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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> |
268bb0ce | 159 | #include <linux/prefetch.h> |
457c4cbc | 160 | #include <net/net_namespace.h> |
1da177e4 LT |
161 | #include <net/checksum.h> |
162 | #include <net/ipv6.h> | |
163 | #include <net/addrconf.h> | |
a553e4a6 JHS |
164 | #ifdef CONFIG_XFRM |
165 | #include <net/xfrm.h> | |
166 | #endif | |
1da177e4 LT |
167 | #include <asm/byteorder.h> |
168 | #include <linux/rcupdate.h> | |
1977f032 | 169 | #include <linux/bitops.h> |
63adc6fb SH |
170 | #include <linux/io.h> |
171 | #include <linux/timex.h> | |
172 | #include <linux/uaccess.h> | |
1da177e4 | 173 | #include <asm/dma.h> |
222f1806 | 174 | #include <asm/div64.h> /* do_div */ |
1da177e4 | 175 | |
43d28b65 | 176 | #define VERSION "2.74" |
1da177e4 | 177 | #define IP_NAME_SZ 32 |
ca6549af | 178 | #define MAX_MPLS_LABELS 16 /* This is the max label stack depth */ |
d5f1ce9a | 179 | #define MPLS_STACK_BOTTOM htonl(0x00000100) |
1da177e4 | 180 | |
f9467eae JP |
181 | #define func_enter() pr_debug("entering %s\n", __func__); |
182 | ||
1da177e4 | 183 | /* Device flag bits */ |
222f1806 LC |
184 | #define F_IPSRC_RND (1<<0) /* IP-Src Random */ |
185 | #define F_IPDST_RND (1<<1) /* IP-Dst Random */ | |
186 | #define F_UDPSRC_RND (1<<2) /* UDP-Src Random */ | |
187 | #define F_UDPDST_RND (1<<3) /* UDP-Dst Random */ | |
188 | #define F_MACSRC_RND (1<<4) /* MAC-Src Random */ | |
189 | #define F_MACDST_RND (1<<5) /* MAC-Dst Random */ | |
190 | #define F_TXSIZE_RND (1<<6) /* Transmit size is random */ | |
191 | #define F_IPV6 (1<<7) /* Interface in IPV6 Mode */ | |
ca6549af | 192 | #define F_MPLS_RND (1<<8) /* Random MPLS labels */ |
34954ddc FF |
193 | #define F_VID_RND (1<<9) /* Random VLAN ID */ |
194 | #define F_SVID_RND (1<<10) /* Random SVLAN ID */ | |
007a531b | 195 | #define F_FLOW_SEQ (1<<11) /* Sequential flows */ |
a553e4a6 | 196 | #define F_IPSEC_ON (1<<12) /* ipsec on for flows */ |
45b270f8 | 197 | #define F_QUEUE_MAP_RND (1<<13) /* queue map Random */ |
e6fce5b9 | 198 | #define F_QUEUE_MAP_CPU (1<<14) /* queue map mirrors smp_processor_id() */ |
e99b99b4 | 199 | #define F_NODE (1<<15) /* Node memory alloc*/ |
1da177e4 LT |
200 | |
201 | /* Thread control flag bits */ | |
6b80d6a6 SH |
202 | #define T_STOP (1<<0) /* Stop run */ |
203 | #define T_RUN (1<<1) /* Start run */ | |
204 | #define T_REMDEVALL (1<<2) /* Remove all devs */ | |
205 | #define T_REMDEV (1<<3) /* Remove one dev */ | |
1da177e4 | 206 | |
1da177e4 LT |
207 | /* If lock -- can be removed after some work */ |
208 | #define if_lock(t) spin_lock(&(t->if_lock)); | |
209 | #define if_unlock(t) spin_unlock(&(t->if_lock)); | |
210 | ||
211 | /* Used to help with determining the pkts on receive */ | |
212 | #define PKTGEN_MAGIC 0xbe9be955 | |
d50a6b56 SH |
213 | #define PG_PROC_DIR "pktgen" |
214 | #define PGCTRL "pgctrl" | |
63adc6fb | 215 | static struct proc_dir_entry *pg_proc_dir; |
1da177e4 LT |
216 | |
217 | #define MAX_CFLOWS 65536 | |
218 | ||
34954ddc FF |
219 | #define VLAN_TAG_SIZE(x) ((x)->vlan_id == 0xffff ? 0 : 4) |
220 | #define SVLAN_TAG_SIZE(x) ((x)->svlan_id == 0xffff ? 0 : 4) | |
221 | ||
222f1806 | 222 | struct flow_state { |
252e3346 | 223 | __be32 cur_daddr; |
222f1806 | 224 | int count; |
a553e4a6 JHS |
225 | #ifdef CONFIG_XFRM |
226 | struct xfrm_state *x; | |
227 | #endif | |
007a531b | 228 | __u32 flags; |
1da177e4 LT |
229 | }; |
230 | ||
007a531b JHS |
231 | /* flow flag bits */ |
232 | #define F_INIT (1<<0) /* flow has been initialized */ | |
233 | ||
1da177e4 | 234 | struct pktgen_dev { |
1da177e4 LT |
235 | /* |
236 | * Try to keep frequent/infrequent used vars. separated. | |
237 | */ | |
39df232f SH |
238 | struct proc_dir_entry *entry; /* proc file */ |
239 | struct pktgen_thread *pg_thread;/* the owner */ | |
63adc6fb | 240 | struct list_head list; /* chaining in the thread's run-queue */ |
1da177e4 | 241 | |
63adc6fb | 242 | int running; /* if false, the test will stop */ |
1da177e4 | 243 | |
222f1806 LC |
244 | /* If min != max, then we will either do a linear iteration, or |
245 | * we will do a random selection from within the range. | |
246 | */ | |
247 | __u32 flags; | |
95ed63f7 AK |
248 | int removal_mark; /* non-zero => the device is marked for |
249 | * removal by worker thread */ | |
1da177e4 | 250 | |
68bf9f0b AW |
251 | int min_pkt_size; |
252 | int max_pkt_size; | |
16dab72f | 253 | int pkt_overhead; /* overhead for MPLS, VLANs, IPSEC etc */ |
222f1806 | 254 | int nfrags; |
26ad7879 | 255 | struct page *page; |
fd29cf72 SH |
256 | u64 delay; /* nano-seconds */ |
257 | ||
222f1806 LC |
258 | __u64 count; /* Default No packets to send */ |
259 | __u64 sofar; /* How many pkts we've sent so far */ | |
260 | __u64 tx_bytes; /* How many bytes we've transmitted */ | |
f466dba1 | 261 | __u64 errors; /* Errors when trying to transmit, */ |
222f1806 LC |
262 | |
263 | /* runtime counters relating to clone_skb */ | |
222f1806 LC |
264 | |
265 | __u64 allocated_skbs; | |
266 | __u32 clone_count; | |
267 | int last_ok; /* Was last skb sent? | |
63adc6fb SH |
268 | * Or a failed transmit of some sort? |
269 | * This will keep sequence numbers in order | |
222f1806 | 270 | */ |
fd29cf72 SH |
271 | ktime_t next_tx; |
272 | ktime_t started_at; | |
273 | ktime_t stopped_at; | |
274 | u64 idle_acc; /* nano-seconds */ | |
275 | ||
222f1806 LC |
276 | __u32 seq_num; |
277 | ||
63adc6fb SH |
278 | int clone_skb; /* |
279 | * Use multiple SKBs during packet gen. | |
280 | * If this number is greater than 1, then | |
281 | * that many copies of the same packet will be | |
282 | * sent before a new packet is allocated. | |
283 | * If you want to send 1024 identical packets | |
284 | * before creating a new packet, | |
285 | * set clone_skb to 1024. | |
222f1806 LC |
286 | */ |
287 | ||
288 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
289 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
290 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
291 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
292 | ||
293 | struct in6_addr in6_saddr; | |
294 | struct in6_addr in6_daddr; | |
295 | struct in6_addr cur_in6_daddr; | |
296 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 297 | /* For ranges */ |
222f1806 LC |
298 | struct in6_addr min_in6_daddr; |
299 | struct in6_addr max_in6_daddr; | |
300 | struct in6_addr min_in6_saddr; | |
301 | struct in6_addr max_in6_saddr; | |
302 | ||
303 | /* If we're doing ranges, random or incremental, then this | |
304 | * defines the min/max for those ranges. | |
305 | */ | |
252e3346 AV |
306 | __be32 saddr_min; /* inclusive, source IP address */ |
307 | __be32 saddr_max; /* exclusive, source IP address */ | |
308 | __be32 daddr_min; /* inclusive, dest IP address */ | |
309 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
310 | |
311 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
312 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
313 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
314 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
315 | ||
1ca7768c | 316 | /* DSCP + ECN */ |
63adc6fb SH |
317 | __u8 tos; /* six MSB of (former) IPv4 TOS |
318 | are for dscp codepoint */ | |
319 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 | |
320 | (see RFC 3260, sec. 4) */ | |
1ca7768c | 321 | |
ca6549af | 322 | /* MPLS */ |
95c96174 | 323 | unsigned int nr_labels; /* Depth of stack, 0 = no MPLS */ |
ca6549af SW |
324 | __be32 labels[MAX_MPLS_LABELS]; |
325 | ||
34954ddc FF |
326 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
327 | __u8 vlan_p; | |
328 | __u8 vlan_cfi; | |
329 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
330 | ||
331 | __u8 svlan_p; | |
332 | __u8 svlan_cfi; | |
333 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
334 | ||
222f1806 LC |
335 | __u32 src_mac_count; /* How many MACs to iterate through */ |
336 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
337 | ||
338 | unsigned char dst_mac[ETH_ALEN]; | |
339 | unsigned char src_mac[ETH_ALEN]; | |
340 | ||
341 | __u32 cur_dst_mac_offset; | |
342 | __u32 cur_src_mac_offset; | |
252e3346 AV |
343 | __be32 cur_saddr; |
344 | __be32 cur_daddr; | |
66ed1e5e | 345 | __u16 ip_id; |
222f1806 LC |
346 | __u16 cur_udp_dst; |
347 | __u16 cur_udp_src; | |
45b270f8 | 348 | __u16 cur_queue_map; |
222f1806 | 349 | __u32 cur_pkt_size; |
baac8564 | 350 | __u32 last_pkt_size; |
222f1806 LC |
351 | |
352 | __u8 hh[14]; | |
353 | /* = { | |
354 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
355 | ||
356 | We fill in SRC address later | |
357 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
358 | 0x08, 0x00 | |
359 | }; | |
360 | */ | |
361 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
362 | ||
63adc6fb | 363 | struct sk_buff *skb; /* skb we are to transmit next, used for when we |
222f1806 LC |
364 | * are transmitting the same one multiple times |
365 | */ | |
63adc6fb SH |
366 | struct net_device *odev; /* The out-going device. |
367 | * Note that the device should have it's | |
368 | * pg_info pointer pointing back to this | |
369 | * device. | |
370 | * Set when the user specifies the out-going | |
371 | * device name (not when the inject is | |
372 | * started as it used to do.) | |
373 | */ | |
593f63b0 | 374 | char odevname[32]; |
1da177e4 | 375 | struct flow_state *flows; |
95c96174 ED |
376 | unsigned int cflows; /* Concurrent flows (config) */ |
377 | unsigned int lflow; /* Flow length (config) */ | |
378 | unsigned int nflows; /* accumulated flows (stats) */ | |
379 | unsigned int curfl; /* current sequenced flow (state)*/ | |
45b270f8 RO |
380 | |
381 | u16 queue_map_min; | |
382 | u16 queue_map_max; | |
9e50e3ac | 383 | __u32 skb_priority; /* skb priority field */ |
e99b99b4 | 384 | int node; /* Memory node */ |
45b270f8 | 385 | |
a553e4a6 JHS |
386 | #ifdef CONFIG_XFRM |
387 | __u8 ipsmode; /* IPSEC mode (config) */ | |
388 | __u8 ipsproto; /* IPSEC type (config) */ | |
389 | #endif | |
39df232f | 390 | char result[512]; |
1da177e4 LT |
391 | }; |
392 | ||
