: No thread\n"); |
1da177e4 LT |
1832 | ret = -EINVAL; |
1833 | goto out; | |
1834 | } | |
1835 | ||
1836 | pg_result = &(t->result[0]); | |
1837 | ||
222f1806 LC |
1838 | if (!strcmp(name, "add_device")) { |
1839 | char f[32]; | |
1840 | memset(f, 0, 32); | |
1da177e4 | 1841 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1842 | if (len < 0) { |
1843 | ret = len; | |
1da177e4 LT |
1844 | goto out; |
1845 | } | |
222f1806 | 1846 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1847 | return -EFAULT; |
1848 | i += len; | |
6146e6a4 | 1849 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1850 | pktgen_add_device(t, f); |
6146e6a4 | 1851 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1852 | ret = count; |
1853 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1854 | goto out; |
1855 | } | |
1856 | ||
222f1806 | 1857 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1858 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1859 | t->control |= T_REMDEVALL; |
6146e6a4 | 1860 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1861 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1862 | ret = count; |
222f1806 | 1863 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1864 | goto out; |
1865 | } | |
1866 | ||
222f1806 | 1867 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1868 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1869 | ret = count; |
1da177e4 LT |
1870 | goto out; |
1871 | } | |
1872 | ||
1873 | ret = -EINVAL; | |
222f1806 | 1874 | out: |
1da177e4 LT |
1875 | return ret; |
1876 | } | |
1877 | ||
d50a6b56 | 1878 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1879 | { |
d50a6b56 | 1880 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1881 | } |
1882 | ||
9a32144e | 1883 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1884 | .owner = THIS_MODULE, |
1885 | .open = pktgen_thread_open, | |
1886 | .read = seq_read, | |
1887 | .llseek = seq_lseek, | |
1888 | .write = pktgen_thread_write, | |
1889 | .release = single_release, | |
d50a6b56 | 1890 | }; |
1da177e4 LT |
1891 | |
1892 | /* Think find or remove for NN */ | |
222f1806 | 1893 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1894 | { |
1895 | struct pktgen_thread *t; | |
1896 | struct pktgen_dev *pkt_dev = NULL; | |
3e984840 | 1897 | bool exact = (remove == FIND); |
1da177e4 | 1898 | |
cdcdbe0b | 1899 | list_for_each_entry(t, &pktgen_threads, th_list) { |
3e984840 | 1900 | pkt_dev = pktgen_find_dev(t, ifname, exact); |
1da177e4 | 1901 | if (pkt_dev) { |
222f1806 LC |
1902 | if (remove) { |
1903 | if_lock(t); | |
1904 | pkt_dev->removal_mark = 1; | |
1905 | t->control |= T_REMDEV; | |
1906 | if_unlock(t); | |
1907 | } | |
1da177e4 LT |
1908 | break; |
1909 | } | |
1da177e4 | 1910 | } |
222f1806 | 1911 | return pkt_dev; |
1da177e4 LT |
1912 | } |
1913 | ||
95ed63f7 AK |
1914 | /* |
1915 | * mark a device for removal | |
1916 | */ | |
39df232f | 1917 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1918 | { |
1919 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1920 | const int max_tries = 10, msec_per_try = 125; |
1921 | int i = 0; | |
95ed63f7 | 1922 | |
6146e6a4 | 1923 | mutex_lock(&pktgen_thread_lock); |
f9467eae | 1924 | pr_debug("%s: marking %s for removal\n", __func__, ifname); |
95ed63f7 | 1925 | |
222f1806 | 1926 | while (1) { |
95ed63f7 AK |
1927 | |
1928 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1929 | if (pkt_dev == NULL) |
1930 | break; /* success */ | |
95ed63f7 | 1931 | |
6146e6a4 | 1932 | mutex_unlock(&pktgen_thread_lock); |
f9467eae JP |
1933 | pr_debug("%s: waiting for %s to disappear....\n", |
1934 | __func__, ifname); | |
95ed63f7 | 1935 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1936 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1937 | |
1938 | if (++i >= max_tries) { | |
f9467eae JP |
1939 | pr_err("%s: timed out after waiting %d msec for device %s to be removed\n", |
1940 | __func__, msec_per_try * i, ifname); | |
95ed63f7 AK |
1941 | break; |
1942 | } | |
1943 | ||
1944 | } | |
1945 | ||
6146e6a4 | 1946 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1947 | } |
95ed63f7 | 1948 | |
39df232f SH |
1949 | static void pktgen_change_name(struct net_device *dev) |
1950 | { | |
1951 | struct pktgen_thread *t; | |
1952 | ||
1953 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1954 | struct pktgen_dev *pkt_dev; | |
1955 | ||
1956 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1957 | if (pkt_dev->odev != dev) | |
1958 | continue; | |
1959 | ||
1960 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1961 | ||
2975315b AD |
1962 | pkt_dev->entry = proc_create_data(dev->name, 0600, |
1963 | pg_proc_dir, | |
1964 | &pktgen_if_fops, | |
1965 | pkt_dev); | |
39df232f | 1966 | if (!pkt_dev->entry) |
f9467eae JP |
1967 | pr_err("can't move proc entry for '%s'\n", |
1968 | dev->name); | |
39df232f SH |
1969 | break; |
1970 | } | |
1971 | } | |
1da177e4 LT |
1972 | } |
1973 | ||
222f1806 LC |
1974 | static int pktgen_device_event(struct notifier_block *unused, |
1975 | unsigned long event, void *ptr) | |
1da177e4 | 1976 | { |
39df232f | 1977 | struct net_device *dev = ptr; |
1da177e4 | 1978 | |
721499e8 | 1979 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
1980 | return NOTIFY_DONE; |
1981 | ||
1da177e4 LT |
1982 | /* It is OK that we do not hold the group lock right now, |
1983 | * as we run under the RTNL lock. | |
1984 | */ | |
1985 | ||
1986 | switch (event) { | |
39df232f SH |
1987 | case NETDEV_CHANGENAME: |
1988 | pktgen_change_name(dev); | |
1da177e4 | 1989 | break; |
222f1806 | 1990 | |
1da177e4 | 1991 | case NETDEV_UNREGISTER: |
222f1806 | 1992 | pktgen_mark_device(dev->name); |
1da177e4 | 1993 | break; |
3ff50b79 | 1994 | } |
1da177e4 LT |
1995 | |
1996 | return NOTIFY_DONE; | |
1997 | } | |
1998 | ||
63adc6fb SH |
1999 | static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev, |
2000 | const char *ifname) | |
e6fce5b9 RO |
2001 | { |
2002 | char b[IFNAMSIZ+5]; | |
d6182223 | 2003 | int i; |
e6fce5b9 | 2004 | |
63adc6fb SH |
2005 | for (i = 0; ifname[i] != '@'; i++) { |
2006 | if (i == IFNAMSIZ) | |
e6fce5b9 RO |
2007 | break; |
2008 | ||
2009 | b[i] = ifname[i]; | |
2010 | } | |
2011 | b[i] = 0; | |
2012 | ||
2013 | return dev_get_by_name(&init_net, b); | |
2014 | } | |
2015 | ||
2016 | ||
1da177e4 LT |
2017 | /* Associate pktgen_dev with a device. */ |
2018 | ||
39df232f | 2019 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 2020 | { |
1da177e4 | 2021 | struct net_device *odev; |
39df232f | 2022 | int err; |
1da177e4 LT |
2023 | |
2024 | /* Clean old setups */ | |
1da177e4 LT |
2025 | if (pkt_dev->odev) { |
2026 | dev_put(pkt_dev->odev); | |
222f1806 LC |
2027 | pkt_dev->odev = NULL; |
2028 | } | |
1da177e4 | 2029 | |
e6fce5b9 | 2030 | odev = pktgen_dev_get_by_name(pkt_dev, ifname); |
1da177e4 | 2031 | if (!odev) { |
f9467eae | 2032 | pr_err("no such netdevice: \"%s\"\n", ifname); |
39df232f | 2033 | return -ENODEV; |
1da177e4 | 2034 | } |
39df232f | 2035 | |
1da177e4 | 2036 | if (odev->type != ARPHRD_ETHER) { |
f9467eae | 2037 | pr_err("not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
2038 | err = -EINVAL; |
2039 | } else if (!netif_running(odev)) { | |
f9467eae | 2040 | pr_err("device is down: \"%s\"\n", ifname); |
39df232f SH |
2041 | err = -ENETDOWN; |
2042 | } else { | |
2043 | pkt_dev->odev = odev; | |
2044 | return 0; | |
1da177e4 | 2045 | } |
1da177e4 | 2046 | |
1da177e4 | 2047 | dev_put(odev); |
39df232f | 2048 | return err; |
1da177e4 LT |
2049 | } |
2050 | ||
2051 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
2052 | * structure to have the right information to create/send packets | |
2053 | */ | |
2054 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
2055 | { | |
64c00d81 AG |
2056 | int ntxq; |
2057 | ||
222f1806 | 2058 | if (!pkt_dev->odev) { |
f9467eae | 2059 | pr_err("ERROR: pkt_dev->odev == NULL in setup_inject\n"); |
222f1806 LC |
2060 | sprintf(pkt_dev->result, |
2061 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
2062 | return; | |
2063 | } | |
2064 | ||
64c00d81 AG |
2065 | /* make sure that we don't pick a non-existing transmit queue */ |
2066 | ntxq = pkt_dev->odev->real_num_tx_queues; | |
bfdbc0ac | 2067 | |
64c00d81 | 2068 | if (ntxq <= pkt_dev->queue_map_min) { |
f9467eae JP |
2069 | pr_warning("WARNING: Requested queue_map_min (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n", |
2070 | pkt_dev->queue_map_min, (ntxq ?: 1) - 1, ntxq, | |
2071 | pkt_dev->odevname); | |
64c00d81 AG |
2072 | pkt_dev->queue_map_min = ntxq - 1; |
2073 | } | |
88271660 | 2074 | if (pkt_dev->queue_map_max >= ntxq) { |
f9467eae JP |
2075 | pr_warning("WARNING: Requested queue_map_max (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n", |
2076 | pkt_dev->queue_map_max, (ntxq ?: 1) - 1, ntxq, | |
2077 | pkt_dev->odevname); | |
64c00d81 AG |
2078 | pkt_dev->queue_map_max = ntxq - 1; |
2079 | } | |
2080 | ||
222f1806 | 2081 | /* Default to the interface's mac if not explicitly set. */ |
1da177e4 | 2082 | |
f404e9a6 | 2083 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 2084 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 2085 | |
222f1806 | 2086 | /* Set up Dest MAC */ |
f404e9a6 | 2087 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 2088 | |
222f1806 LC |
2089 | /* Set up pkt size */ |
2090 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
2091 | ||
2092 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 2093 | /* |