393 | struct pktgen_hdr { | |
252e3346 AV |
394 | __be32 pgh_magic; |
395 | __be32 seq_num; | |
396 | __be32 tv_sec; | |
397 | __be32 tv_usec; | |
1da177e4 LT |
398 | }; |
399 | ||
551eaff1 ED |
400 | static bool pktgen_exiting __read_mostly; |
401 | ||
1da177e4 | 402 | struct pktgen_thread { |
63adc6fb | 403 | spinlock_t if_lock; /* for list of devices */ |
c26a8016 | 404 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 405 | struct list_head th_list; |
ee74baa7 | 406 | struct task_struct *tsk; |
222f1806 | 407 | char result[512]; |
222f1806 | 408 | |
63adc6fb SH |
409 | /* Field for thread to receive "posted" events terminate, |
410 | stop ifs etc. */ | |
222f1806 LC |
411 | |
412 | u32 control; | |
1da177e4 LT |
413 | int cpu; |
414 | ||
222f1806 | 415 | wait_queue_head_t queue; |
d3ede327 | 416 | struct completion start_done; |
1da177e4 LT |
417 | }; |
418 | ||
419 | #define REMOVE 1 | |
420 | #define FIND 0 | |
421 | ||
c3d2f52d | 422 | static const char version[] = |
f9467eae JP |
423 | "Packet Generator for packet performance testing. " |
424 | "Version: " VERSION "\n"; | |
1da177e4 | 425 | |
222f1806 LC |
426 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
427 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
428 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
3e984840 | 429 | const char *ifname, bool exact); |
1da177e4 LT |
430 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
431 | static void pktgen_run_all_threads(void); | |
eb37b41c | 432 | static void pktgen_reset_all_threads(void); |
1da177e4 | 433 | static void pktgen_stop_all_threads_ifs(void); |
3bda06a3 | 434 | |
222f1806 | 435 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 436 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 437 | |
1da177e4 | 438 | /* Module parameters, defaults. */ |
65c5b786 SH |
439 | static int pg_count_d __read_mostly = 1000; |
440 | static int pg_delay_d __read_mostly; | |
441 | static int pg_clone_skb_d __read_mostly; | |
442 | static int debug __read_mostly; | |
1da177e4 | 443 | |
222fa076 | 444 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 445 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 446 | |
1da177e4 LT |
447 | static struct notifier_block pktgen_notifier_block = { |
448 | .notifier_call = pktgen_device_event, | |
449 | }; | |
450 | ||
1da177e4 | 451 | /* |
4ec93edb | 452 | * /proc handling functions |
1da177e4 LT |
453 | * |
454 | */ | |
455 | ||
d50a6b56 | 456 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 457 | { |
c3d2f52d | 458 | seq_puts(seq, version); |
d50a6b56 | 459 | return 0; |
1da177e4 LT |
460 | } |
461 | ||
63adc6fb SH |
462 | static ssize_t pgctrl_write(struct file *file, const char __user *buf, |
463 | size_t count, loff_t *ppos) | |
1da177e4 | 464 | { |
1da177e4 | 465 | int err = 0; |
d50a6b56 | 466 | char data[128]; |
1da177e4 | 467 | |
222f1806 LC |
468 | if (!capable(CAP_NET_ADMIN)) { |
469 | err = -EPERM; | |
1da177e4 | 470 | goto out; |
222f1806 | 471 | } |
1da177e4 | 472 | |
d50a6b56 SH |
473 | if (count > sizeof(data)) |
474 | count = sizeof(data); | |
1da177e4 | 475 | |
1da177e4 | 476 | if (copy_from_user(data, buf, count)) { |
b4099fab | 477 | err = -EFAULT; |
d50a6b56 | 478 | goto out; |
222f1806 LC |
479 | } |
480 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 481 | |
222f1806 | 482 | if (!strcmp(data, "stop")) |
1da177e4 LT |
483 | pktgen_stop_all_threads_ifs(); |
484 | ||
222f1806 | 485 | else if (!strcmp(data, "start")) |
1da177e4 LT |
486 | pktgen_run_all_threads(); |
487 | ||
eb37b41c JB |
488 | else if (!strcmp(data, "reset")) |
489 | pktgen_reset_all_threads(); | |
490 | ||
222f1806 | 491 | else |
f9467eae | 492 | pr_warning("Unknown command: %s\n", data); |
1da177e4 LT |
493 | |
494 | err = count; | |
495 | ||
222f1806 LC |
496 | out: |
497 | return err; | |
1da177e4 LT |
498 | } |
499 | ||
d50a6b56 SH |
500 | static int pgctrl_open(struct inode *inode, struct file *file) |
501 | { | |
502 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
503 | } | |
504 | ||
9a32144e | 505 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
506 | .owner = THIS_MODULE, |
507 | .open = pgctrl_open, | |
508 | .read = seq_read, | |
509 | .llseek = seq_lseek, | |
510 | .write = pgctrl_write, | |
511 | .release = single_release, | |
d50a6b56 SH |
512 | }; |
513 | ||
514 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 515 | { |
648fda74 | 516 | const struct pktgen_dev *pkt_dev = seq->private; |
fd29cf72 SH |
517 | ktime_t stopped; |
518 | u64 idle; | |
222f1806 LC |
519 | |
520 | seq_printf(seq, | |
521 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
522 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
523 | pkt_dev->max_pkt_size); | |
524 | ||
525 | seq_printf(seq, | |
fd29cf72 SH |
526 | " frags: %d delay: %llu clone_skb: %d ifname: %s\n", |
527 | pkt_dev->nfrags, (unsigned long long) pkt_dev->delay, | |
593f63b0 | 528 | pkt_dev->clone_skb, pkt_dev->odevname); |
222f1806 LC |
529 | |
530 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
531 | pkt_dev->lflow); | |
532 | ||
45b270f8 RO |
533 | seq_printf(seq, |
534 | " queue_map_min: %u queue_map_max: %u\n", | |
535 | pkt_dev->queue_map_min, | |
536 | pkt_dev->queue_map_max); | |
537 | ||
9e50e3ac JF |
538 | if (pkt_dev->skb_priority) |
539 | seq_printf(seq, " skb_priority: %u\n", | |
540 | pkt_dev->skb_priority); | |
541 | ||
222f1806 | 542 | if (pkt_dev->flags & F_IPV6) { |
222f1806 | 543 | seq_printf(seq, |
47a0200d AD |
544 | " saddr: %pI6c min_saddr: %pI6c max_saddr: %pI6c\n" |
545 | " daddr: %pI6c min_daddr: %pI6c max_daddr: %pI6c\n", | |
546 | &pkt_dev->in6_saddr, | |
547 | &pkt_dev->min_in6_saddr, &pkt_dev->max_in6_saddr, | |
548 | &pkt_dev->in6_daddr, | |
549 | &pkt_dev->min_in6_daddr, &pkt_dev->max_in6_daddr); | |
63adc6fb SH |
550 | } else { |
551 | seq_printf(seq, | |
552 | " dst_min: %s dst_max: %s\n", | |
553 | pkt_dev->dst_min, pkt_dev->dst_max); | |
222f1806 | 554 | seq_printf(seq, |
63adc6fb SH |
555 | " src_min: %s src_max: %s\n", |
556 | pkt_dev->src_min, pkt_dev->src_max); | |
557 | } | |
1da177e4 | 558 | |
222f1806 | 559 | seq_puts(seq, " src_mac: "); |
1da177e4 | 560 | |
e174961c JB |
561 | seq_printf(seq, "%pM ", |
562 | is_zero_ether_addr(pkt_dev->src_mac) ? | |
563 | pkt_dev->odev->dev_addr : pkt_dev->src_mac); | |
222f1806 LC |
564 | |
565 | seq_printf(seq, "dst_mac: "); | |
e174961c | 566 | seq_printf(seq, "%pM\n", pkt_dev->dst_mac); |
222f1806 LC |
567 | |
568 | seq_printf(seq, | |
63adc6fb SH |
569 | " udp_src_min: %d udp_src_max: %d" |
570 | " udp_dst_min: %d udp_dst_max: %d\n", | |
222f1806 LC |
571 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, |
572 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
573 | ||
574 | seq_printf(seq, | |
ca6549af | 575 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 576 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 577 | |
ca6549af | 578 | if (pkt_dev->nr_labels) { |
95c96174 | 579 | unsigned int i; |
ca6549af | 580 | seq_printf(seq, " mpls: "); |
e71a4783 | 581 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
582 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
583 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
584 | } | |
585 | ||
63adc6fb | 586 | if (pkt_dev->vlan_id != 0xffff) |
34954ddc | 587 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
588 | pkt_dev->vlan_id, pkt_dev->vlan_p, |
589 | pkt_dev->vlan_cfi); | |
34954ddc | 590 | |
63adc6fb | 591 | if (pkt_dev->svlan_id != 0xffff) |
34954ddc | 592 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
593 | pkt_dev->svlan_id, pkt_dev->svlan_p, |
594 | pkt_dev->svlan_cfi); | |
34954ddc | 595 | |
63adc6fb | 596 | if (pkt_dev->tos) |
1ca7768c | 597 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); |
1ca7768c | 598 | |
63adc6fb | 599 | if (pkt_dev->traffic_class) |
1ca7768c | 600 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); |
1ca7768c | 601 | |
e99b99b4 RO |
602 | if (pkt_dev->node >= 0) |
603 | seq_printf(seq, " node: %d\n", pkt_dev->node); | |
604 | ||
ca6549af SW |
605 | seq_printf(seq, " Flags: "); |
606 | ||
222f1806 LC |
607 | if (pkt_dev->flags & F_IPV6) |
608 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 609 | |
222f1806 LC |
610 | if (pkt_dev->flags & F_IPSRC_RND) |
611 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 612 | |
222f1806 LC |
613 | if (pkt_dev->flags & F_IPDST_RND) |
614 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 615 | |
222f1806 LC |
616 | if (pkt_dev->flags & F_TXSIZE_RND) |
617 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 618 | |
222f1806 LC |
619 | if (pkt_dev->flags & F_UDPSRC_RND) |
620 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 621 | |
222f1806 LC |
622 | if (pkt_dev->flags & F_UDPDST_RND) |
623 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 624 | |
ca6549af SW |
625 | if (pkt_dev->flags & F_MPLS_RND) |
626 | seq_printf(seq, "MPLS_RND "); | |
627 | ||
45b270f8 RO |
628 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
629 | seq_printf(seq, "QUEUE_MAP_RND "); | |
630 | ||
e6fce5b9 RO |
631 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) |
632 | seq_printf(seq, "QUEUE_MAP_CPU "); | |
633 | ||
007a531b JHS |
634 | if (pkt_dev->cflows) { |
635 | if (pkt_dev->flags & F_FLOW_SEQ) | |
636 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
637 | else | |
638 | seq_printf(seq, "FLOW_RND "); | |
639 | } | |
640 | ||
a553e4a6 JHS |
641 | #ifdef CONFIG_XFRM |
642 | if (pkt_dev->flags & F_IPSEC_ON) | |
643 | seq_printf(seq, "IPSEC "); | |
644 | #endif | |
645 | ||
222f1806 LC |
646 | if (pkt_dev->flags & F_MACSRC_RND) |
647 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 648 | |
222f1806 LC |
649 | if (pkt_dev->flags & F_MACDST_RND) |
650 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 651 | |
34954ddc FF |
652 | if (pkt_dev->flags & F_VID_RND) |
653 | seq_printf(seq, "VID_RND "); | |
654 | ||
655 | if (pkt_dev->flags & F_SVID_RND) | |
656 | seq_printf(seq, "SVID_RND "); | |
657 | ||
e99b99b4 RO |
658 | if (pkt_dev->flags & F_NODE) |
659 | seq_printf(seq, "NODE_ALLOC "); | |
660 | ||