4ec93edb | 2094 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
2095 | * gets exported |
2096 | */ | |
2097 | ||
2098 | #ifdef NOTNOW | |
222f1806 | 2099 | int i, set = 0, err = 1; |
1da177e4 LT |
2100 | struct inet6_dev *idev; |
2101 | ||
222f1806 LC |
2102 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
2103 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
2104 | set = 1; |
2105 | break; | |
2106 | } | |
2107 | ||
222f1806 LC |
2108 | if (!set) { |
2109 | ||
1da177e4 LT |
2110 | /* |
2111 | * Use linklevel address if unconfigured. | |
2112 | * | |
2113 | * use ipv6_get_lladdr if/when it's get exported | |
2114 | */ | |
2115 | ||
8814c4b5 | 2116 | rcu_read_lock(); |
63adc6fb SH |
2117 | idev = __in6_dev_get(pkt_dev->odev); |
2118 | if (idev) { | |
1da177e4 LT |
2119 | struct inet6_ifaddr *ifp; |
2120 | ||
2121 | read_lock_bh(&idev->lock); | |
222f1806 LC |
2122 | for (ifp = idev->addr_list; ifp; |
2123 | ifp = ifp->if_next) { | |
f64f9e71 JP |
2124 | if (ifp->scope == IFA_LINK && |
2125 | !(ifp->flags & IFA_F_TENTATIVE)) { | |
222f1806 LC |
2126 | ipv6_addr_copy(&pkt_dev-> |
2127 | cur_in6_saddr, | |
2128 | &ifp->addr); | |
1da177e4 LT |
2129 | err = 0; |
2130 | break; | |
2131 | } | |
2132 | } | |
2133 | read_unlock_bh(&idev->lock); | |
2134 | } | |
8814c4b5 | 2135 | rcu_read_unlock(); |
222f1806 | 2136 | if (err) |
f9467eae | 2137 | pr_err("ERROR: IPv6 link address not available\n"); |
1da177e4 LT |
2138 | } |
2139 | #endif | |
222f1806 | 2140 | } else { |
1da177e4 LT |
2141 | pkt_dev->saddr_min = 0; |
2142 | pkt_dev->saddr_max = 0; | |
2143 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2144 | |
2145 | struct in_device *in_dev; | |
1da177e4 LT |
2146 | |
2147 | rcu_read_lock(); | |
e5ed6399 | 2148 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2149 | if (in_dev) { |
2150 | if (in_dev->ifa_list) { | |
222f1806 LC |
2151 | pkt_dev->saddr_min = |
2152 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2153 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2154 | } | |
1da177e4 LT |
2155 | } |
2156 | rcu_read_unlock(); | |
222f1806 | 2157 | } else { |
1da177e4 LT |
2158 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2159 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2160 | } | |
2161 | ||
2162 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2163 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2164 | } | |
222f1806 LC |
2165 | /* Initialize current values. */ |
2166 | pkt_dev->cur_dst_mac_offset = 0; | |
2167 | pkt_dev->cur_src_mac_offset = 0; | |
2168 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2169 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2170 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2171 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2172 | pkt_dev->nflows = 0; |
2173 | } | |
2174 | ||
fd29cf72 SH |
2175 | |
2176 | static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until) | |
2177 | { | |
ef87979c | 2178 | ktime_t start_time, end_time; |
417bc4b8 | 2179 | s64 remaining; |
2bc481cf SH |
2180 | struct hrtimer_sleeper t; |
2181 | ||
2182 | hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); | |
2183 | hrtimer_set_expires(&t.timer, spin_until); | |
2184 | ||
43d28b65 | 2185 | remaining = ktime_to_ns(hrtimer_expires_remaining(&t.timer)); |
417bc4b8 ED |
2186 | if (remaining <= 0) { |
2187 | pkt_dev->next_tx = ktime_add_ns(spin_until, pkt_dev->delay); | |
2bc481cf | 2188 | return; |
417bc4b8 | 2189 | } |
2bc481cf | 2190 | |
ef87979c | 2191 | start_time = ktime_now(); |
43d28b65 DT |
2192 | if (remaining < 100000) |
2193 | ndelay(remaining); /* really small just spin */ | |
2bc481cf SH |
2194 | else { |
2195 | /* see do_nanosleep */ | |
2196 | hrtimer_init_sleeper(&t, current); | |
2197 | do { | |
2198 | set_current_state(TASK_INTERRUPTIBLE); | |
2199 | hrtimer_start_expires(&t.timer, HRTIMER_MODE_ABS); | |
2200 | if (!hrtimer_active(&t.timer)) | |
2201 | t.task = NULL; | |
2202 | ||
2203 | if (likely(t.task)) | |
1da177e4 | 2204 | schedule(); |
1da177e4 | 2205 | |
2bc481cf SH |
2206 | hrtimer_cancel(&t.timer); |
2207 | } while (t.task && pkt_dev->running && !signal_pending(current)); | |
2208 | __set_current_state(TASK_RUNNING); | |
1da177e4 | 2209 | } |
ef87979c SH |
2210 | end_time = ktime_now(); |
2211 | ||
2212 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(end_time, start_time)); | |
07a0f0f0 | 2213 | pkt_dev->next_tx = ktime_add_ns(spin_until, pkt_dev->delay); |
1da177e4 LT |
2214 | } |
2215 | ||
16dab72f JHS |
2216 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2217 | { | |
a553e4a6 | 2218 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2219 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2220 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2221 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2222 | } | |
2223 | ||
648fda74 | 2224 | static inline int f_seen(const struct pktgen_dev *pkt_dev, int flow) |
007a531b | 2225 | { |
648fda74 | 2226 | return !!(pkt_dev->flows[flow].flags & F_INIT); |
007a531b JHS |
2227 | } |
2228 | ||
2229 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2230 | { | |
2231 | int flow = pkt_dev->curfl; | |
2232 | ||
2233 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2234 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2235 | /* reset time */ | |
2236 | pkt_dev->flows[flow].count = 0; | |
1211a645 | 2237 | pkt_dev->flows[flow].flags = 0; |
007a531b JHS |
2238 | pkt_dev->curfl += 1; |
2239 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2240 | pkt_dev->curfl = 0; /*reset */ | |
2241 | } | |
2242 | } else { | |
2243 | flow = random32() % pkt_dev->cflows; | |
1211a645 | 2244 | pkt_dev->curfl = flow; |
007a531b | 2245 | |
1211a645 | 2246 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) { |
007a531b | 2247 | pkt_dev->flows[flow].count = 0; |
1211a645 RO |
2248 | pkt_dev->flows[flow].flags = 0; |
2249 | } | |
007a531b JHS |
2250 | } |
2251 | ||
2252 | return pkt_dev->curfl; | |
2253 | } | |
2254 | ||
a553e4a6 JHS |
2255 | |
2256 | #ifdef CONFIG_XFRM | |
2257 | /* If there was already an IPSEC SA, we keep it as is, else | |
2258 | * we go look for it ... | |
2259 | */ | |
bd55775c | 2260 | #define DUMMY_MARK 0 |
fea1ab0f | 2261 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2262 | { |
2263 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2264 | if (!x) { | |
2265 | /*slow path: we dont already have xfrm_state*/ | |
bd55775c | 2266 | x = xfrm_stateonly_find(&init_net, DUMMY_MARK, |
5447c5e4 | 2267 | (xfrm_address_t *)&pkt_dev->cur_daddr, |
a553e4a6 JHS |
2268 | (xfrm_address_t *)&pkt_dev->cur_saddr, |
2269 | AF_INET, | |
2270 | pkt_dev->ipsmode, | |
2271 | pkt_dev->ipsproto, 0); | |
2272 | if (x) { | |
2273 | pkt_dev->flows[flow].x = x; | |
2274 | set_pkt_overhead(pkt_dev); | |
63adc6fb | 2275 | pkt_dev->pkt_overhead += x->props.header_len; |
a553e4a6 JHS |
2276 | } |
2277 | ||
2278 | } | |
2279 | } | |
2280 | #endif | |
fd2ea0a7 DM |
2281 | static void set_cur_queue_map(struct pktgen_dev *pkt_dev) |
2282 | { | |
e6fce5b9 RO |
2283 | |
2284 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) | |
2285 | pkt_dev->cur_queue_map = smp_processor_id(); | |
2286 | ||
896a7cf8 | 2287 | else if (pkt_dev->queue_map_min <= pkt_dev->queue_map_max) { |
fd2ea0a7 DM |
2288 | __u16 t; |
2289 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2290 | t = random32() % | |
2291 | (pkt_dev->queue_map_max - | |
2292 | pkt_dev->queue_map_min + 1) | |
2293 | + pkt_dev->queue_map_min; | |
2294 | } else { | |
2295 | t = pkt_dev->cur_queue_map + 1; | |
2296 | if (t > pkt_dev->queue_map_max) | |
2297 | t = pkt_dev->queue_map_min; | |
2298 | } | |
2299 | pkt_dev->cur_queue_map = t; | |
2300 | } | |
bfdbc0ac | 2301 | pkt_dev->cur_queue_map = pkt_dev->cur_queue_map % pkt_dev->odev->real_num_tx_queues; |
fd2ea0a7 DM |
2302 | } |
2303 | ||
1da177e4 LT |
2304 | /* Increment/randomize headers according to flags and current values |
2305 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2306 | */ | |
222f1806 LC |
2307 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2308 | { | |
2309 | __u32 imn; | |
2310 | __u32 imx; | |
2311 | int flow = 0; | |
1da177e4 | 2312 | |
007a531b JHS |
2313 | if (pkt_dev->cflows) |
2314 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2315 | |
2316 | /* Deal with source MAC */ | |
222f1806 LC |
2317 | if (pkt_dev->src_mac_count > 1) { |
2318 | __u32 mc; | |
2319 | __u32 tmp; | |
2320 | ||
2321 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2322 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2323 | else { |
2324 | mc = pkt_dev->cur_src_mac_offset++; | |
ff2a79a5 | 2325 | if (pkt_dev->cur_src_mac_offset >= |
222f1806 LC |
2326 | pkt_dev->src_mac_count) |
2327 | pkt_dev->cur_src_mac_offset = 0; | |
2328 | } | |
2329 | ||
2330 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2331 | pkt_dev->hh[11] = tmp; | |
2332 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2333 | pkt_dev->hh[10] = tmp; | |
2334 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2335 | pkt_dev->hh[9] = tmp; | |
2336 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2337 | pkt_dev->hh[8] = tmp; | |
2338 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2339 | pkt_dev->hh[7] = tmp; | |
2340 | } | |
2341 | ||
2342 | /* Deal with Destination MAC */ | |
2343 | if (pkt_dev->dst_mac_count > 1) { | |
2344 | __u32 mc; | |
2345 | __u32 tmp; | |
2346 | ||