222f1806 LC |
661 | seq_puts(seq, "\n"); |
662 | ||
fd29cf72 | 663 | /* not really stopped, more like last-running-at */ |
398f382c | 664 | stopped = pkt_dev->running ? ktime_get() : pkt_dev->stopped_at; |
fd29cf72 SH |
665 | idle = pkt_dev->idle_acc; |
666 | do_div(idle, NSEC_PER_USEC); | |
1da177e4 | 667 | |
222f1806 | 668 | seq_printf(seq, |
fd29cf72 | 669 | "Current:\n pkts-sofar: %llu errors: %llu\n", |
222f1806 | 670 | (unsigned long long)pkt_dev->sofar, |
fd29cf72 SH |
671 | (unsigned long long)pkt_dev->errors); |
672 | ||
673 | seq_printf(seq, | |
674 | " started: %lluus stopped: %lluus idle: %lluus\n", | |
675 | (unsigned long long) ktime_to_us(pkt_dev->started_at), | |
676 | (unsigned long long) ktime_to_us(stopped), | |
677 | (unsigned long long) idle); | |
1da177e4 | 678 | |
222f1806 LC |
679 | seq_printf(seq, |
680 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
681 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
682 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 683 | |
222f1806 | 684 | if (pkt_dev->flags & F_IPV6) { |
47a0200d AD |
685 | seq_printf(seq, " cur_saddr: %pI6c cur_daddr: %pI6c\n", |
686 | &pkt_dev->cur_in6_saddr, | |
687 | &pkt_dev->cur_in6_daddr); | |
222f1806 | 688 | } else |
0373a946 AW |
689 | seq_printf(seq, " cur_saddr: %pI4 cur_daddr: %pI4\n", |
690 | &pkt_dev->cur_saddr, &pkt_dev->cur_daddr); | |
1da177e4 | 691 | |
222f1806 | 692 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 693 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 694 | |
45b270f8 RO |
695 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
696 | ||
222f1806 | 697 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
698 | |
699 | if (pkt_dev->result[0]) | |
222f1806 | 700 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 701 | else |
222f1806 | 702 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 703 | |
d50a6b56 | 704 | return 0; |
1da177e4 LT |
705 | } |
706 | ||
ca6549af | 707 | |
63adc6fb SH |
708 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, |
709 | __u32 *num) | |
ca6549af SW |
710 | { |
711 | int i = 0; | |
712 | *num = 0; | |
713 | ||
e71a4783 | 714 | for (; i < maxlen; i++) { |
82fd5b5d | 715 | int value; |
ca6549af SW |
716 | char c; |
717 | *num <<= 4; | |
718 | if (get_user(c, &user_buffer[i])) | |
719 | return -EFAULT; | |
82fd5b5d AS |
720 | value = hex_to_bin(c); |
721 | if (value >= 0) | |
722 | *num |= value; | |
ca6549af SW |
723 | else |
724 | break; | |
725 | } | |
726 | return i; | |
727 | } | |
728 | ||
222f1806 LC |
729 | static int count_trail_chars(const char __user * user_buffer, |
730 | unsigned int maxlen) | |
1da177e4 LT |
731 | { |
732 | int i; | |
733 | ||
734 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
735 | char c; |
736 | if (get_user(c, &user_buffer[i])) | |
737 | return -EFAULT; | |
738 | switch (c) { | |
1da177e4 LT |
739 | case '\"': |
740 | case '\n': | |
741 | case '\r': | |
742 | case '\t': | |
743 | case ' ': | |
744 | case '=': | |
745 | break; | |
746 | default: | |
747 | goto done; | |
3ff50b79 | 748 | } |
1da177e4 LT |
749 | } |
750 | done: | |
751 | return i; | |
752 | } | |
753 | ||
bf0813bd PG |
754 | static long num_arg(const char __user *user_buffer, unsigned long maxlen, |
755 | unsigned long *num) | |
1da177e4 | 756 | { |
d6182223 | 757 | int i; |
1da177e4 | 758 | *num = 0; |
222f1806 | 759 | |
d6182223 | 760 | for (i = 0; i < maxlen; i++) { |
222f1806 LC |
761 | char c; |
762 | if (get_user(c, &user_buffer[i])) | |
763 | return -EFAULT; | |
764 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 765 | *num *= 10; |
222f1806 | 766 | *num += c - '0'; |
1da177e4 LT |
767 | } else |
768 | break; | |
769 | } | |
770 | return i; | |
771 | } | |
772 | ||
222f1806 | 773 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 | 774 | { |
d6182223 | 775 | int i; |
1da177e4 | 776 | |
d6182223 | 777 | for (i = 0; i < maxlen; i++) { |
222f1806 LC |
778 | char c; |
779 | if (get_user(c, &user_buffer[i])) | |
780 | return -EFAULT; | |
781 | switch (c) { | |
1da177e4 LT |
782 | case '\"': |
783 | case '\n': | |
784 | case '\r': | |
785 | case '\t': | |
786 | case ' ': | |
787 | goto done_str; | |
788 | break; | |
789 | default: | |
790 | break; | |
3ff50b79 | 791 | } |
1da177e4 LT |
792 | } |
793 | done_str: | |
1da177e4 LT |
794 | return i; |
795 | } | |
796 | ||
ca6549af SW |
797 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
798 | { | |
95c96174 | 799 | unsigned int n = 0; |
ca6549af SW |
800 | char c; |
801 | ssize_t i = 0; | |
802 | int len; | |
803 | ||
804 | pkt_dev->nr_labels = 0; | |
805 | do { | |
806 | __u32 tmp; | |
1ca7768c | 807 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
808 | if (len <= 0) |
809 | return len; | |
810 | pkt_dev->labels[n] = htonl(tmp); | |
811 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
812 | pkt_dev->flags |= F_MPLS_RND; | |
813 | i += len; | |
814 | if (get_user(c, &buffer[i])) | |
815 | return -EFAULT; | |
816 | i++; | |
817 | n++; | |
818 | if (n >= MAX_MPLS_LABELS) | |
819 | return -E2BIG; | |
e71a4783 | 820 | } while (c == ','); |
ca6549af SW |
821 | |
822 | pkt_dev->nr_labels = n; | |
823 | return i; | |
824 | } | |
825 | ||
222f1806 LC |
826 | static ssize_t pktgen_if_write(struct file *file, |
827 | const char __user * user_buffer, size_t count, | |
828 | loff_t * offset) | |
1da177e4 | 829 | { |
8a994a71 | 830 | struct seq_file *seq = file->private_data; |
222f1806 | 831 | struct pktgen_dev *pkt_dev = seq->private; |
d6182223 | 832 | int i, max, len; |
1da177e4 LT |
833 | char name[16], valstr[32]; |
834 | unsigned long value = 0; | |
222f1806 LC |
835 | char *pg_result = NULL; |
836 | int tmp = 0; | |
1da177e4 | 837 | char buf[128]; |
222f1806 LC |
838 | |
839 | pg_result = &(pkt_dev->result[0]); | |
840 | ||
1da177e4 | 841 | if (count < 1) { |
f9467eae | 842 | pr_warning("wrong command format\n"); |
1da177e4 LT |
843 | return -EINVAL; |
844 | } | |
222f1806 | 845 | |
d6182223 PG |
846 | max = count; |
847 | tmp = count_trail_chars(user_buffer, max); | |
222f1806 | 848 | if (tmp < 0) { |
f9467eae | 849 | pr_warning("illegal format\n"); |
222f1806 | 850 | return tmp; |
1da177e4 | 851 | } |
d6182223 | 852 | i = tmp; |
222f1806 | 853 | |
1da177e4 LT |
854 | /* Read variable name */ |
855 | ||
856 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
63adc6fb | 857 | if (len < 0) |
222f1806 | 858 | return len; |
63adc6fb | 859 | |
1da177e4 | 860 | memset(name, 0, sizeof(name)); |
222f1806 | 861 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
862 | return -EFAULT; |
863 | i += len; | |
222f1806 LC |
864 | |
865 | max = count - i; | |
1da177e4 | 866 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
867 | if (len < 0) |
868 | return len; | |
869 | ||
1da177e4 LT |
870 | i += len; |
871 | ||
872 | if (debug) { | |
86c2c0a8 | 873 | size_t copy = min_t(size_t, count, 1023); |
448d7b5d NE |
874 | char tb[copy + 1]; |
875 | if (copy_from_user(tb, user_buffer, copy)) | |
1da177e4 | 876 | return -EFAULT; |
448d7b5d | 877 | tb[copy] = 0; |
f342cda7 JP |
878 | pr_debug("%s,%lu buffer -:%s:-\n", |
879 | name, (unsigned long)count, tb); | |
222f1806 | 880 | } |
1da177e4 LT |
881 | |
882 | if (!strcmp(name, "min_pkt_size")) { | |
883 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 884 | if (len < 0) |
222f1806 | 885 | return len; |
63adc6fb | 886 | |
1da177e4 | 887 | i += len; |
222f1806 LC |
888 | if (value < 14 + 20 + 8) |
889 | value = 14 + 20 + 8; | |
890 | if (value != pkt_dev->min_pkt_size) { | |
891 | pkt_dev->min_pkt_size = value; | |
892 | pkt_dev->cur_pkt_size = value; | |
893 | } | |
894 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
895 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
896 | return count; |
897 | } | |
898 | ||
222f1806 | 899 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 900 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 901 | if (len < 0) |
222f1806 | 902 | return len; |
63adc6fb | 903 | |
1da177e4 | 904 | i += len; |
222f1806 LC |
905 | if (value < 14 + 20 + 8) |
906 | value = 14 + 20 + 8; | |
907 | if (value != pkt_dev->max_pkt_size) { | |
908 | pkt_dev->max_pkt_size = value; | |
909 | pkt_dev->cur_pkt_size = value; | |
910 | } | |
911 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
912 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
913 | return count; |
914 | } | |
915 | ||
222f1806 | 916 | /* Shortcut for min = max */ |
1da177e4 LT |
917 | |
918 | if (!strcmp(name, "pkt_size")) { | |
919 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 920 | if (len < 0) |
222f1806 | 921 | return len; |
63adc6fb | 922 | |
1da177e4 | 923 | i += len; |
222f1806 LC |
924 | if (value < 14 + 20 + 8) |
925 | value = 14 + 20 + 8; | |
926 | if (value != pkt_dev->min_pkt_size) { | |
927 | pkt_dev->min_pkt_size = value; | |
928 | pkt_dev->max_pkt_size = value; | |
929 | pkt_dev->cur_pkt_size = value; | |
930 | } | |
1da177e4 LT |
931 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
932 | return count; | |
933 | } | |
934 | ||
222f1806 | 935 | if (!strcmp(name, "debug")) { |
1da177e4 | 936 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 937 | if (len < 0) |
222f1806 | 938 | return len; |
63adc6fb | 939 | |
1da177e4 | 940 | i += len; |
222f1806 | 941 | debug = value; |
1da177e4 LT |
942 | sprintf(pg_result, "OK: debug=%u", debug); |
943 | return count; | |
944 | } | |
945 | ||
222f1806 | 946 | if (!strcmp(name, "frags")) { |
1da177e4 | 947 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 948 | if (len < 0) |
222f1806 | 949 | return len; |
63adc6fb | 950 | |
1da177e4 LT |
951 | i += len; |
952 | pkt_dev->nfrags = value; | |
953 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
954 | return count; | |
955 | } | |
956 | if (!strcmp(name, "delay")) { | |
957 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 958 | if (len < 0) |
222f1806 | 959 | return len; |
63adc6fb | 960 | |
1da177e4 | 961 | i += len; |
fd29cf72 SH |
962 | if (value == 0x7FFFFFFF) |
963 | pkt_dev->delay = ULLONG_MAX; | |
964 | else | |
9240d715 | 965 | pkt_dev->delay = (u64)value; |
fd29cf72 SH |
966 | |
967 | sprintf(pg_result, "OK: delay=%llu", | |
968 | (unsigned long long) pkt_dev->delay); | |
1da177e4 LT |
969 | return count; |
970 | } | |
43d28b65 DT |
971 | if (!strcmp(name, "rate")) { |
972 | len = num_arg(&user_buffer[i], 10, &value); | |
973 | if (len < 0) | |
974 | return len; | |
975 | ||
976 | i += len; | |
977 | if (!value) | |
978 | return len; | |
979 | pkt_dev->delay = pkt_dev->min_pkt_size*8*NSEC_PER_USEC/value; | |
980 | if (debug) | |
f9467eae | 981 | pr_info("Delay set at: %llu ns\n", pkt_dev->delay); |
43d28b65 DT |
982 | |
983 | sprintf(pg_result, "OK: rate=%lu", value); | |
984 | return count; | |
985 | } | |
986 | if (!strcmp(name, "ratep")) { | |
987 | len = num_arg(&user_buffer[i], 10, &value); | |
988 | if (len < 0) | |
989 | return len; | |
990 | ||
991 | i += len; | |
992 | if (!value) | |
993 | return len; | |
994 | pkt_dev->delay = NSEC_PER_SEC/value; | |
995 | if (debug) | |
f9467eae | 996 | pr_info("Delay set at: %llu ns\n", pkt_dev->delay); |
43d28b65 DT |
997 | |
998 | sprintf(pg_result, "OK: rate=%lu", value); | |
999 | return count; | |
1000 | } | |
222f1806 | 1001 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 1002 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1003 | if (len < 0) |
222f1806 | 1004 | return len; |
63adc6fb | 1005 | |
1da177e4 | 1006 | i += len; |
222f1806 LC |
1007 | if (value != pkt_dev->udp_src_min) { |
1008 | pkt_dev->udp_src_min = value; | |
1009 | pkt_dev->cur_udp_src = value; | |
1010 | } | |
1da177e4 LT |
1011 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
1012 | return count; | |
1013 | } | |
222f1806 | 1014 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 1015 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1016 | if (len < 0) |
222f1806 | 1017 | return len; |
63adc6fb | 1018 | |
1da177e4 | 1019 | i += len; |
222f1806 LC |
1020 | if (value != pkt_dev->udp_dst_min) { |
1021 | pkt_dev->udp_dst_min = value; | |
1022 | pkt_dev->cur_udp_dst = value; | |
1023 | } | |
1da177e4 LT |
1024 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
1025 | return count; | |
1026 | } | |
222f1806 | 1027 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 1028 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1029 | if (len < 0) |
222f1806 | 1030 | return len; |
63adc6fb | 1031 | |
1da177e4 | 1032 | i += len; |
222f1806 LC |
1033 | if (value != pkt_dev->udp_src_max) { |
1034 | pkt_dev->udp_src_max = value; | |
1035 | pkt_dev->cur_udp_src = value; | |
1036 | } | |
1da177e4 LT |
1037 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
1038 | return count; | |
1039 | } | |
222f1806 | 1040 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 1041 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1042 | if (len < 0) |
222f1806 | 1043 | return len; |
63adc6fb | 1044 | |
1da177e4 | 1045 | i += len; |
222f1806 LC |
1046 | if (value != pkt_dev->udp_dst_max) { |
1047 | pkt_dev->udp_dst_max = value; | |
1048 | pkt_dev->cur_udp_dst = value; | |
1049 | } | |
1da177e4 LT |
1050 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1051 | return count; | |
1052 | } | |
1053 | if (!strcmp(name, "clone_skb")) { | |
1054 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1055 | if (len < 0) |
222f1806 | 1056 | return len; |
d8873315 NH |
1057 | if ((value > 0) && |
1058 | (!(pkt_dev->odev->priv_flags & IFF_TX_SKB_SHARING))) | |
1059 | return -ENOTSUPP; | |
1da177e4 | 1060 | i += len; |
222f1806 LC |
1061 | pkt_dev->clone_skb = value; |
1062 | ||
1da177e4 LT |
1063 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1064 | return count; | |
1065 | } | |
1066 | if (!strcmp(name, "count")) { | |
1067 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1068 | if (len < 0) |
222f1806 | 1069 | return len; |
63adc6fb | 1070 | |
1da177e4 LT |
1071 | i += len; |
1072 | pkt_dev->count = value; | |
1073 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1074 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1075 | return count; |
1076 | } | |
1077 | if (!strcmp(name, "src_mac_count")) { | |
1078 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1079 | if (len < 0) |
222f1806 | 1080 | return len; |
63adc6fb | 1081 | |
1da177e4 LT |
1082 | i += len; |
1083 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1084 | pkt_dev->src_mac_count = value; |
1085 | pkt_dev->cur_src_mac_offset = 0; | |
1086 | } | |
1087 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1088 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1089 | return count; |
1090 | } | |
1091 | if (!strcmp(name, "dst_mac_count")) { | |
1092 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1093 | if (len < 0) |
222f1806 | 1094 | return len; |
63adc6fb | 1095 | |
1da177e4 LT |
1096 | i += len; |
1097 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1098 | pkt_dev->dst_mac_count = value; |
1099 | pkt_dev->cur_dst_mac_offset = 0; | |
1100 | } | |
1101 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1102 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1103 | return count; |
1104 | } | |
e99b99b4 RO |
1105 | if (!strcmp(name, "node")) { |
1106 | len = num_arg(&user_buffer[i], 10, &value); | |
1107 | if (len < 0) | |
1108 | return len; | |
1109 | ||
1110 | i += len; | |
1111 | ||
1112 | if (node_possible(value)) { | |
1113 | pkt_dev->node = value; | |
1114 | sprintf(pg_result, "OK: node=%d", pkt_dev->node); | |
26ad7879 ED |
1115 | if (pkt_dev->page) { |
1116 | put_page(pkt_dev->page); | |
1117 | pkt_dev->page = NULL; | |
1118 | } | |
e99b99b4 RO |
1119 | } |
1120 | else | |
1121 | sprintf(pg_result, "ERROR: node not possible"); | |
1122 | return count; | |
1123 | } | |
1da177e4 | 1124 | if (!strcmp(name, "flag")) { |
222f1806 LC |
1125 | char f[32]; |
1126 | memset(f, 0, 32); | |
1da177e4 | 1127 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
63adc6fb | 1128 | if (len < 0) |
222f1806 | 1129 | return len; |
63adc6fb | 1130 | |
1da177e4 LT |
1131 | if (copy_from_user(f, &user_buffer[i], len)) |
1132 | return -EFAULT; | |
1133 | i += len; | |
222f1806 LC |
1134 | if (strcmp(f, "IPSRC_RND") == 0) |
1135 | pkt_dev->flags |= F_IPSRC_RND; | |
1136 | ||
1137 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1138 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1139 | ||
1140 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1141 | pkt_dev->flags |= F_TXSIZE_RND; | |
1142 | ||
1143 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1144 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1145 | ||
1146 | else if (strcmp(f, "IPDST_RND") == 0) | |
1147 | pkt_dev->flags |= F_IPDST_RND; | |
1148 | ||
1149 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1150 | pkt_dev->flags &= ~F_IPDST_RND; | |
1151 | ||
1152 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1153 | pkt_dev->flags |= F_UDPSRC_RND; | |
1154 | ||
1155 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1156 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1157 | ||
1158 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1159 | pkt_dev->flags |= F_UDPDST_RND; | |
1160 | ||
1161 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1162 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1163 | ||
1164 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1165 | pkt_dev->flags |= F_MACSRC_RND; | |
1166 | ||
1167 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1168 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1169 | ||
1170 | else if (strcmp(f, "MACDST_RND") == 0) | |
1171 | pkt_dev->flags |= F_MACDST_RND; | |
1172 | ||
1173 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1174 | pkt_dev->flags &= ~F_MACDST_RND; | |
1175 | ||
ca6549af SW |
1176 | else if (strcmp(f, "MPLS_RND") == 0) |
1177 | pkt_dev->flags |= F_MPLS_RND; | |
1178 | ||
1179 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1180 | pkt_dev->flags &= ~F_MPLS_RND; | |
1181 | ||
34954ddc FF |
1182 | else if (strcmp(f, "VID_RND") == 0) |
1183 | pkt_dev->flags |= F_VID_RND; | |
1184 | ||
1185 | else if (strcmp(f, "!VID_RND") == 0) | |
1186 | pkt_dev->flags &= ~F_VID_RND; | |
1187 | ||
1188 | else if (strcmp(f, "SVID_RND") == 0) | |
1189 | pkt_dev->flags |= F_SVID_RND; | |
1190 | ||
1191 | else if (strcmp(f, "!SVID_RND") == 0) | |
1192 | pkt_dev->flags &= ~F_SVID_RND; | |
1193 | ||
007a531b JHS |
1194 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1195 | pkt_dev->flags |= F_FLOW_SEQ; | |
1196 | ||
45b270f8 RO |
1197 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1198 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1199 | ||
1200 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1201 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
e6fce5b9 RO |
1202 | |
1203 | else if (strcmp(f, "QUEUE_MAP_CPU") == 0) | |
1204 | pkt_dev->flags |= F_QUEUE_MAP_CPU; | |
1205 | ||
1206 | else if (strcmp(f, "!QUEUE_MAP_CPU") == 0) | |
1207 | pkt_dev->flags &= ~F_QUEUE_MAP_CPU; | |
a553e4a6 JHS |
1208 | #ifdef CONFIG_XFRM |
1209 | else if (strcmp(f, "IPSEC") == 0) | |
1210 | pkt_dev->flags |= F_IPSEC_ON; | |
1211 | #endif | |
1212 | ||
1ca7768c FF |
1213 | else if (strcmp(f, "!IPV6") == 0) |
1214 | pkt_dev->flags &= ~F_IPV6; | |
1215 | ||
e99b99b4 RO |
1216 | else if (strcmp(f, "NODE_ALLOC") == 0) |
1217 | pkt_dev->flags |= F_NODE; | |
1218 | ||
1219 | else if (strcmp(f, "!NODE_ALLOC") == 0) | |
1220 | pkt_dev->flags &= ~F_NODE; | |
1221 | ||
222f1806 LC |
1222 | else { |
1223 | sprintf(pg_result, | |
1224 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1225 | f, | |
1ca7768c | 1226 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
e99b99b4 | 1227 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC, NODE_ALLOC\n"); |
222f1806 LC |
1228 | return count; |
1229 | } | |
1da177e4 LT |
1230 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1231 | return count; | |
1232 | } | |
1233 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1234 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
63adc6fb | 1235 | if (len < 0) |
222f1806 | 1236 | return len; |
1da177e4 | 1237 | |
222f1806 | 1238 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1239 | return -EFAULT; |
222f1806 LC |