2347 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2348 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2349 | |
2350 | else { | |
2351 | mc = pkt_dev->cur_dst_mac_offset++; | |
ff2a79a5 | 2352 | if (pkt_dev->cur_dst_mac_offset >= |
222f1806 LC |
2353 | pkt_dev->dst_mac_count) { |
2354 | pkt_dev->cur_dst_mac_offset = 0; | |
2355 | } | |
2356 | } | |
2357 | ||
2358 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2359 | pkt_dev->hh[5] = tmp; | |
2360 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2361 | pkt_dev->hh[4] = tmp; | |
2362 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2363 | pkt_dev->hh[3] = tmp; | |
2364 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2365 | pkt_dev->hh[2] = tmp; | |
2366 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2367 | pkt_dev->hh[1] = tmp; | |
2368 | } | |
2369 | ||
ca6549af SW |
2370 | if (pkt_dev->flags & F_MPLS_RND) { |
2371 | unsigned i; | |
e71a4783 | 2372 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2373 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2374 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2375 | ((__force __be32)random32() & |
ca6549af SW |
2376 | htonl(0x000fffff)); |
2377 | } | |
2378 | ||
34954ddc | 2379 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2380 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2381 | } |
2382 | ||
2383 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2384 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2385 | } |
2386 | ||
222f1806 LC |
2387 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2388 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2389 | pkt_dev->cur_udp_src = random32() % |
2390 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2391 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2392 | |
2393 | else { | |
1da177e4 LT |
2394 | pkt_dev->cur_udp_src++; |
2395 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2396 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2397 | } |
2398 | } | |
2399 | ||
2400 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2401 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2402 | pkt_dev->cur_udp_dst = random32() % |
2403 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2404 | + pkt_dev->udp_dst_min; | |
222f1806 | 2405 | } else { |
1da177e4 | 2406 | pkt_dev->cur_udp_dst++; |
222f1806 | 2407 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2408 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2409 | } |
2410 | } | |
1da177e4 LT |
2411 | |
2412 | if (!(pkt_dev->flags & F_IPV6)) { | |
2413 | ||
63adc6fb SH |
2414 | imn = ntohl(pkt_dev->saddr_min); |
2415 | imx = ntohl(pkt_dev->saddr_max); | |
2416 | if (imn < imx) { | |
1da177e4 | 2417 | __u32 t; |
222f1806 | 2418 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2419 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2420 | else { |
2421 | t = ntohl(pkt_dev->cur_saddr); | |
2422 | t++; | |
63adc6fb | 2423 | if (t > imx) |
1da177e4 | 2424 | t = imn; |
63adc6fb | 2425 | |
1da177e4 LT |
2426 | } |
2427 | pkt_dev->cur_saddr = htonl(t); | |
2428 | } | |
222f1806 | 2429 | |
007a531b | 2430 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2431 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2432 | } else { | |
252e3346 AV |
2433 | imn = ntohl(pkt_dev->daddr_min); |
2434 | imx = ntohl(pkt_dev->daddr_max); | |
2435 | if (imn < imx) { | |
1da177e4 | 2436 | __u32 t; |
252e3346 | 2437 | __be32 s; |
1da177e4 LT |
2438 | if (pkt_dev->flags & F_IPDST_RND) { |
2439 | ||
5fa6fc76 | 2440 | t = random32() % (imx - imn) + imn; |
252e3346 | 2441 | s = htonl(t); |
1da177e4 | 2442 | |
21cf2253 JP |
2443 | while (ipv4_is_loopback(s) || |
2444 | ipv4_is_multicast(s) || | |
1e637c74 | 2445 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2446 | ipv4_is_zeronet(s) || |
2447 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2448 | t = random32() % (imx - imn) + imn; |
252e3346 | 2449 | s = htonl(t); |
1da177e4 | 2450 | } |
252e3346 AV |
2451 | pkt_dev->cur_daddr = s; |
2452 | } else { | |
1da177e4 LT |
2453 | t = ntohl(pkt_dev->cur_daddr); |
2454 | t++; | |
2455 | if (t > imx) { | |
2456 | t = imn; | |
2457 | } | |
2458 | pkt_dev->cur_daddr = htonl(t); | |
2459 | } | |
2460 | } | |
222f1806 | 2461 | if (pkt_dev->cflows) { |
007a531b | 2462 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2463 | pkt_dev->flows[flow].cur_daddr = |
2464 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2465 | #ifdef CONFIG_XFRM |
2466 | if (pkt_dev->flags & F_IPSEC_ON) | |
2467 | get_ipsec_sa(pkt_dev, flow); | |
2468 | #endif | |
1da177e4 LT |
2469 | pkt_dev->nflows++; |
2470 | } | |
2471 | } | |
222f1806 LC |
2472 | } else { /* IPV6 * */ |
2473 | ||
2474 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2475 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2476 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2477 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2478 | else { |
2479 | int i; | |
2480 | ||
2481 | /* Only random destinations yet */ | |
2482 | ||
222f1806 | 2483 | for (i = 0; i < 4; i++) { |
1da177e4 | 2484 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2485 | (((__force __be32)random32() | |
222f1806 LC |
2486 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2487 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2488 | } |
222f1806 | 2489 | } |
1da177e4 LT |
2490 | } |
2491 | ||
222f1806 LC |
2492 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2493 | __u32 t; | |
2494 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2495 | t = random32() % |
2496 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2497 | + pkt_dev->min_pkt_size; | |
222f1806 | 2498 | } else { |
1da177e4 | 2499 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2500 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2501 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2502 | } |
2503 | pkt_dev->cur_pkt_size = t; | |
2504 | } | |
1da177e4 | 2505 | |
fd2ea0a7 | 2506 | set_cur_queue_map(pkt_dev); |
45b270f8 | 2507 | |
1da177e4 LT |
2508 | pkt_dev->flows[flow].count++; |
2509 | } | |
2510 | ||
a553e4a6 JHS |
2511 | |
2512 | #ifdef CONFIG_XFRM | |
2513 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2514 | { | |
2515 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2516 | int err = 0; | |
2517 | struct iphdr *iph; | |
2518 | ||
2519 | if (!x) | |
2520 | return 0; | |
2521 | /* XXX: we dont support tunnel mode for now until | |
2522 | * we resolve the dst issue */ | |
2523 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2524 | return 0; | |
2525 | ||
2526 | spin_lock(&x->lock); | |
2527 | iph = ip_hdr(skb); | |
2528 | ||
13996378 | 2529 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2530 | if (err) |
2531 | goto error; | |
2532 | err = x->type->output(x, skb); | |
2533 | if (err) | |
2534 | goto error; | |
2535 | ||
63adc6fb | 2536 | x->curlft.bytes += skb->len; |
a553e4a6 | 2537 | x->curlft.packets++; |
a553e4a6 JHS |
2538 | error: |
2539 | spin_unlock(&x->lock); | |
2540 | return err; | |
2541 | } | |
2542 | ||
475ac1e4 | 2543 | static void free_SAs(struct pktgen_dev *pkt_dev) |
a553e4a6 JHS |
2544 | { |
2545 | if (pkt_dev->cflows) { | |
2546 | /* let go of the SAs if we have them */ | |
d6182223 PG |
2547 | int i; |
2548 | for (i = 0; i < pkt_dev->cflows; i++) { | |
a553e4a6 JHS |
2549 | struct xfrm_state *x = pkt_dev->flows[i].x; |
2550 | if (x) { | |
2551 | xfrm_state_put(x); | |
2552 | pkt_dev->flows[i].x = NULL; | |
2553 | } | |
2554 | } | |
2555 | } | |
2556 | } | |
2557 | ||
475ac1e4 | 2558 | static int process_ipsec(struct pktgen_dev *pkt_dev, |
a553e4a6 JHS |
2559 | struct sk_buff *skb, __be16 protocol) |
2560 | { | |
2561 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2562 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2563 | int nhead = 0; | |
2564 | if (x) { | |
2565 | int ret; | |
2566 | __u8 *eth; | |
2567 | nhead = x->props.header_len - skb_headroom(skb); | |
63adc6fb | 2568 | if (nhead > 0) { |
a553e4a6 JHS |
2569 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); |
2570 | if (ret < 0) { | |
f9467eae JP |
2571 | pr_err("Error expanding ipsec packet %d\n", |
2572 | ret); | |
b4bb4ac8 | 2573 | goto err; |
a553e4a6 JHS |
2574 | } |
2575 | } | |
2576 | ||
2577 | /* ipsec is not expecting ll header */ | |
2578 | skb_pull(skb, ETH_HLEN); | |
2579 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2580 | if (ret) { | |
f9467eae | 2581 | pr_err("Error creating ipsec packet %d\n", ret); |
b4bb4ac8 | 2582 | goto err; |
a553e4a6 JHS |
2583 | } |
2584 | /* restore ll */ | |
2585 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2586 | memcpy(eth, pkt_dev->hh, 12); | |
63adc6fb | 2587 | *(u16 *) ð[12] = protocol; |
a553e4a6 JHS |
2588 | } |
2589 | } | |
2590 | return 1; | |
b4bb4ac8 IJ |
2591 | err: |
2592 | kfree_skb(skb); | |
2593 | return 0; | |
a553e4a6 JHS |
2594 | } |
2595 | #endif | |
2596 | ||
ca6549af SW |
2597 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2598 | { | |
2599 | unsigned i; | |
63adc6fb | 2600 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af | 2601 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
63adc6fb | 2602 | |
ca6549af SW |
2603 | mpls--; |
2604 | *mpls |= MPLS_STACK_BOTTOM; | |
2605 | } | |
2606 | ||
0f37c605 AV |
2607 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2608 | unsigned int prio) | |
2609 | { | |
2610 | return htons(id | (cfi << 12) | (prio << 13)); | |
2611 | } | |
2612 | ||
26ad7879 ED |
2613 | static void pktgen_finalize_skb(struct pktgen_dev *pkt_dev, struct sk_buff *skb, |
2614 | int datalen) | |
2615 | { | |
2616 | struct timeval timestamp; | |
2617 | struct pktgen_hdr *pgh; | |
2618 | ||
2619 | pgh = (struct pktgen_hdr *)skb_put(skb, sizeof(*pgh)); | |
2620 | datalen -= sizeof(*pgh); | |
2621 | ||
2622 | if (pkt_dev->nfrags <= 0) { | |
2623 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
2624 | memset(pgh + 1, 0, datalen); | |
2625 | } else { | |
2626 | int frags = pkt_dev->nfrags; | |
2627 | int i, len; | |
2628 | ||
2629 | ||
2630 | if (frags > MAX_SKB_FRAGS) | |
2631 | frags = MAX_SKB_FRAGS; | |
2632 | len = datalen - frags * PAGE_SIZE; | |
2633 | if (len > 0) { | |
2634 | memset(skb_put(skb, len), 0, len); | |
2635 | datalen = frags * PAGE_SIZE; | |
2636 | } | |
2637 | ||
2638 | i = 0; | |
2639 | while (datalen > 0) { | |
2640 | if (unlikely(!pkt_dev->page)) { | |
2641 | int node = numa_node_id(); | |
2642 | ||
2643 | if (pkt_dev->node >= 0 && (pkt_dev->flags & F_NODE)) | |
2644 | node = pkt_dev->node; | |
2645 | pkt_dev->page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0); | |
2646 | if (!pkt_dev->page) | |
2647 | break; | |
2648 | } | |
2649 | skb_shinfo(skb)->frags[i].page = pkt_dev->page; | |
2650 | get_page(pkt_dev->page); | |
2651 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2652 | skb_shinfo(skb)->frags[i].size = | |
2653 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); | |
2654 | datalen -= skb_shinfo(skb)->frags[i].size; | |
2655 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2656 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2657 | i++; | |
2658 | skb_shinfo(skb)->nr_frags = i; | |
2659 | } | |
2660 | ||
2661 | while (i < frags) { | |
2662 | int rem; | |
2663 | ||
2664 | if (i == 0) | |
2665 | break; | |
2666 | ||
2667 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2668 | if (rem == 0) | |
2669 | break; | |
2670 | ||
2671 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2672 | ||
2673 | skb_shinfo(skb)->frags[i] = | |
2674 | skb_shinfo(skb)->frags[i - 1]; | |
2675 | get_page(skb_shinfo(skb)->frags[i].page); | |
2676 | skb_shinfo(skb)->frags[i].page = | |
2677 | skb_shinfo(skb)->frags[i - 1].page; | |
2678 | skb_shinfo(skb)->frags[i].page_offset += | |
2679 | skb_shinfo(skb)->frags[i - 1].size; | |
2680 | skb_shinfo(skb)->frags[i].size = rem; | |
2681 | i++; | |
2682 | skb_shinfo(skb)->nr_frags = i; | |
2683 | } | |
2684 | } | |
2685 | ||
2686 | /* Stamp the time, and sequence number, | |
2687 | * convert them to network byte order | |
2688 | */ | |
2689 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2690 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2691 | ||
2692 | do_gettimeofday(×tamp); | |
2693 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2694 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2695 | } | |
2696 | ||
222f1806 LC |
2697 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2698 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2699 | { |
2700 | struct sk_buff *skb = NULL; | |
2701 | __u8 *eth; | |
2702 | struct udphdr *udph; | |
2703 | int datalen, iplen; | |
2704 | struct iphdr *iph; | |
d5f1ce9a | 2705 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2706 | __be32 *mpls; |
34954ddc FF |
2707 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2708 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2709 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2710 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2711 | u16 queue_map; |
ca6549af SW |
2712 | |
2713 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2714 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2715 | |
34954ddc | 2716 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2717 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2718 | |
64053bee RO |
2719 | /* Update any of the values, used when we're incrementing various |
2720 | * fields. | |
2721 | */ | |
2722 | mod_cur_headers(pkt_dev); | |
eb589063 | 2723 | queue_map = pkt_dev->cur_queue_map; |
64053bee | 2724 | |
7ac5459e | 2725 | datalen = (odev->hard_header_len + 16) & ~0xf; |
e99b99b4 RO |
2726 | |
2727 | if (pkt_dev->flags & F_NODE) { | |
2728 | int node; | |
2729 | ||
2730 | if (pkt_dev->node >= 0) | |
2731 | node = pkt_dev->node; | |
2732 | else | |
2733 | node = numa_node_id(); | |
2734 | ||
2735 | skb = __alloc_skb(NET_SKB_PAD + pkt_dev->cur_pkt_size + 64 | |
2736 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT, 0, node); | |
2737 | if (likely(skb)) { | |
2738 | skb_reserve(skb, NET_SKB_PAD); | |
2739 | skb->dev = odev; | |
2740 | } | |
2741 | } | |
2742 | else | |
2743 | skb = __netdev_alloc_skb(odev, | |
2744 | pkt_dev->cur_pkt_size + 64 | |
2745 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
2746 | ||
1da177e4 LT |
2747 | if (!skb) { |
2748 | sprintf(pkt_dev->result, "No memory"); | |
2749 | return NULL; | |
2750 | } | |
a8d764b9 | 2751 | prefetchw(skb->data); |
1da177e4 | 2752 | |
7ac5459e | 2753 | skb_reserve(skb, datalen); |
1da177e4 LT |
2754 | |
2755 | /* Reserve for ethernet and IP header */ | |
2756 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2757 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2758 | if (pkt_dev->nr_labels) | |
2759 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2760 | |
2761 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2762 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2763 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2764 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2765 | pkt_dev->svlan_cfi, | |
2766 | pkt_dev->svlan_p); | |
34954ddc | 2767 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2768 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2769 | } |
2770 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2771 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2772 | pkt_dev->vlan_cfi, | |
2773 | pkt_dev->vlan_p); | |
34954ddc | 2774 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2775 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2776 | } |
2777 | ||
27a884dc | 2778 | skb->network_header = skb->tail; |
b0e380b1 | 2779 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2780 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2781 | skb_set_queue_mapping(skb, queue_map); |
9e50e3ac JF |
2782 | skb->priority = pkt_dev->skb_priority; |
2783 | ||
ddc7b8e3 ACM |
2784 | iph = ip_hdr(skb); |
2785 | udph = udp_hdr(skb); | |
1da177e4 | 2786 | |
1da177e4 | 2787 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2788 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2789 | |
ca6549af SW |
2790 | /* Eth + IPh + UDPh + mpls */ |
2791 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2792 | pkt_dev->pkt_overhead; |
222f1806 | 2793 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2794 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2795 | |
1da177e4 LT |
2796 | udph->source = htons(pkt_dev->cur_udp_src); |
2797 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2798 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2799 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2800 | |
2801 | iph->ihl = 5; | |
2802 | iph->version = 4; | |
2803 | iph->ttl = 32; | |
1ca7768c | 2804 | iph->tos = pkt_dev->tos; |
222f1806 | 2805 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2806 | iph->saddr = pkt_dev->cur_saddr; |
2807 | iph->daddr = pkt_dev->cur_daddr; | |
66ed1e5e ED |
2808 | iph->id = htons(pkt_dev->ip_id); |
2809 | pkt_dev->ip_id++; | |
1da177e4 LT |
2810 | iph->frag_off = 0; |
2811 | iplen = 20 + 8 + datalen; | |
2812 | iph->tot_len = htons(iplen); | |
2813 | iph->check = 0; | |
222f1806 | 2814 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2815 | skb->protocol = protocol; |
b0e380b1 | 2816 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2817 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2818 | skb->dev = odev; |
2819 | skb->pkt_type = PACKET_HOST; | |
26ad7879 | 2820 | pktgen_finalize_skb(pkt_dev, skb, datalen); |
1da177e4 | 2821 | |
a553e4a6 JHS |
2822 | #ifdef CONFIG_XFRM |
2823 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2824 | return NULL; | |
2825 | #endif | |
2826 | ||
1da177e4 LT |
2827 | return skb; |
2828 | } | |
2829 | ||
2830 | /* | |
4ec93edb | 2831 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2832 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2833 | * | |
4ec93edb | 2834 | * Slightly modified for kernel. |
1da177e4 LT |
2835 | * Should be candidate for net/ipv4/utils.c |
2836 | * --ro | |
2837 | */ | |
2838 | ||
222f1806 | 2839 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2840 | { |
2841 | unsigned int i; | |
222f1806 | 2842 | unsigned int len = 0; |
1da177e4 LT |
2843 | unsigned long u; |
2844 | char suffix[16]; | |
222f1806 LC |
2845 | unsigned int prefixlen = 0; |
2846 | unsigned int suffixlen = 0; | |
252e3346 | 2847 | __be32 tmp; |
cfcabdcc | 2848 | char *pos; |
1da177e4 | 2849 | |
222f1806 LC |
2850 | for (i = 0; i < 16; i++) |
2851 | ip[i] = 0; | |
1da177e4 LT |
2852 | |
2853 | for (;;) { | |
2854 | if (*s == ':') { | |
2855 | len++; | |
222f1806 LC |
2856 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2857 | s += 2; | |
1da177e4 LT |
2858 | len++; |
2859 | break; | |
2860 | } | |
2861 | s++; | |
2862 | } | |
1da177e4 | 2863 | |
cfcabdcc SH |
2864 | u = simple_strtoul(s, &pos, 16); |
2865 | i = pos - s; | |
222f1806 LC |
2866 | if (!i) |
2867 | return 0; | |
2868 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2869 | |