1240 | buf[len] = 0; |
1241 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1242 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1243 | strncpy(pkt_dev->dst_min, buf, len); | |
1244 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1245 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1246 | } | |
1247 | if (debug) | |
f342cda7 | 1248 | pr_debug("dst_min set to: %s\n", pkt_dev->dst_min); |
222f1806 | 1249 | i += len; |
1da177e4 LT |
1250 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1251 | return count; | |
1252 | } | |
1253 | if (!strcmp(name, "dst_max")) { | |
1254 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
63adc6fb | 1255 | if (len < 0) |
222f1806 | 1256 | return len; |
63adc6fb | 1257 | |
1da177e4 | 1258 | |
222f1806 | 1259 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1260 | return -EFAULT; |
1261 | ||
222f1806 LC |
1262 | buf[len] = 0; |
1263 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1264 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1265 | strncpy(pkt_dev->dst_max, buf, len); | |
1266 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1267 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1268 | } | |
1269 | if (debug) | |
f342cda7 | 1270 | pr_debug("dst_max set to: %s\n", pkt_dev->dst_max); |
1da177e4 LT |
1271 | i += len; |
1272 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1273 | return count; | |
1274 | } | |
1275 | if (!strcmp(name, "dst6")) { | |
1276 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1277 | if (len < 0) |
1278 | return len; | |
1da177e4 LT |
1279 | |
1280 | pkt_dev->flags |= F_IPV6; | |
1281 | ||
222f1806 | 1282 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1283 | return -EFAULT; |
222f1806 | 1284 | buf[len] = 0; |
1da177e4 | 1285 | |
c468fb13 | 1286 | in6_pton(buf, -1, pkt_dev->in6_daddr.s6_addr, -1, NULL); |
47a0200d | 1287 | snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->in6_daddr); |
1da177e4 | 1288 | |
4e3fd7a0 | 1289 | pkt_dev->cur_in6_daddr = pkt_dev->in6_daddr; |
1da177e4 | 1290 | |
222f1806 | 1291 | if (debug) |
f342cda7 | 1292 | pr_debug("dst6 set to: %s\n", buf); |
1da177e4 | 1293 | |
222f1806 | 1294 | i += len; |
1da177e4 LT |
1295 | sprintf(pg_result, "OK: dst6=%s", buf); |
1296 | return count; | |
1297 | } | |
1298 | if (!strcmp(name, "dst6_min")) { | |
1299 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1300 | if (len < 0) |
1301 | return len; | |
1da177e4 LT |
1302 | |
1303 | pkt_dev->flags |= F_IPV6; | |
1304 | ||
222f1806 | 1305 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1306 | return -EFAULT; |
222f1806 | 1307 | buf[len] = 0; |
1da177e4 | 1308 | |
c468fb13 | 1309 | in6_pton(buf, -1, pkt_dev->min_in6_daddr.s6_addr, -1, NULL); |
47a0200d | 1310 | snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->min_in6_daddr); |
1da177e4 | 1311 | |
4e3fd7a0 | 1312 | pkt_dev->cur_in6_daddr = pkt_dev->min_in6_daddr; |
222f1806 | 1313 | if (debug) |
f342cda7 | 1314 | pr_debug("dst6_min set to: %s\n", buf); |
1da177e4 | 1315 | |
222f1806 | 1316 | i += len; |
1da177e4 LT |
1317 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1318 | return count; | |
1319 | } | |
1320 | if (!strcmp(name, "dst6_max")) { | |
1321 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1322 | if (len < 0) |
1323 | return len; | |
1da177e4 LT |
1324 | |
1325 | pkt_dev->flags |= F_IPV6; | |
1326 | ||
222f1806 | 1327 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1328 | return -EFAULT; |
222f1806 | 1329 | buf[len] = 0; |
1da177e4 | 1330 | |
c468fb13 | 1331 | in6_pton(buf, -1, pkt_dev->max_in6_daddr.s6_addr, -1, NULL); |
47a0200d | 1332 | snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->max_in6_daddr); |
1da177e4 | 1333 | |
222f1806 | 1334 | if (debug) |
f342cda7 | 1335 | pr_debug("dst6_max set to: %s\n", buf); |
1da177e4 | 1336 | |
222f1806 | 1337 | i += len; |
1da177e4 LT |
1338 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1339 | return count; | |
1340 | } | |
1341 | if (!strcmp(name, "src6")) { | |
1342 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1343 | if (len < 0) |
1344 | return len; | |
1da177e4 LT |
1345 | |
1346 | pkt_dev->flags |= F_IPV6; | |
1347 | ||
222f1806 | 1348 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1349 | return -EFAULT; |
222f1806 | 1350 | buf[len] = 0; |
1da177e4 | 1351 | |
c468fb13 | 1352 | in6_pton(buf, -1, pkt_dev->in6_saddr.s6_addr, -1, NULL); |
47a0200d | 1353 | snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->in6_saddr); |
1da177e4 | 1354 | |
4e3fd7a0 | 1355 | pkt_dev->cur_in6_saddr = pkt_dev->in6_saddr; |
1da177e4 | 1356 | |
222f1806 | 1357 | if (debug) |
f342cda7 | 1358 | pr_debug("src6 set to: %s\n", buf); |
222f1806 LC |
1359 | |
1360 | i += len; | |
1da177e4 LT |
1361 | sprintf(pg_result, "OK: src6=%s", buf); |
1362 | return count; | |
1363 | } | |
1364 | if (!strcmp(name, "src_min")) { | |
1365 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
63adc6fb | 1366 | if (len < 0) |
222f1806 | 1367 | return len; |
63adc6fb | 1368 | |
222f1806 | 1369 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1370 | return -EFAULT; |
222f1806 LC |
1371 | buf[len] = 0; |
1372 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1373 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1374 | strncpy(pkt_dev->src_min, buf, len); | |
1375 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1376 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1377 | } | |
1378 | if (debug) | |
f342cda7 | 1379 | pr_debug("src_min set to: %s\n", pkt_dev->src_min); |
1da177e4 LT |
1380 | i += len; |
1381 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1382 | return count; | |
1383 | } | |
1384 | if (!strcmp(name, "src_max")) { | |
1385 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
63adc6fb | 1386 | if (len < 0) |
222f1806 | 1387 | return len; |
63adc6fb | 1388 | |
222f1806 | 1389 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1390 | return -EFAULT; |
222f1806 LC |
1391 | buf[len] = 0; |
1392 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1393 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1394 | strncpy(pkt_dev->src_max, buf, len); | |
1395 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1396 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1397 | } | |
1398 | if (debug) | |
f342cda7 | 1399 | pr_debug("src_max set to: %s\n", pkt_dev->src_max); |
1da177e4 LT |
1400 | i += len; |
1401 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1402 | return count; | |
1403 | } | |
1404 | if (!strcmp(name, "dst_mac")) { | |
1da177e4 | 1405 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1406 | if (len < 0) |
222f1806 | 1407 | return len; |
63adc6fb | 1408 | |
1da177e4 | 1409 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1410 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 | 1411 | return -EFAULT; |
1da177e4 | 1412 | |
4940fc88 AD |
1413 | if (!mac_pton(valstr, pkt_dev->dst_mac)) |
1414 | return -EINVAL; | |
1da177e4 | 1415 | /* Set up Dest MAC */ |
4940fc88 | 1416 | memcpy(&pkt_dev->hh[0], pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1417 | |
4940fc88 | 1418 | sprintf(pg_result, "OK: dstmac %pM", pkt_dev->dst_mac); |
1da177e4 LT |
1419 | return count; |
1420 | } | |
1421 | if (!strcmp(name, "src_mac")) { | |
1da177e4 | 1422 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1423 | if (len < 0) |
222f1806 | 1424 | return len; |
63adc6fb | 1425 | |
1da177e4 | 1426 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1427 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 | 1428 | return -EFAULT; |
1da177e4 | 1429 | |
4940fc88 AD |
1430 | if (!mac_pton(valstr, pkt_dev->src_mac)) |
1431 | return -EINVAL; | |
ce5d0b47 | 1432 | /* Set up Src MAC */ |
4940fc88 | 1433 | memcpy(&pkt_dev->hh[6], pkt_dev->src_mac, ETH_ALEN); |
ce5d0b47 | 1434 | |
4940fc88 | 1435 | sprintf(pg_result, "OK: srcmac %pM", pkt_dev->src_mac); |
1da177e4 LT |
1436 | return count; |
1437 | } | |
1438 | ||
222f1806 LC |
1439 | if (!strcmp(name, "clear_counters")) { |
1440 | pktgen_clear_counters(pkt_dev); | |
1441 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1442 | return count; | |
1443 | } | |
1da177e4 LT |
1444 | |
1445 | if (!strcmp(name, "flows")) { | |
1446 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1447 | if (len < 0) |
222f1806 | 1448 | return len; |
63adc6fb | 1449 | |
1da177e4 LT |
1450 | i += len; |
1451 | if (value > MAX_CFLOWS) | |
1452 | value = MAX_CFLOWS; | |
1453 | ||
1454 | pkt_dev->cflows = value; | |
1455 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1456 | return count; | |
1457 | } | |
1458 | ||
1459 | if (!strcmp(name, "flowlen")) { | |
1460 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1461 | if (len < 0) |
222f1806 | 1462 | return len; |
63adc6fb | 1463 | |
1da177e4 LT |
1464 | i += len; |
1465 | pkt_dev->lflow = value; | |
1466 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1467 | return count; | |
1468 | } | |
222f1806 | 1469 | |
45b270f8 RO |
1470 | if (!strcmp(name, "queue_map_min")) { |
1471 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1472 | if (len < 0) |
45b270f8 | 1473 | return len; |
63adc6fb | 1474 | |
45b270f8 RO |
1475 | i += len; |
1476 | pkt_dev->queue_map_min = value; | |
1477 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1478 | return count; | |
1479 | } | |
1480 | ||
1481 | if (!strcmp(name, "queue_map_max")) { | |
1482 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1483 | if (len < 0) |
45b270f8 | 1484 | return len; |
63adc6fb | 1485 | |
45b270f8 RO |
1486 | i += len; |
1487 | pkt_dev->queue_map_max = value; | |
1488 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1489 | return count; | |
1490 | } | |
1491 | ||
ca6549af | 1492 | if (!strcmp(name, "mpls")) { |
95c96174 | 1493 | unsigned int n, cnt; |
cfcabdcc | 1494 | |
ca6549af | 1495 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1496 | if (len < 0) |
1497 | return len; | |
ca6549af | 1498 | i += len; |
cfcabdcc | 1499 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1500 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1501 | cnt += sprintf(pg_result + cnt, |
1502 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1503 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1504 | |
1505 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1506 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1507 | pkt_dev->svlan_id = 0xffff; | |
1508 | ||
1509 | if (debug) | |
f342cda7 | 1510 | pr_debug("VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1511 | } |
1512 | return count; | |
1513 | } | |
1514 | ||
1515 | if (!strcmp(name, "vlan_id")) { | |
1516 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1517 | if (len < 0) |
34954ddc | 1518 | return len; |
63adc6fb | 1519 | |
34954ddc FF |
1520 | i += len; |
1521 | if (value <= 4095) { | |
1522 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1523 | ||
1524 | if (debug) | |
f342cda7 | 1525 | pr_debug("VLAN turned on\n"); |
34954ddc FF |
1526 | |
1527 | if (debug && pkt_dev->nr_labels) | |
f342cda7 | 1528 | pr_debug("MPLS auto turned off\n"); |
34954ddc FF |
1529 | |
1530 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1531 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1532 | } else { | |
1533 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1534 | pkt_dev->svlan_id = 0xffff; | |
1535 | ||
1536 | if (debug) | |
f342cda7 | 1537 | pr_debug("VLAN/SVLAN turned off\n"); |
34954ddc FF |
1538 | } |
1539 | return count; | |
1540 | } | |
1541 | ||
1542 | if (!strcmp(name, "vlan_p")) { | |
1543 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1544 | if (len < 0) |
34954ddc | 1545 | return len; |
63adc6fb | 1546 | |
34954ddc FF |
1547 | i += len; |
1548 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1549 | pkt_dev->vlan_p = value; | |
1550 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1551 | } else { | |
1552 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1553 | } | |
1554 | return count; | |
1555 | } | |
1556 | ||
1557 | if (!strcmp(name, "vlan_cfi")) { | |
1558 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1559 | if (len < 0) |
34954ddc | 1560 | return len; |
63adc6fb | 1561 | |
34954ddc FF |
1562 | i += len; |
1563 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1564 | pkt_dev->vlan_cfi = value; | |
1565 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1566 | } else { | |
1567 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1568 | } | |
1569 | return count; | |
1570 | } | |
1571 | ||
1572 | if (!strcmp(name, "svlan_id")) { | |
1573 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1574 | if (len < 0) |
34954ddc | 1575 | return len; |
63adc6fb | 1576 | |
34954ddc FF |
1577 | i += len; |
1578 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1579 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1580 | ||
1581 | if (debug) | |
f342cda7 | 1582 | pr_debug("SVLAN turned on\n"); |
34954ddc FF |
1583 | |
1584 | if (debug && pkt_dev->nr_labels) | |
f342cda7 | 1585 | pr_debug("MPLS auto turned off\n"); |
34954ddc FF |
1586 | |
1587 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1588 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1589 | } else { | |
1590 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1591 | pkt_dev->svlan_id = 0xffff; | |
1592 | ||
1593 | if (debug) | |
f342cda7 | 1594 | pr_debug("VLAN/SVLAN turned off\n"); |
34954ddc FF |
1595 | } |
1596 | return count; | |
1597 | } | |
1598 | ||
1599 | if (!strcmp(name, "svlan_p")) { | |
1600 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1601 | if (len < 0) |
34954ddc | 1602 | return len; |
63adc6fb | 1603 | |
34954ddc FF |
1604 | i += len; |
1605 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1606 | pkt_dev->svlan_p = value; | |
1607 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1608 | } else { | |
1609 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1610 | } | |
1611 | return count; | |
1612 | } | |
1613 | ||
1614 | if (!strcmp(name, "svlan_cfi")) { | |
1615 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1616 | if (len < 0) |
34954ddc | 1617 | return len; |
63adc6fb | 1618 | |
34954ddc FF |
1619 | i += len; |
1620 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1621 | pkt_dev->svlan_cfi = value; | |
1622 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1623 | } else { | |
1624 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1625 | } | |
ca6549af SW |
1626 | return count; |
1627 | } | |
1628 | ||
1ca7768c FF |
1629 | if (!strcmp(name, "tos")) { |
1630 | __u32 tmp_value = 0; | |
1631 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1632 | if (len < 0) |
1ca7768c | 1633 | return len; |
63adc6fb | 1634 | |
1ca7768c FF |
1635 | i += len; |
1636 | if (len == 2) { | |
1637 | pkt_dev->tos = tmp_value; | |
1638 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1639 | } else { | |
1640 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1641 | } | |
1642 | return count; | |
1643 | } | |
1644 | ||
1645 | if (!strcmp(name, "traffic_class")) { | |
1646 | __u32 tmp_value = 0; | |
1647 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1648 | if (len < 0) |
1ca7768c | 1649 | return len; |
63adc6fb | 1650 | |
1ca7768c FF |
1651 | i += len; |
1652 | if (len == 2) { | |
1653 | pkt_dev->traffic_class = tmp_value; | |
1654 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1655 | } else { | |
1656 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1657 | } | |
1658 | return count; | |
1659 | } | |
1660 | ||
9e50e3ac JF |
1661 | if (!strcmp(name, "skb_priority")) { |
1662 | len = num_arg(&user_buffer[i], 9, &value); | |
1663 | if (len < 0) | |
1664 | return len; | |
1665 | ||
1666 | i += len; | |
1667 | pkt_dev->skb_priority = value; | |
1668 | sprintf(pg_result, "OK: skb_priority=%i", | |
1669 | pkt_dev->skb_priority); | |
1670 | return count; | |
1671 | } | |
1672 | ||
1da177e4 LT |
1673 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1674 | return -EINVAL; | |
1675 | } | |
1676 | ||
d50a6b56 | 1677 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1678 | { |
d50a6b56 SH |
1679 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1680 | } | |
1da177e4 | 1681 | |
9a32144e | 1682 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1683 | .owner = THIS_MODULE, |
1684 | .open = pktgen_if_open, | |
1685 | .read = seq_read, | |
1686 | .llseek = seq_lseek, | |
1687 | .write = pktgen_if_write, | |
1688 | .release = single_release, | |
d50a6b56 | 1689 | }; |
1da177e4 | 1690 | |
d50a6b56 SH |
1691 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1692 | { | |
222f1806 | 1693 | struct pktgen_thread *t = seq->private; |
648fda74 | 1694 | const struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1695 | |
1696 | BUG_ON(!t); | |
1da177e4 | 1697 | |
222f1806 | 1698 | seq_printf(seq, "Running: "); |
1da177e4 | 1699 | |
222f1806 | 1700 | if_lock(t); |
c26a8016 | 1701 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1702 | if (pkt_dev->running) |
593f63b0 | 1703 | seq_printf(seq, "%s ", pkt_dev->odevname); |
1da177e4 | 1704 | |
222f1806 LC |
1705 | seq_printf(seq, "\nStopped: "); |
1706 | ||
c26a8016 | 1707 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1708 | if (!pkt_dev->running) |
593f63b0 | 1709 | seq_printf(seq, "%s ", pkt_dev->odevname); |
1da177e4 LT |
1710 | |
1711 | if (t->result[0]) | |
d50a6b56 | 1712 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1713 | else |
d50a6b56 | 1714 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1715 | |
222f1806 | 1716 | if_unlock(t); |
1da177e4 | 1717 | |
d50a6b56 | 1718 | return 0; |
1da177e4 LT |
1719 | } |
1720 | ||
d50a6b56 | 1721 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1722 | const char __user * user_buffer, |
1723 | size_t count, loff_t * offset) | |
1da177e4 | 1724 | { |
8a994a71 | 1725 | struct seq_file *seq = file->private_data; |
222f1806 | 1726 | struct pktgen_thread *t = seq->private; |
d6182223 | 1727 | int i, max, len, ret; |
1da177e4 | 1728 | char name[40]; |
222f1806 | 1729 | char *pg_result; |
d50a6b56 | 1730 | |
1da177e4 | 1731 | if (count < 1) { |
222f1806 | 1732 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1733 | return -EINVAL; |
1734 | } | |
d50a6b56 | 1735 | |
d6182223 PG |
1736 | max = count; |
1737 | len = count_trail_chars(user_buffer, max); | |
222f1806 | 1738 | if (len < 0) |
d50a6b56 SH |
1739 | return len; |
1740 | ||
d6182223 | 1741 | i = len; |
d50a6b56 | 1742 | |
1da177e4 LT |
1743 | /* Read variable name */ |
1744 | ||
1745 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1746 | if (len < 0) |
d50a6b56 | 1747 | return len; |
222f1806 | 1748 | |
1da177e4 LT |
1749 | memset(name, 0, sizeof(name)); |
1750 | if (copy_from_user(name, &user_buffer[i], len)) | |
1751 | return -EFAULT; | |
1752 | i += len; | |
d50a6b56 | 1753 | |
222f1806 | 1754 | max = count - i; |
1da177e4 | 1755 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1756 | if (len < 0) |
d50a6b56 SH |
1757 | return len; |
1758 | ||
1da177e4 LT |
1759 | i += len; |
1760 | ||
d50a6b56 | 1761 | if (debug) |
f342cda7 | 1762 | pr_debug("t=%s, count=%lu\n", name, (unsigned long)count); |
1da177e4 | 1763 | |
222f1806 | 1764 | if (!t) { |
f9467eae | 1765 | pr_err("ERROR: No thread\n"); |
1da177e4 LT |
1766 | ret = -EINVAL; |
1767 | goto out; | |
1768 | } | |
1769 | ||
1770 | pg_result = &(t->result[0]); | |
1771 | ||
222f1806 LC |
1772 | if (!strcmp(name, "add_device")) { |
1773 | char f[32]; | |
1774 | memset(f, 0, 32); | |
1da177e4 | 1775 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1776 | if (len < 0) { |
1777 | ret = len; | |
1da177e4 LT |
1778 | goto out; |
1779 | } | |
222f1806 | 1780 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1781 | return -EFAULT; |
1782 | i += len; | |
6146e6a4 | 1783 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1784 | pktgen_add_device(t, f); |
6146e6a4 | 1785 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1786 | ret = count; |
1787 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1788 | goto out; |
1789 | } | |
1790 | ||
222f1806 | 1791 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1792 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1793 | t->control |= T_REMDEVALL; |