2870 | /* the last 4 bytes may be written as IPv4 address */ | |
2871 | ||
2872 | tmp = in_aton(s); | |
222f1806 LC |
2873 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2874 | return i + len; | |
1da177e4 LT |
2875 | } |
2876 | ip[prefixlen++] = (u >> 8); | |
2877 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2878 | s += i; |
2879 | len += i; | |
2880 | if (prefixlen == 16) | |
1da177e4 LT |
2881 | return len; |
2882 | } | |
2883 | ||
2884 | /* part 2, after "::" */ | |
2885 | for (;;) { | |
2886 | if (*s == ':') { | |
222f1806 | 2887 | if (suffixlen == 0) |
1da177e4 LT |
2888 | break; |
2889 | s++; | |
2890 | len++; | |
222f1806 | 2891 | } else if (suffixlen != 0) |
1da177e4 | 2892 | break; |
cfcabdcc SH |
2893 | |
2894 | u = simple_strtol(s, &pos, 16); | |
2895 | i = pos - s; | |
1da177e4 | 2896 | if (!i) { |
222f1806 LC |
2897 | if (*s) |
2898 | len--; | |
1da177e4 LT |
2899 | break; |
2900 | } | |
222f1806 | 2901 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2902 | tmp = in_aton(s); |
222f1806 LC |
2903 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2904 | sizeof(tmp)); | |
2905 | suffixlen += 4; | |
2906 | len += strlen(s); | |
1da177e4 LT |
2907 | break; |
2908 | } | |
2909 | suffix[suffixlen++] = (u >> 8); | |
2910 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2911 | s += i; |
2912 | len += i; | |
2913 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2914 | break; |
2915 | } | |
222f1806 LC |
2916 | for (i = 0; i < suffixlen; i++) |
2917 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2918 | return len; |
2919 | } | |
2920 | ||
222f1806 LC |
2921 | static char tohex(char hexdigit) |
2922 | { | |
2923 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2924 | } |
2925 | ||
222f1806 LC |
2926 | static int fmt_xlong(char *s, unsigned int i) |
2927 | { | |
2928 | char *bak = s; | |
2929 | *s = tohex((i >> 12) & 0xf); | |
2930 | if (s != bak || *s != '0') | |
2931 | ++s; | |
2932 | *s = tohex((i >> 8) & 0xf); | |
2933 | if (s != bak || *s != '0') | |
2934 | ++s; | |
2935 | *s = tohex((i >> 4) & 0xf); | |
2936 | if (s != bak || *s != '0') | |
2937 | ++s; | |
2938 | *s = tohex(i & 0xf); | |
2939 | return s - bak + 1; | |
1da177e4 LT |
2940 | } |
2941 | ||
222f1806 LC |
2942 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2943 | { | |
1da177e4 LT |
2944 | unsigned int len; |
2945 | unsigned int i; | |
2946 | unsigned int temp; | |
2947 | unsigned int compressing; | |
2948 | int j; | |
2949 | ||
222f1806 LC |
2950 | len = 0; |
2951 | compressing = 0; | |
2952 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2953 | |
2954 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2955 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2956 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2957 | temp = strlen(s); | |
2958 | return len + temp; | |
1da177e4 LT |
2959 | } |
2960 | #endif | |
222f1806 LC |
2961 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2962 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2963 | if (temp == 0) { |
2964 | if (!compressing) { | |
222f1806 LC |
2965 | compressing = 1; |
2966 | if (j == 0) { | |
2967 | *s++ = ':'; | |
2968 | ++len; | |
1da177e4 LT |
2969 | } |
2970 | } | |
2971 | } else { | |
2972 | if (compressing) { | |
222f1806 LC |
2973 | compressing = 0; |
2974 | *s++ = ':'; | |
2975 | ++len; | |
1da177e4 | 2976 | } |
222f1806 LC |
2977 | i = fmt_xlong(s, temp); |
2978 | len += i; | |
2979 | s += i; | |
2980 | if (j < 14) { | |
1da177e4 LT |
2981 | *s++ = ':'; |
2982 | ++len; | |
2983 | } | |
2984 | } | |
2985 | } | |
2986 | if (compressing) { | |
222f1806 LC |
2987 | *s++ = ':'; |
2988 | ++len; | |
1da177e4 | 2989 | } |
222f1806 | 2990 | *s = 0; |
1da177e4 LT |
2991 | return len; |
2992 | } | |
2993 | ||
222f1806 LC |
2994 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2995 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2996 | { |
2997 | struct sk_buff *skb = NULL; | |
2998 | __u8 *eth; | |
2999 | struct udphdr *udph; | |
3000 | int datalen; | |
3001 | struct ipv6hdr *iph; | |
d5f1ce9a | 3002 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 3003 | __be32 *mpls; |
34954ddc FF |
3004 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
3005 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
3006 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
3007 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 3008 | u16 queue_map; |
ca6549af SW |
3009 | |
3010 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 3011 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 3012 | |
34954ddc | 3013 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 3014 | protocol = htons(ETH_P_8021Q); |
34954ddc | 3015 | |
64053bee RO |
3016 | /* Update any of the values, used when we're incrementing various |
3017 | * fields. | |
3018 | */ | |
3019 | mod_cur_headers(pkt_dev); | |
eb589063 | 3020 | queue_map = pkt_dev->cur_queue_map; |
64053bee | 3021 | |
e470757d SH |
3022 | skb = __netdev_alloc_skb(odev, |
3023 | pkt_dev->cur_pkt_size + 64 | |
3024 | + 16 + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
3025 | if (!skb) { |
3026 | sprintf(pkt_dev->result, "No memory"); | |
3027 | return NULL; | |
3028 | } | |
a8d764b9 | 3029 | prefetchw(skb->data); |
1da177e4 LT |
3030 | |
3031 | skb_reserve(skb, 16); | |
3032 | ||
3033 | /* Reserve for ethernet and IP header */ | |
3034 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
3035 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
3036 | if (pkt_dev->nr_labels) | |
3037 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
3038 | |
3039 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 3040 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 3041 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
3042 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
3043 | pkt_dev->svlan_cfi, | |
3044 | pkt_dev->svlan_p); | |
34954ddc | 3045 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 3046 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
3047 | } |
3048 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
3049 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
3050 | pkt_dev->vlan_cfi, | |
3051 | pkt_dev->vlan_p); | |
34954ddc | 3052 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 3053 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
3054 | } |
3055 | ||
27a884dc | 3056 | skb->network_header = skb->tail; |
b0e380b1 | 3057 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 3058 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 3059 | skb_set_queue_mapping(skb, queue_map); |
9e50e3ac | 3060 | skb->priority = pkt_dev->skb_priority; |
ddc7b8e3 ACM |
3061 | iph = ipv6_hdr(skb); |
3062 | udph = udp_hdr(skb); | |
1da177e4 | 3063 | |
1da177e4 | 3064 | memcpy(eth, pkt_dev->hh, 12); |
63adc6fb | 3065 | *(__be16 *) ð[12] = protocol; |
64053bee | 3066 | |
ca6549af SW |
3067 | /* Eth + IPh + UDPh + mpls */ |
3068 | datalen = pkt_dev->cur_pkt_size - 14 - | |
3069 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 3070 | pkt_dev->pkt_overhead; |
1da177e4 | 3071 | |
222f1806 | 3072 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
3073 | datalen = sizeof(struct pktgen_hdr); |
3074 | if (net_ratelimit()) | |
f9467eae | 3075 | pr_info("increased datalen to %d\n", datalen); |
1da177e4 LT |
3076 | } |
3077 | ||
3078 | udph->source = htons(pkt_dev->cur_udp_src); | |
3079 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
3080 | udph->len = htons(datalen + sizeof(struct udphdr)); |
3081 | udph->check = 0; /* No checksum */ | |
1da177e4 | 3082 | |
d5f1ce9a | 3083 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 3084 | |
1ca7768c FF |
3085 | if (pkt_dev->traffic_class) { |
3086 | /* Version + traffic class + flow (0) */ | |
252e3346 | 3087 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
3088 | } |
3089 | ||
1da177e4 LT |
3090 | iph->hop_limit = 32; |
3091 | ||
3092 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
3093 | iph->nexthdr = IPPROTO_UDP; | |
3094 | ||
3095 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
3096 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
3097 | ||
b0e380b1 | 3098 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 3099 | pkt_dev->pkt_overhead); |
ca6549af | 3100 | skb->protocol = protocol; |
1da177e4 LT |
3101 | skb->dev = odev; |
3102 | skb->pkt_type = PACKET_HOST; | |
3103 | ||
26ad7879 | 3104 | pktgen_finalize_skb(pkt_dev, skb, datalen); |
222f1806 | 3105 | |
1da177e4 LT |
3106 | return skb; |
3107 | } | |
3108 | ||
475ac1e4 SH |
3109 | static struct sk_buff *fill_packet(struct net_device *odev, |
3110 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3111 | { |
222f1806 | 3112 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
3113 | return fill_packet_ipv6(odev, pkt_dev); |
3114 | else | |
3115 | return fill_packet_ipv4(odev, pkt_dev); | |
3116 | } | |
3117 | ||
222f1806 | 3118 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 3119 | { |
222f1806 LC |
3120 | pkt_dev->seq_num = 1; |
3121 | pkt_dev->idle_acc = 0; | |
1da177e4 | 3122 | pkt_dev->sofar = 0; |
222f1806 LC |
3123 | pkt_dev->tx_bytes = 0; |
3124 | pkt_dev->errors = 0; | |
1da177e4 LT |
3125 | } |
3126 | ||
3127 | /* Set up structure for sending pkts, clear counters */ | |
3128 | ||
3129 | static void pktgen_run(struct pktgen_thread *t) | |
3130 | { | |
c26a8016 | 3131 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
3132 | int started = 0; |
3133 | ||
f9467eae | 3134 | func_enter(); |
1da177e4 LT |
3135 | |