6146e6a4 | 1794 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1795 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1796 | ret = count; |
222f1806 | 1797 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1798 | goto out; |
1799 | } | |
1800 | ||
222f1806 | 1801 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1802 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1803 | ret = count; |
1da177e4 LT |
1804 | goto out; |
1805 | } | |
1806 | ||
1807 | ret = -EINVAL; | |
222f1806 | 1808 | out: |
1da177e4 LT |
1809 | return ret; |
1810 | } | |
1811 | ||
d50a6b56 | 1812 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1813 | { |
d50a6b56 | 1814 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1815 | } |
1816 | ||
9a32144e | 1817 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1818 | .owner = THIS_MODULE, |
1819 | .open = pktgen_thread_open, | |
1820 | .read = seq_read, | |
1821 | .llseek = seq_lseek, | |
1822 | .write = pktgen_thread_write, | |
1823 | .release = single_release, | |
d50a6b56 | 1824 | }; |
1da177e4 LT |
1825 | |
1826 | /* Think find or remove for NN */ | |
222f1806 | 1827 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1828 | { |
1829 | struct pktgen_thread *t; | |
1830 | struct pktgen_dev *pkt_dev = NULL; | |
3e984840 | 1831 | bool exact = (remove == FIND); |
1da177e4 | 1832 | |
cdcdbe0b | 1833 | list_for_each_entry(t, &pktgen_threads, th_list) { |
3e984840 | 1834 | pkt_dev = pktgen_find_dev(t, ifname, exact); |
1da177e4 | 1835 | if (pkt_dev) { |
222f1806 LC |
1836 | if (remove) { |
1837 | if_lock(t); | |
1838 | pkt_dev->removal_mark = 1; | |
1839 | t->control |= T_REMDEV; | |
1840 | if_unlock(t); | |
1841 | } | |
1da177e4 LT |
1842 | break; |
1843 | } | |
1da177e4 | 1844 | } |
222f1806 | 1845 | return pkt_dev; |
1da177e4 LT |
1846 | } |
1847 | ||
95ed63f7 AK |
1848 | /* |
1849 | * mark a device for removal | |
1850 | */ | |
39df232f | 1851 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1852 | { |
1853 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1854 | const int max_tries = 10, msec_per_try = 125; |
1855 | int i = 0; | |
95ed63f7 | 1856 | |
6146e6a4 | 1857 | mutex_lock(&pktgen_thread_lock); |
f9467eae | 1858 | pr_debug("%s: marking %s for removal\n", __func__, ifname); |
95ed63f7 | 1859 | |
222f1806 | 1860 | while (1) { |
95ed63f7 AK |
1861 | |
1862 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1863 | if (pkt_dev == NULL) |
1864 | break; /* success */ | |
95ed63f7 | 1865 | |
6146e6a4 | 1866 | mutex_unlock(&pktgen_thread_lock); |
f9467eae JP |
1867 | pr_debug("%s: waiting for %s to disappear....\n", |
1868 | __func__, ifname); | |
95ed63f7 | 1869 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1870 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1871 | |
1872 | if (++i >= max_tries) { | |
f9467eae JP |
1873 | pr_err("%s: timed out after waiting %d msec for device %s to be removed\n", |
1874 | __func__, msec_per_try * i, ifname); | |
95ed63f7 AK |
1875 | break; |
1876 | } | |
1877 | ||
1878 | } | |
1879 | ||
6146e6a4 | 1880 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1881 | } |
95ed63f7 | 1882 | |
39df232f SH |
1883 | static void pktgen_change_name(struct net_device *dev) |
1884 | { | |
1885 | struct pktgen_thread *t; | |
1886 | ||
1887 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1888 | struct pktgen_dev *pkt_dev; | |
1889 | ||
1890 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1891 | if (pkt_dev->odev != dev) | |
1892 | continue; | |
1893 | ||
1894 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1895 | ||
2975315b AD |
1896 | pkt_dev->entry = proc_create_data(dev->name, 0600, |
1897 | pg_proc_dir, | |
1898 | &pktgen_if_fops, | |
1899 | pkt_dev); | |
39df232f | 1900 | if (!pkt_dev->entry) |
f9467eae JP |
1901 | pr_err("can't move proc entry for '%s'\n", |
1902 | dev->name); | |
39df232f SH |
1903 | break; |
1904 | } | |
1905 | } | |
1da177e4 LT |
1906 | } |
1907 | ||
222f1806 LC |
1908 | static int pktgen_device_event(struct notifier_block *unused, |
1909 | unsigned long event, void *ptr) | |
1da177e4 | 1910 | { |
39df232f | 1911 | struct net_device *dev = ptr; |
1da177e4 | 1912 | |
c57b5468 | 1913 | if (!net_eq(dev_net(dev), &init_net) || pktgen_exiting) |
e9dc8653 EB |
1914 | return NOTIFY_DONE; |
1915 | ||
1da177e4 LT |
1916 | /* It is OK that we do not hold the group lock right now, |
1917 | * as we run under the RTNL lock. | |
1918 | */ | |
1919 | ||
1920 | switch (event) { | |
39df232f SH |
1921 | case NETDEV_CHANGENAME: |
1922 | pktgen_change_name(dev); | |
1da177e4 | 1923 | break; |
222f1806 | 1924 | |
1da177e4 | 1925 | case NETDEV_UNREGISTER: |
222f1806 | 1926 | pktgen_mark_device(dev->name); |
1da177e4 | 1927 | break; |
3ff50b79 | 1928 | } |
1da177e4 LT |
1929 | |
1930 | return NOTIFY_DONE; | |
1931 | } | |
1932 | ||
63adc6fb SH |
1933 | static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev, |
1934 | const char *ifname) | |
e6fce5b9 RO |
1935 | { |
1936 | char b[IFNAMSIZ+5]; | |
d6182223 | 1937 | int i; |
e6fce5b9 | 1938 | |
63adc6fb SH |
1939 | for (i = 0; ifname[i] != '@'; i++) { |
1940 | if (i == IFNAMSIZ) | |
e6fce5b9 RO |
1941 | break; |
1942 | ||
1943 | b[i] = ifname[i]; | |
1944 | } | |
1945 | b[i] = 0; | |
1946 | ||
1947 | return dev_get_by_name(&init_net, b); | |
1948 | } | |
1949 | ||
1950 | ||
1da177e4 LT |
1951 | /* Associate pktgen_dev with a device. */ |
1952 | ||
39df232f | 1953 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 1954 | { |
1da177e4 | 1955 | struct net_device *odev; |
39df232f | 1956 | int err; |
1da177e4 LT |
1957 | |
1958 | /* Clean old setups */ | |
1da177e4 LT |
1959 | if (pkt_dev->odev) { |
1960 | dev_put(pkt_dev->odev); | |
222f1806 LC |
1961 | pkt_dev->odev = NULL; |
1962 | } | |
1da177e4 | 1963 | |
e6fce5b9 | 1964 | odev = pktgen_dev_get_by_name(pkt_dev, ifname); |
1da177e4 | 1965 | if (!odev) { |
f9467eae | 1966 | pr_err("no such netdevice: \"%s\"\n", ifname); |
39df232f | 1967 | return -ENODEV; |
1da177e4 | 1968 | } |
39df232f | 1969 | |
1da177e4 | 1970 | if (odev->type != ARPHRD_ETHER) { |
f9467eae | 1971 | pr_err("not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
1972 | err = -EINVAL; |
1973 | } else if (!netif_running(odev)) { | |
f9467eae | 1974 | pr_err("device is down: \"%s\"\n", ifname); |
39df232f SH |
1975 | err = -ENETDOWN; |
1976 | } else { | |
1977 | pkt_dev->odev = odev; | |
1978 | return 0; | |
1da177e4 | 1979 | } |
1da177e4 | 1980 | |
1da177e4 | 1981 | dev_put(odev); |
39df232f | 1982 | return err; |
1da177e4 LT |
1983 | } |
1984 | ||
1985 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
1986 | * structure to have the right information to create/send packets | |
1987 | */ | |
1988 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
1989 | { | |
64c00d81 AG |
1990 | int ntxq; |
1991 | ||
222f1806 | 1992 | if (!pkt_dev->odev) { |
f9467eae | 1993 | pr_err("ERROR: pkt_dev->odev == NULL in setup_inject\n"); |
222f1806 LC |
1994 | sprintf(pkt_dev->result, |
1995 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
1996 | return; | |
1997 | } | |
1998 | ||
64c00d81 AG |
1999 | /* make sure that we don't pick a non-existing transmit queue */ |
2000 | ntxq = pkt_dev->odev->real_num_tx_queues; | |
bfdbc0ac | 2001 | |
64c00d81 | 2002 | if (ntxq <= pkt_dev->queue_map_min) { |
f9467eae JP |
2003 | pr_warning("WARNING: Requested queue_map_min (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n", |
2004 | pkt_dev->queue_map_min, (ntxq ?: 1) - 1, ntxq, | |
2005 | pkt_dev->odevname); | |
26e29eed | 2006 | pkt_dev->queue_map_min = (ntxq ?: 1) - 1; |
64c00d81 | 2007 | } |
88271660 | 2008 | if (pkt_dev->queue_map_max >= ntxq) { |
f9467eae JP |
2009 | pr_warning("WARNING: Requested queue_map_max (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n", |
2010 | pkt_dev->queue_map_max, (ntxq ?: 1) - 1, ntxq, | |
2011 | pkt_dev->odevname); | |
26e29eed | 2012 | pkt_dev->queue_map_max = (ntxq ?: 1) - 1; |
64c00d81 AG |
2013 | } |
2014 | ||
222f1806 | 2015 | /* Default to the interface's mac if not explicitly set. */ |
1da177e4 | 2016 | |
f404e9a6 | 2017 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 2018 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 2019 | |
222f1806 | 2020 | /* Set up Dest MAC */ |
f404e9a6 | 2021 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 2022 | |
222f1806 | 2023 | if (pkt_dev->flags & F_IPV6) { |
4c139b8c AW |
2024 | int i, set = 0, err = 1; |
2025 | struct inet6_dev *idev; | |
2026 | ||
68bf9f0b AW |
2027 | if (pkt_dev->min_pkt_size == 0) { |
2028 | pkt_dev->min_pkt_size = 14 + sizeof(struct ipv6hdr) | |
2029 | + sizeof(struct udphdr) | |
2030 | + sizeof(struct pktgen_hdr) | |
2031 | + pkt_dev->pkt_overhead; | |
2032 | } | |
2033 | ||
222f1806 LC |
2034 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
2035 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
2036 | set = 1; |
2037 | break; | |
2038 | } | |
2039 | ||
222f1806 LC |
2040 | if (!set) { |
2041 | ||
1da177e4 LT |
2042 | /* |
2043 | * Use linklevel address if unconfigured. | |
2044 | * | |
2045 | * use ipv6_get_lladdr if/when it's get exported | |
2046 | */ | |
2047 | ||
8814c4b5 | 2048 | rcu_read_lock(); |
63adc6fb SH |
2049 | idev = __in6_dev_get(pkt_dev->odev); |
2050 | if (idev) { | |
1da177e4 LT |
2051 | struct inet6_ifaddr *ifp; |
2052 | ||
2053 | read_lock_bh(&idev->lock); | |
4c139b8c AW |
2054 | list_for_each_entry(ifp, &idev->addr_list, if_list) { |
2055 | if ((ifp->scope & IFA_LINK) && | |
f64f9e71 | 2056 | !(ifp->flags & IFA_F_TENTATIVE)) { |
4e3fd7a0 | 2057 | pkt_dev->cur_in6_saddr = ifp->addr; |
1da177e4 LT |
2058 | err = 0; |
2059 | break; | |
2060 | } | |
2061 | } | |
2062 | read_unlock_bh(&idev->lock); | |
2063 | } | |
8814c4b5 | 2064 | rcu_read_unlock(); |
222f1806 | 2065 | if (err) |
f9467eae | 2066 | pr_err("ERROR: IPv6 link address not available\n"); |
1da177e4 | 2067 | } |
222f1806 | 2068 | } else { |
68bf9f0b AW |
2069 | if (pkt_dev->min_pkt_size == 0) { |
2070 | pkt_dev->min_pkt_size = 14 + sizeof(struct iphdr) | |
2071 | + sizeof(struct udphdr) | |
2072 | + sizeof(struct pktgen_hdr) | |