3136 | if_lock(t); | |
c26a8016 | 3137 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
3138 | |
3139 | /* | |
3140 | * setup odev and create initial packet. | |
3141 | */ | |
3142 | pktgen_setup_inject(pkt_dev); | |
3143 | ||
222f1806 | 3144 | if (pkt_dev->odev) { |
1da177e4 | 3145 | pktgen_clear_counters(pkt_dev); |
222f1806 | 3146 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 | 3147 | pkt_dev->skb = NULL; |
fd29cf72 SH |
3148 | pkt_dev->started_at = |
3149 | pkt_dev->next_tx = ktime_now(); | |
3150 | ||
16dab72f | 3151 | set_pkt_overhead(pkt_dev); |
222f1806 | 3152 | |
1da177e4 LT |
3153 | strcpy(pkt_dev->result, "Starting"); |
3154 | started++; | |
222f1806 | 3155 | } else |
1da177e4 LT |
3156 | strcpy(pkt_dev->result, "Error starting"); |
3157 | } | |
3158 | if_unlock(t); | |
222f1806 LC |
3159 | if (started) |
3160 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3161 | } |
3162 | ||
3163 | static void pktgen_stop_all_threads_ifs(void) | |
3164 | { | |
cdcdbe0b | 3165 | struct pktgen_thread *t; |
1da177e4 | 3166 | |
f9467eae | 3167 | func_enter(); |
1da177e4 | 3168 | |
6146e6a4 | 3169 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3170 | |
3171 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3172 | t->control |= T_STOP; |
cdcdbe0b | 3173 | |
6146e6a4 | 3174 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3175 | } |
3176 | ||
648fda74 | 3177 | static int thread_is_running(const struct pktgen_thread *t) |
1da177e4 | 3178 | { |
648fda74 | 3179 | const struct pktgen_dev *pkt_dev; |
1da177e4 | 3180 | |
c26a8016 | 3181 | list_for_each_entry(pkt_dev, &t->if_list, list) |
648fda74 SH |
3182 | if (pkt_dev->running) |
3183 | return 1; | |
3184 | return 0; | |
1da177e4 LT |
3185 | } |
3186 | ||
222f1806 | 3187 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3188 | { |
222f1806 | 3189 | if_lock(t); |
1da177e4 | 3190 | |
222f1806 | 3191 | while (thread_is_running(t)) { |
1da177e4 | 3192 | |
222f1806 | 3193 | if_unlock(t); |
1da177e4 | 3194 | |
222f1806 | 3195 | msleep_interruptible(100); |
1da177e4 | 3196 | |
222f1806 LC |
3197 | if (signal_pending(current)) |
3198 | goto signal; | |
3199 | if_lock(t); | |
3200 | } | |
3201 | if_unlock(t); | |
3202 | return 1; | |
3203 | signal: | |
3204 | return 0; | |
1da177e4 LT |
3205 | } |
3206 | ||
3207 | static int pktgen_wait_all_threads_run(void) | |
3208 | { | |
cdcdbe0b | 3209 | struct pktgen_thread *t; |
1da177e4 | 3210 | int sig = 1; |
222f1806 | 3211 | |
6146e6a4 | 3212 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3213 | |
3214 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3215 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3216 | if (sig == 0) |
3217 | break; | |
1da177e4 | 3218 | } |
cdcdbe0b LC |
3219 | |
3220 | if (sig == 0) | |
3221 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3222 | t->control |= (T_STOP); |
cdcdbe0b | 3223 | |
6146e6a4 | 3224 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3225 | return sig; |
3226 | } | |
3227 | ||
3228 | static void pktgen_run_all_threads(void) | |
3229 | { | |
cdcdbe0b | 3230 | struct pktgen_thread *t; |
1da177e4 | 3231 | |
f9467eae | 3232 | func_enter(); |
1da177e4 | 3233 | |
6146e6a4 | 3234 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3235 | |
cdcdbe0b | 3236 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3237 | t->control |= (T_RUN); |
cdcdbe0b | 3238 | |
6146e6a4 | 3239 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3240 | |
63adc6fb SH |
3241 | /* Propagate thread->control */ |
3242 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
222f1806 | 3243 | |
1da177e4 LT |
3244 | pktgen_wait_all_threads_run(); |
3245 | } | |
3246 | ||
eb37b41c JB |
3247 | static void pktgen_reset_all_threads(void) |
3248 | { | |
3249 | struct pktgen_thread *t; | |
3250 | ||
f9467eae | 3251 | func_enter(); |
eb37b41c JB |
3252 | |
3253 | mutex_lock(&pktgen_thread_lock); | |
3254 | ||
3255 | list_for_each_entry(t, &pktgen_threads, th_list) | |
3256 | t->control |= (T_REMDEVALL); | |
3257 | ||
3258 | mutex_unlock(&pktgen_thread_lock); | |
3259 | ||
63adc6fb SH |
3260 | /* Propagate thread->control */ |
3261 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
eb37b41c JB |
3262 | |
3263 | pktgen_wait_all_threads_run(); | |
3264 | } | |
3265 | ||
1da177e4 LT |
3266 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3267 | { | |
fd29cf72 | 3268 | __u64 bps, mbps, pps; |
222f1806 | 3269 | char *p = pkt_dev->result; |
fd29cf72 SH |
3270 | ktime_t elapsed = ktime_sub(pkt_dev->stopped_at, |
3271 | pkt_dev->started_at); | |
3272 | ktime_t idle = ns_to_ktime(pkt_dev->idle_acc); | |
3273 | ||
03a14ab1 | 3274 | p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n", |
fd29cf72 SH |
3275 | (unsigned long long)ktime_to_us(elapsed), |
3276 | (unsigned long long)ktime_to_us(ktime_sub(elapsed, idle)), | |
3277 | (unsigned long long)ktime_to_us(idle), | |
222f1806 LC |
3278 | (unsigned long long)pkt_dev->sofar, |
3279 | pkt_dev->cur_pkt_size, nr_frags); | |
3280 | ||
fd29cf72 SH |
3281 | pps = div64_u64(pkt_dev->sofar * NSEC_PER_SEC, |
3282 | ktime_to_ns(elapsed)); | |
222f1806 LC |
3283 | |
3284 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3285 | ||
3286 | mbps = bps; | |
3287 | do_div(mbps, 1000000); | |
3288 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3289 | (unsigned long long)pps, | |
3290 | (unsigned long long)mbps, | |
3291 | (unsigned long long)bps, | |
3292 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3293 | } |
1da177e4 LT |
3294 | |
3295 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
222f1806 | 3296 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3297 | { |
222f1806 | 3298 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3299 | |
222f1806 | 3300 | if (!pkt_dev->running) { |
f9467eae JP |
3301 | pr_warning("interface: %s is already stopped\n", |
3302 | pkt_dev->odevname); | |
222f1806 LC |
3303 | return -EINVAL; |
3304 | } | |
1da177e4 | 3305 | |
3bda06a3 SH |
3306 | kfree_skb(pkt_dev->skb); |
3307 | pkt_dev->skb = NULL; | |
fd29cf72 | 3308 | pkt_dev->stopped_at = ktime_now(); |
222f1806 | 3309 | pkt_dev->running = 0; |
1da177e4 | 3310 | |
95ed63f7 | 3311 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3312 | |
222f1806 | 3313 | return 0; |
1da177e4 LT |
3314 | } |
3315 | ||
222f1806 | 3316 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3317 | { |
c26a8016 | 3318 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3319 | |
1da177e4 LT |
3320 | if_lock(t); |
3321 | ||
c26a8016 LC |
3322 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3323 | if (!pkt_dev->running) | |
222f1806 LC |
3324 | continue; |
3325 | if (best == NULL) | |
c26a8016 | 3326 | best = pkt_dev; |
fd29cf72 | 3327 | else if (ktime_lt(pkt_dev->next_tx, best->next_tx)) |
c26a8016 | 3328 | best = pkt_dev; |
1da177e4 LT |
3329 | } |
3330 | if_unlock(t); | |
222f1806 | 3331 | return best; |
1da177e4 LT |
3332 | } |
3333 | ||
222f1806 LC |
3334 | static void pktgen_stop(struct pktgen_thread *t) |
3335 | { | |
c26a8016 | 3336 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3337 | |
f9467eae | 3338 | func_enter(); |
1da177e4 | 3339 | |
222f1806 | 3340 | if_lock(t); |
1da177e4 | 3341 | |
c26a8016 LC |
3342 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3343 | pktgen_stop_device(pkt_dev); | |
95ed63f7 | 3344 | } |
1da177e4 | 3345 | |
222f1806 | 3346 | if_unlock(t); |
1da177e4 LT |
3347 | } |
3348 | ||
95ed63f7 AK |
3349 | /* |
3350 | * one of our devices needs to be removed - find it | |
3351 | * and remove it | |
3352 | */ | |
3353 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3354 | { | |
c26a8016 LC |
3355 | struct list_head *q, *n; |
3356 | struct pktgen_dev *cur; | |
95ed63f7 | 3357 | |
f9467eae | 3358 | func_enter(); |
95ed63f7 AK |
3359 | |
3360 | if_lock(t); | |
3361 | ||
c26a8016 LC |
3362 | list_for_each_safe(q, n, &t->if_list) { |
3363 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3364 | |
222f1806 LC |
3365 | if (!cur->removal_mark) |
3366 | continue; | |
95ed63f7 | 3367 | |
86dc1ad2 | 3368 | kfree_skb(cur->skb); |
95ed63f7 AK |
3369 | cur->skb = NULL; |
3370 | ||
3371 | pktgen_remove_device(t, cur); | |
3372 | ||
3373 | break; | |
3374 | } | |
3375 | ||
3376 | if_unlock(t); | |
3377 | } | |
3378 | ||
222f1806 | 3379 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3380 | { |
c26a8016 LC |
3381 | struct list_head *q, *n; |
3382 | struct pktgen_dev *cur; | |
222f1806 | 3383 | |
f9467eae JP |
3384 | func_enter(); |
3385 | ||
222f1806 | 3386 | /* Remove all devices, free mem */ |
95ed63f7 | 3387 | |
222f1806 | 3388 | if_lock(t); |
1da177e4 | 3389 | |
c26a8016 LC |
3390 | list_for_each_safe(q, n, &t->if_list) { |
3391 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3392 | |
86dc1ad2 | 3393 | kfree_skb(cur->skb); |
95ed63f7 AK |
3394 | cur->skb = NULL; |
3395 | ||
1da177e4 LT |
3396 | pktgen_remove_device(t, cur); |
3397 | } | |
3398 | ||
222f1806 | 3399 | if_unlock(t); |
1da177e4 LT |
3400 | } |
3401 | ||
222f1806 | 3402 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3403 | { |
222f1806 | 3404 | /* Remove from the thread list */ |
1da177e4 | 3405 | |
ee74baa7 | 3406 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3407 | |
1da177e4 LT |
3408 | } |
3409 | ||
ef87979c | 3410 | static void pktgen_resched(struct pktgen_dev *pkt_dev) |
3791decb | 3411 | { |
fd29cf72 | 3412 | ktime_t idle_start = ktime_now(); |
ef87979c SH |
3413 | schedule(); |
3414 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start)); | |
3415 | } | |
3791decb | 3416 | |
ef87979c SH |
3417 | static void pktgen_wait_for_skb(struct pktgen_dev *pkt_dev) |
3418 | { | |
3419 | ktime_t idle_start = ktime_now(); | |
3791decb | 3420 | |
ef87979c SH |
3421 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { |
3422 | if (signal_pending(current)) | |
3423 | break; | |
3424 | ||
3425 | if (need_resched()) | |
3426 | pktgen_resched(pkt_dev); | |
3427 | else | |
3428 | cpu_relax(); | |
3429 | } | |
fd29cf72 | 3430 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start)); |
3791decb SH |
3431 | } |
3432 | ||
475ac1e4 | 3433 | static void pktgen_xmit(struct pktgen_dev *pkt_dev) |
1da177e4 | 3434 | { |
00829823 | 3435 | struct net_device *odev = pkt_dev->odev; |
6fef4c0c | 3436 | netdev_tx_t (*xmit)(struct sk_buff *, struct net_device *) |
00829823 | 3437 | = odev->netdev_ops->ndo_start_xmit; |
fd2ea0a7 | 3438 | struct netdev_queue *txq; |
fd2ea0a7 | 3439 | u16 queue_map; |
1da177e4 LT |
3440 | int ret; |
3441 | ||
ef87979c SH |
3442 | /* If device is offline, then don't send */ |
3443 | if (unlikely(!netif_running(odev) || !netif_carrier_ok(odev))) { | |
3444 | pktgen_stop_device(pkt_dev); | |
3445 | return; | |
fd2ea0a7 DM |
3446 | } |
3447 | ||
ef87979c SH |
3448 | /* This is max DELAY, this has special meaning of |
3449 | * "never transmit" | |
3450 | */ | |
3451 | if (unlikely(pkt_dev->delay == ULLONG_MAX)) { | |
3452 | pkt_dev->next_tx = ktime_add_ns(ktime_now(), ULONG_MAX); | |
3791decb | 3453 | return; |
1da177e4 | 3454 | } |
222f1806 | 3455 | |
ef87979c | 3456 | /* If no skb or clone count exhausted then get new one */ |
7d7bb1cf SH |
3457 | if (!pkt_dev->skb || (pkt_dev->last_ok && |
3458 | ++pkt_dev->clone_count >= pkt_dev->clone_skb)) { | |
3459 | /* build a new pkt */ | |
3460 | kfree_skb(pkt_dev->skb); | |
3461 | ||
3462 | pkt_dev->skb = fill_packet(odev, pkt_dev); | |
3463 | if (pkt_dev->skb == NULL) { | |
f9467eae | 3464 | pr_err("ERROR: couldn't allocate skb in fill_packet\n"); |
7d7bb1cf SH |
3465 | schedule(); |
3466 | pkt_dev->clone_count--; /* back out increment, OOM */ | |
3467 | return; | |
1da177e4 | 3468 | } |
baac8564 | 3469 | pkt_dev->last_pkt_size = pkt_dev->skb->len; |
7d7bb1cf SH |
3470 | pkt_dev->allocated_skbs++; |
3471 | pkt_dev->clone_count = 0; /* reset counter */ | |
1da177e4 | 3472 | } |
95ed63f7 | 3473 | |
ef87979c SH |
3474 | if (pkt_dev->delay && pkt_dev->last_ok) |
3475 | spin(pkt_dev, pkt_dev->next_tx); | |
3476 | ||
fd2ea0a7 DM |
3477 | queue_map = skb_get_queue_mapping(pkt_dev->skb); |
3478 | txq = netdev_get_tx_queue(odev, queue_map); | |
3479 | ||
3480 | __netif_tx_lock_bh(txq); | |
5b8db2f5 | 3481 | |
5a0d2268 | 3482 | if (unlikely(netif_tx_queue_frozen_or_stopped(txq))) { |
ef87979c | 3483 | ret = NETDEV_TX_BUSY; |
0835acfe ED |
3484 | pkt_dev->last_ok = 0; |
3485 | goto unlock; | |
3486 | } | |
3487 | atomic_inc(&(pkt_dev->skb->users)); | |
3488 | ret = (*xmit)(pkt_dev->skb, odev); | |
ef87979c SH |
3489 | |
3490 | switch (ret) { | |
3491 | case NETDEV_TX_OK: | |
3492 | txq_trans_update(txq); | |
3493 | pkt_dev->last_ok = 1; | |
3494 | pkt_dev->sofar++; | |
3495 | pkt_dev->seq_num++; | |
baac8564 | 3496 | pkt_dev->tx_bytes += pkt_dev->last_pkt_size; |
ef87979c | 3497 | break; |
f466dba1 JF |
3498 | case NET_XMIT_DROP: |
3499 | case NET_XMIT_CN: | |
3500 | case NET_XMIT_POLICED: | |
3501 | /* skb has been consumed */ | |
3502 | pkt_dev->errors++; | |
3503 | break; | |
ef87979c SH |
3504 | default: /* Drivers are not supposed to return other values! */ |
3505 | if (net_ratelimit()) | |
58231186 | 3506 | pr_info("%s xmit error: %d\n", pkt_dev->odevname, ret); |
ef87979c SH |
3507 | pkt_dev->errors++; |
3508 | /* fallthru */ | |
3509 | case NETDEV_TX_LOCKED: | |
3510 | case NETDEV_TX_BUSY: | |
3511 | /* Retry it next time */ | |
3512 | atomic_dec(&(pkt_dev->skb->users)); | |
3513 | pkt_dev->last_ok = 0; | |
222f1806 | 3514 | } |
0835acfe | 3515 | unlock: |
fd2ea0a7 | 3516 | __netif_tx_unlock_bh(txq); |
222f1806 | 3517 | |
1da177e4 LT |
3518 | /* If pkt_dev->count is zero, then run forever */ |
3519 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
ef87979c | 3520 | pktgen_wait_for_skb(pkt_dev); |
222f1806 | 3521 | |
1da177e4 LT |
3522 | /* Done with this */ |
3523 | pktgen_stop_device(pkt_dev); | |
222f1806 | 3524 | } |
222f1806 | 3525 | } |
1da177e4 | 3526 | |
4ec93edb | 3527 | /* |
1da177e4 LT |
3528 | * Main loop of the thread goes here |
3529 | */ | |
3530 | ||
ee74baa7 | 3531 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3532 | { |
3533 | DEFINE_WAIT(wait); | |
ee74baa7 | 3534 | struct pktgen_thread *t = arg; |
222f1806 | 3535 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3536 | int cpu = t->cpu; |
1da177e4 | 3537 | |
ee74baa7 | 3538 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3539 | |
3540 | init_waitqueue_head(&t->queue); | |
d3ede327 | 3541 | complete(&t->start_done); |
1da177e4 | 3542 | |
f9467eae | 3543 | pr_debug("starting pktgen/%d: pid=%d\n", cpu, task_pid_nr(current)); |
1da177e4 | 3544 | |
ee74baa7 | 3545 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3546 | |
83144186 RW |
3547 | set_freezable(); |
3548 | ||
ee74baa7 DM |
3549 | while (!kthread_should_stop()) { |
3550 | pkt_dev = next_to_run(t); | |
1da177e4 | 3551 | |
ef87979c | 3552 | if (unlikely(!pkt_dev && t->control == 0)) { |
551eaff1 ED |
3553 | if (pktgen_exiting) |
3554 | break; | |
ef87979c SH |
3555 | wait_event_interruptible_timeout(t->queue, |
3556 | t->control != 0, | |
3557 | HZ/10); | |
1b3f720b | 3558 | try_to_freeze(); |
ef87979c | 3559 | continue; |
ee74baa7 | 3560 | } |
1da177e4 | 3561 | |
ee74baa7 | 3562 | __set_current_state(TASK_RUNNING); |
222f1806 | 3563 | |
ef87979c | 3564 | if (likely(pkt_dev)) { |
1da177e4 LT |
3565 | pktgen_xmit(pkt_dev); |
3566 | ||
ef87979c SH |
3567 | if (need_resched()) |
3568 | pktgen_resched(pkt_dev); | |
3569 | else | |
3570 | cpu_relax(); | |
3571 | } | |
3572 | ||
222f1806 | 3573 | if (t->control & T_STOP) { |
1da177e4 LT |
3574 | pktgen_stop(t); |
3575 | t->control &= ~(T_STOP); | |
3576 | } | |
3577 | ||
222f1806 | 3578 | if (t->control & T_RUN) { |
1da177e4 LT |
3579 | pktgen_run(t); |
3580 | t->control &= ~(T_RUN); | |
3581 | } | |
3582 | ||
222f1806 | 3583 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3584 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3585 | t->control &= ~(T_REMDEVALL); |
3586 | } | |
3587 | ||
222f1806 | 3588 | if (t->control & T_REMDEV) { |
95ed63f7 | 3589 | pktgen_rem_one_if(t); |
1da177e4 LT |
3590 | t->control &= ~(T_REMDEV); |
3591 | } | |
3592 | ||
09fe3ef4 AM |
3593 | try_to_freeze(); |
3594 | ||
ee74baa7 | 3595 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3596 | } |
1da177e4 | 3597 | |
f9467eae | 3598 | pr_debug("%s stopping all device\n", t->tsk->comm); |
222f1806 | 3599 | pktgen_stop(t); |
1da177e4 | 3600 | |
f9467eae | 3601 | pr_debug("%s removing all device\n", t->tsk->comm); |
222f1806 | 3602 | pktgen_rem_all_ifs(t); |
1da177e4 | 3603 | |
f9467eae | 3604 | pr_debug("%s removing thread\n", t->tsk->comm); |
222f1806 | 3605 | pktgen_rem_thread(t); |
cdcdbe0b | 3606 | |
551eaff1 ED |
3607 | /* Wait for kthread_stop */ |
3608 | while (!kthread_should_stop()) { | |
3609 | set_current_state(TASK_INTERRUPTIBLE); | |
3610 | schedule(); | |
3611 | } | |
3612 | __set_current_state(TASK_RUNNING); | |
3613 | ||
ee74baa7 | 3614 | return 0; |
1da177e4 LT |
3615 | } |
3616 | ||
222f1806 | 3617 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3e984840 | 3618 | const char *ifname, bool exact) |
1da177e4 | 3619 | { |
c26a8016 | 3620 | struct pktgen_dev *p, *pkt_dev = NULL; |
3e984840 | 3621 | size_t len = strlen(ifname); |
222f1806 | 3622 | |
3e984840 | 3623 | if_lock(t); |
c26a8016 | 3624 | list_for_each_entry(p, &t->if_list, list) |
3e984840 ED |
3625 | if (strncmp(p->odevname, ifname, len) == 0) { |
3626 | if (p->odevname[len]) { | |
3627 | if (exact || p->odevname[len] != '@') | |
3628 | continue; | |
3629 | } | |
c26a8016 | 3630 | pkt_dev = p; |
222f1806 LC |
3631 | break; |
3632 | } | |
222f1806 LC |
3633 | |
3634 | if_unlock(t); | |
f9467eae | 3635 | pr_debug("find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3636 | return pkt_dev; |
1da177e4 LT |
3637 | } |
3638 | ||
4ec93edb YH |
3639 | /* |
3640 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3641 | */ |
3642 | ||
222f1806 LC |
3643 | static int add_dev_to_thread(struct pktgen_thread *t, |
3644 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3645 | { |
3646 | int rv = 0; | |
222f1806 LC |
3647 | |
3648 | if_lock(t); | |
3649 | ||
3650 | if (pkt_dev->pg_thread) { | |
f9467eae | 3651 | pr_err("ERROR: already assigned to a thread\n"); |
222f1806 LC |
3652 | rv = -EBUSY; |
3653 | goto out; | |
3654 | } | |
c26a8016 LC |
3655 | |
3656 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3657 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3658 | pkt_dev->running = 0; |
3659 | ||
222f1806 LC |
3660 | out: |
3661 | if_unlock(t); | |
3662 | return rv; | |
1da177e4 LT |
3663 | } |
3664 | ||
3665 | /* Called under thread lock */ | |
3666 | ||
222f1806 | 3667 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3668 | { |
222f1806 | 3669 | struct pktgen_dev *pkt_dev; |
39df232f | 3670 | int err; |
3291b9db | 3671 | int node = cpu_to_node(t->cpu); |
222f1806 | 3672 | |
1da177e4 LT |
3673 | /* We don't allow a device to be on several threads */ |
3674 | ||
d50a6b56 SH |
3675 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3676 | if (pkt_dev) { | |
f9467eae | 3677 | pr_err("ERROR: interface already used\n"); |
222f1806 LC |
3678 | return -EBUSY; |
3679 | } | |
d50a6b56 | 3680 | |
3291b9db | 3681 | pkt_dev = kzalloc_node(sizeof(struct pktgen_dev), GFP_KERNEL, node); |
d50a6b56 SH |
3682 | if (!pkt_dev) |
3683 | return -ENOMEM; | |
3684 | ||
593f63b0 | 3685 | strcpy(pkt_dev->odevname, ifname); |
3291b9db ED |
3686 | pkt_dev->flows = vmalloc_node(MAX_CFLOWS * sizeof(struct flow_state), |
3687 | node); | |
d50a6b56 SH |
3688 | if (pkt_dev->flows == NULL) { |
3689 | kfree(pkt_dev); | |
3690 | return -ENOMEM; | |
3691 | } | |
222f1806 | 3692 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3693 | |
95ed63f7 | 3694 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3695 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3696 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3697 | pkt_dev->nfrags = 0; | |
3698 | pkt_dev->clone_skb = pg_clone_skb_d; | |
fd29cf72 | 3699 | pkt_dev->delay = pg_delay_d; |
d50a6b56 SH |
3700 | pkt_dev->count = pg_count_d; |
3701 | pkt_dev->sofar = 0; | |
222f1806 | 3702 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3703 | pkt_dev->udp_src_max = 9; |
3704 | pkt_dev->udp_dst_min = 9; | |
3705 | pkt_dev->udp_dst_max = 9; | |
3706 | ||
34954ddc FF |
3707 | pkt_dev->vlan_p = 0; |
3708 | pkt_dev->vlan_cfi = 0; | |
3709 | pkt_dev->vlan_id = 0xffff; | |
3710 | pkt_dev->svlan_p = 0; | |
3711 | pkt_dev->svlan_cfi = 0; | |
3712 | pkt_dev->svlan_id = 0xffff; | |
e99b99b4 | 3713 | pkt_dev->node = -1; |
34954ddc | 3714 | |
39df232f SH |
3715 | err = pktgen_setup_dev(pkt_dev, ifname); |
3716 | if (err) | |
3717 | goto out1; | |
d50a6b56 | 3718 | |
5efdccbc DL |
3719 | pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir, |
3720 | &pktgen_if_fops, pkt_dev); | |
39df232f | 3721 | if (!pkt_dev->entry) { |
f9467eae | 3722 | pr_err("cannot create %s/%s procfs entry\n", |
d50a6b56 | 3723 | PG_PROC_DIR, ifname); |
39df232f SH |
3724 | err = -EINVAL; |
3725 | goto out2; | |
d50a6b56 | 3726 | } |
a553e4a6 JHS |
3727 | #ifdef CONFIG_XFRM |
3728 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3729 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3730 | #endif | |
d50a6b56 SH |
3731 | |
3732 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3733 | out2: |
3734 | dev_put(pkt_dev->odev); | |
3735 | out1: | |
a553e4a6 JHS |
3736 | #ifdef CONFIG_XFRM |
3737 | free_SAs(pkt_dev); | |
3738 | #endif | |
1d0ebfe7 | 3739 | vfree(pkt_dev->flows); |
39df232f SH |
3740 | kfree(pkt_dev); |
3741 | return err; | |
1da177e4 LT |
3742 | } |
3743 | ||
ee74baa7 | 3744 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3745 | { |
cdcdbe0b | 3746 | struct pktgen_thread *t; |
d50a6b56 | 3747 | struct proc_dir_entry *pe; |
ee74baa7 | 3748 | struct task_struct *p; |
222f1806 | 3749 | |
3291b9db ED |
3750 | t = kzalloc_node(sizeof(struct pktgen_thread), GFP_KERNEL, |
3751 | cpu_to_node(cpu)); | |
222f1806 | 3752 | if (!t) { |
f9467eae | 3753 | pr_err("ERROR: out of memory, can't create new thread\n"); |
222f1806 LC |
3754 | return -ENOMEM; |
3755 | } | |
3756 | ||
222f1806 | 3757 | spin_lock_init(&t->if_lock); |
1da177e4 | 3758 | t->cpu = cpu; |
222f1806 | 3759 | |
ee74baa7 DM |
3760 | INIT_LIST_HEAD(&t->if_list); |
3761 | ||
3762 | list_add_tail(&t->th_list, &pktgen_threads); | |
d3ede327 | 3763 | init_completion(&t->start_done); |
ee74baa7 DM |
3764 | |
3765 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3766 | if (IS_ERR(p)) { | |
f9467eae | 3767 | pr_err("kernel_thread() failed for cpu %d\n", t->cpu); |
ee74baa7 DM |
3768 | list_del(&t->th_list); |
3769 | kfree(t); | |
3770 | return PTR_ERR(p); | |
3771 | } | |
3772 | kthread_bind(p, cpu); | |
3773 | t->tsk = p; | |
3774 | ||
5efdccbc DL |
3775 | pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir, |
3776 | &pktgen_thread_fops, t); | |
222f1806 | 3777 | if (!pe) { |
f9467eae | 3778 | pr_err("cannot create %s/%s procfs entry\n", |
ee74baa7 DM |
3779 | PG_PROC_DIR, t->tsk->comm); |
3780 | kthread_stop(p); | |
3781 | list_del(&t->th_list); | |
222f1806 LC |
3782 | kfree(t); |
3783 | return -EINVAL; | |
3784 | } | |
d50a6b56 | 3785 | |
ee74baa7 | 3786 | wake_up_process(p); |
d3ede327 | 3787 | wait_for_completion(&t->start_done); |
1da177e4 LT |
3788 | |
3789 | return 0; | |
3790 | } | |
3791 | ||
4ec93edb YH |
3792 | /* |
3793 | * Removes a device from the thread if_list. | |
1da177e4 | 3794 | */ |
222f1806 LC |
3795 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3796 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3797 | { |
c26a8016 LC |
3798 | struct list_head *q, *n; |
3799 | struct pktgen_dev *p; | |
1da177e4 | 3800 | |
c26a8016 LC |
3801 | list_for_each_safe(q, n, &t->if_list) { |
3802 | p = list_entry(q, struct pktgen_dev, list); | |
3803 | if (p == pkt_dev) | |
3804 | list_del(&p->list); | |
1da177e4 LT |
3805 | } |
3806 | } | |
3807 | ||
222f1806 LC |
3808 | static int pktgen_remove_device(struct pktgen_thread *t, |
3809 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3810 | { |
3811 | ||
f9467eae | 3812 | pr_debug("remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3813 | |
222f1806 | 3814 | if (pkt_dev->running) { |
f9467eae | 3815 | pr_warning("WARNING: trying to remove a running interface, stopping it now\n"); |
222f1806 LC |
3816 | pktgen_stop_device(pkt_dev); |
3817 | } | |
3818 | ||
3819 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3820 | |
3821 | if (pkt_dev->odev) { | |
3822 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3823 | pkt_dev->odev = NULL; |
3824 | } | |
3825 | ||
1da177e4 LT |
3826 | /* And update the thread if_list */ |
3827 | ||
3828 | _rem_dev_from_if_list(t, pkt_dev); | |
3829 | ||
39df232f SH |
3830 | if (pkt_dev->entry) |
3831 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3832 | |
a553e4a6 JHS |
3833 | #ifdef CONFIG_XFRM |
3834 | free_SAs(pkt_dev); | |
3835 | #endif | |
1d0ebfe7 | 3836 | vfree(pkt_dev->flows); |
26ad7879 ED |
3837 | if (pkt_dev->page) |
3838 | put_page(pkt_dev->page); | |
1da177e4 | 3839 | kfree(pkt_dev); |
222f1806 | 3840 | return 0; |
1da177e4 LT |
3841 | } |
3842 | ||
222f1806 | 3843 | static int __init pg_init(void) |
1da177e4 LT |
3844 | { |
3845 | int cpu; | |
d50a6b56 | 3846 | struct proc_dir_entry *pe; |
1da177e4 | 3847 | |
f9467eae | 3848 | pr_info("%s", version); |
1da177e4 | 3849 | |
457c4cbc | 3850 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3851 | if (!pg_proc_dir) |
3852 | return -ENODEV; | |
1da177e4 | 3853 | |
25296d59 | 3854 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3855 | if (pe == NULL) { |
f9467eae | 3856 | pr_err("ERROR: cannot create %s procfs entry\n", PGCTRL); |
457c4cbc | 3857 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3858 | return -EINVAL; |
3859 | } | |
1da177e4 | 3860 | |
1da177e4 LT |
3861 | /* Register us to receive netdevice events */ |
3862 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3863 | |
670c02c2 | 3864 | for_each_online_cpu(cpu) { |
8024bb24 | 3865 | int err; |
1da177e4 | 3866 | |
ee74baa7 | 3867 | err = pktgen_create_thread(cpu); |
8024bb24 | 3868 | if (err) |
f9467eae JP |
3869 | pr_warning("WARNING: Cannot create thread for cpu %d (%d)\n", |
3870 | cpu, err); | |
222f1806 | 3871 | } |
8024bb24 LC |
3872 | |
3873 | if (list_empty(&pktgen_threads)) { | |
f9467eae | 3874 | pr_err("ERROR: Initialization failed for all threads\n"); |
8024bb24 LC |
3875 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3876 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3877 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3878 | return -ENODEV; |
3879 | } | |
3880 | ||
222f1806 | 3881 | return 0; |
1da177e4 LT |
3882 | } |
3883 | ||
3884 | static void __exit pg_cleanup(void) | |
3885 | { | |
cdcdbe0b LC |
3886 | struct pktgen_thread *t; |
3887 | struct list_head *q, *n; | |
1da177e4 | 3888 | |
222f1806 | 3889 | /* Stop all interfaces & threads */ |
551eaff1 | 3890 | pktgen_exiting = true; |
1da177e4 | 3891 | |
cdcdbe0b LC |
3892 | list_for_each_safe(q, n, &pktgen_threads) { |
3893 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3894 | kthread_stop(t->tsk); |
3895 | kfree(t); | |
222f1806 | 3896 | } |
1da177e4 | 3897 | |
222f1806 | 3898 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3899 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3900 | ||
222f1806 | 3901 | /* Clean up proc file system */ |
d50a6b56 | 3902 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3903 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3904 | } |
3905 | ||
1da177e4 LT |
3906 | module_init(pg_init); |
3907 | module_exit(pg_cleanup); | |
3908 | ||
c3d2f52d | 3909 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se>"); |
1da177e4 LT |
3910 | MODULE_DESCRIPTION("Packet Generator tool"); |
3911 | MODULE_LICENSE("GPL"); | |
c3d2f52d | 3912 | MODULE_VERSION(VERSION); |
1da177e4 | 3913 | module_param(pg_count_d, int, 0); |
c3d2f52d | 3914 | MODULE_PARM_DESC(pg_count_d, "Default number of packets to inject"); |
1da177e4 | 3915 | module_param(pg_delay_d, int, 0); |
c3d2f52d | 3916 | MODULE_PARM_DESC(pg_delay_d, "Default delay between packets (nanoseconds)"); |
1da177e4 | 3917 | module_param(pg_clone_skb_d, int, 0); |
c3d2f52d | 3918 | MODULE_PARM_DESC(pg_clone_skb_d, "Default number of copies of the same packet"); |
1da177e4 | 3919 | module_param(debug, int, 0); |
c3d2f52d | 3920 | MODULE_PARM_DESC(debug, "Enable debugging of pktgen module"); |