2073 | + pkt_dev->pkt_overhead; | |
2074 | } | |
2075 | ||
1da177e4 LT |
2076 | pkt_dev->saddr_min = 0; |
2077 | pkt_dev->saddr_max = 0; | |
2078 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2079 | |
2080 | struct in_device *in_dev; | |
1da177e4 LT |
2081 | |
2082 | rcu_read_lock(); | |
e5ed6399 | 2083 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2084 | if (in_dev) { |
2085 | if (in_dev->ifa_list) { | |
222f1806 LC |
2086 | pkt_dev->saddr_min = |
2087 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2088 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2089 | } | |
1da177e4 LT |
2090 | } |
2091 | rcu_read_unlock(); | |
222f1806 | 2092 | } else { |
1da177e4 LT |
2093 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2094 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2095 | } | |
2096 | ||
2097 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2098 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2099 | } | |
222f1806 | 2100 | /* Initialize current values. */ |
68bf9f0b AW |
2101 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; |
2102 | if (pkt_dev->min_pkt_size > pkt_dev->max_pkt_size) | |
2103 | pkt_dev->max_pkt_size = pkt_dev->min_pkt_size; | |
2104 | ||
222f1806 LC |
2105 | pkt_dev->cur_dst_mac_offset = 0; |
2106 | pkt_dev->cur_src_mac_offset = 0; | |
2107 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2108 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2109 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2110 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2111 | pkt_dev->nflows = 0; |
2112 | } | |
2113 | ||
fd29cf72 SH |
2114 | |
2115 | static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until) | |
2116 | { | |
ef87979c | 2117 | ktime_t start_time, end_time; |
417bc4b8 | 2118 | s64 remaining; |
2bc481cf SH |
2119 | struct hrtimer_sleeper t; |
2120 | ||
2121 | hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); | |
2122 | hrtimer_set_expires(&t.timer, spin_until); | |
2123 | ||
43d28b65 | 2124 | remaining = ktime_to_ns(hrtimer_expires_remaining(&t.timer)); |
417bc4b8 ED |
2125 | if (remaining <= 0) { |
2126 | pkt_dev->next_tx = ktime_add_ns(spin_until, pkt_dev->delay); | |
2bc481cf | 2127 | return; |
417bc4b8 | 2128 | } |
2bc481cf | 2129 | |
398f382c | 2130 | start_time = ktime_get(); |
33136d12 ED |
2131 | if (remaining < 100000) { |
2132 | /* for small delays (<100us), just loop until limit is reached */ | |
2133 | do { | |
398f382c DB |
2134 | end_time = ktime_get(); |
2135 | } while (ktime_compare(end_time, spin_until) < 0); | |
33136d12 | 2136 | } else { |
2bc481cf SH |
2137 | /* see do_nanosleep */ |
2138 | hrtimer_init_sleeper(&t, current); | |
2139 | do { | |
2140 | set_current_state(TASK_INTERRUPTIBLE); | |
2141 | hrtimer_start_expires(&t.timer, HRTIMER_MODE_ABS); | |
2142 | if (!hrtimer_active(&t.timer)) | |
2143 | t.task = NULL; | |
2144 | ||
2145 | if (likely(t.task)) | |
1da177e4 | 2146 | schedule(); |
1da177e4 | 2147 | |
2bc481cf SH |
2148 | hrtimer_cancel(&t.timer); |
2149 | } while (t.task && pkt_dev->running && !signal_pending(current)); | |
2150 | __set_current_state(TASK_RUNNING); | |
398f382c | 2151 | end_time = ktime_get(); |
1da177e4 | 2152 | } |
ef87979c SH |
2153 | |
2154 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(end_time, start_time)); | |
07a0f0f0 | 2155 | pkt_dev->next_tx = ktime_add_ns(spin_until, pkt_dev->delay); |
1da177e4 LT |
2156 | } |
2157 | ||
16dab72f JHS |
2158 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2159 | { | |
a553e4a6 | 2160 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2161 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2162 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2163 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2164 | } | |
2165 | ||
648fda74 | 2166 | static inline int f_seen(const struct pktgen_dev *pkt_dev, int flow) |
007a531b | 2167 | { |
648fda74 | 2168 | return !!(pkt_dev->flows[flow].flags & F_INIT); |
007a531b JHS |
2169 | } |
2170 | ||
2171 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2172 | { | |
2173 | int flow = pkt_dev->curfl; | |
2174 | ||
2175 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2176 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2177 | /* reset time */ | |
2178 | pkt_dev->flows[flow].count = 0; | |
1211a645 | 2179 | pkt_dev->flows[flow].flags = 0; |
007a531b JHS |
2180 | pkt_dev->curfl += 1; |
2181 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2182 | pkt_dev->curfl = 0; /*reset */ | |
2183 | } | |
2184 | } else { | |
2185 | flow = random32() % pkt_dev->cflows; | |
1211a645 | 2186 | pkt_dev->curfl = flow; |
007a531b | 2187 | |
1211a645 | 2188 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) { |
007a531b | 2189 | pkt_dev->flows[flow].count = 0; |
1211a645 RO |
2190 | pkt_dev->flows[flow].flags = 0; |
2191 | } | |
007a531b JHS |
2192 | } |
2193 | ||
2194 | return pkt_dev->curfl; | |
2195 | } | |
2196 | ||
a553e4a6 JHS |
2197 | |
2198 | #ifdef CONFIG_XFRM | |
2199 | /* If there was already an IPSEC SA, we keep it as is, else | |
2200 | * we go look for it ... | |
2201 | */ | |
bd55775c | 2202 | #define DUMMY_MARK 0 |
fea1ab0f | 2203 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2204 | { |
2205 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2206 | if (!x) { | |
2207 | /*slow path: we dont already have xfrm_state*/ | |
bd55775c | 2208 | x = xfrm_stateonly_find(&init_net, DUMMY_MARK, |
5447c5e4 | 2209 | (xfrm_address_t *)&pkt_dev->cur_daddr, |
a553e4a6 JHS |
2210 | (xfrm_address_t *)&pkt_dev->cur_saddr, |
2211 | AF_INET, | |
2212 | pkt_dev->ipsmode, | |
2213 | pkt_dev->ipsproto, 0); | |
2214 | if (x) { | |
2215 | pkt_dev->flows[flow].x = x; | |
2216 | set_pkt_overhead(pkt_dev); | |
63adc6fb | 2217 | pkt_dev->pkt_overhead += x->props.header_len; |
a553e4a6 JHS |
2218 | } |
2219 | ||
2220 | } | |
2221 | } | |
2222 | #endif | |
fd2ea0a7 DM |
2223 | static void set_cur_queue_map(struct pktgen_dev *pkt_dev) |
2224 | { | |
e6fce5b9 RO |
2225 | |
2226 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) | |
2227 | pkt_dev->cur_queue_map = smp_processor_id(); | |
2228 | ||
896a7cf8 | 2229 | else if (pkt_dev->queue_map_min <= pkt_dev->queue_map_max) { |
fd2ea0a7 DM |
2230 | __u16 t; |
2231 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2232 | t = random32() % | |
2233 | (pkt_dev->queue_map_max - | |
2234 | pkt_dev->queue_map_min + 1) | |
2235 | + pkt_dev->queue_map_min; | |
2236 | } else { | |
2237 | t = pkt_dev->cur_queue_map + 1; | |
2238 | if (t > pkt_dev->queue_map_max) | |
2239 | t = pkt_dev->queue_map_min; | |
2240 | } | |
2241 | pkt_dev->cur_queue_map = t; | |
2242 | } | |
bfdbc0ac | 2243 | pkt_dev->cur_queue_map = pkt_dev->cur_queue_map % pkt_dev->odev->real_num_tx_queues; |
fd2ea0a7 DM |
2244 | } |
2245 | ||
1da177e4 LT |
2246 | /* Increment/randomize headers according to flags and current values |
2247 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2248 | */ | |
222f1806 LC |
2249 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2250 | { | |
2251 | __u32 imn; | |
2252 | __u32 imx; | |
2253 | int flow = 0; | |
1da177e4 | 2254 | |
007a531b JHS |
2255 | if (pkt_dev->cflows) |
2256 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2257 | |
2258 | /* Deal with source MAC */ | |
222f1806 LC |
2259 | if (pkt_dev->src_mac_count > 1) { |
2260 | __u32 mc; | |
2261 | __u32 tmp; | |
2262 | ||
2263 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2264 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2265 | else { |
2266 | mc = pkt_dev->cur_src_mac_offset++; | |
ff2a79a5 | 2267 | if (pkt_dev->cur_src_mac_offset >= |
222f1806 LC |
2268 | pkt_dev->src_mac_count) |
2269 | pkt_dev->cur_src_mac_offset = 0; | |
2270 | } | |
2271 | ||
2272 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2273 | pkt_dev->hh[11] = tmp; | |
2274 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2275 | pkt_dev->hh[10] = tmp; | |
2276 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2277 | pkt_dev->hh[9] = tmp; | |
2278 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2279 | pkt_dev->hh[8] = tmp; | |
2280 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2281 | pkt_dev->hh[7] = tmp; | |
2282 | } | |
2283 | ||
2284 | /* Deal with Destination MAC */ | |
2285 | if (pkt_dev->dst_mac_count > 1) { | |
2286 | __u32 mc; | |
2287 | __u32 tmp; | |
2288 | ||
2289 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2290 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2291 | |
2292 | else { | |
2293 | mc = pkt_dev->cur_dst_mac_offset++; | |
ff2a79a5 | 2294 | if (pkt_dev->cur_dst_mac_offset >= |
222f1806 LC |
2295 | pkt_dev->dst_mac_count) { |
2296 | pkt_dev->cur_dst_mac_offset = 0; | |
2297 | } | |
2298 | } | |
2299 | ||
2300 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2301 | pkt_dev->hh[5] = tmp; | |
2302 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2303 | pkt_dev->hh[4] = tmp; | |
2304 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2305 | pkt_dev->hh[3] = tmp; | |
2306 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2307 | pkt_dev->hh[2] = tmp; | |
2308 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2309 | pkt_dev->hh[1] = tmp; | |
2310 | } | |
2311 | ||
ca6549af | 2312 | if (pkt_dev->flags & F_MPLS_RND) { |
95c96174 | 2313 | unsigned int i; |
e71a4783 | 2314 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2315 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2316 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2317 | ((__force __be32)random32() & |
ca6549af SW |
2318 | htonl(0x000fffff)); |
2319 | } | |
2320 | ||
34954ddc | 2321 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2322 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2323 | } |
2324 | ||
2325 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2326 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2327 | } |
2328 | ||
222f1806 LC |
2329 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2330 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2331 | pkt_dev->cur_udp_src = random32() % |
2332 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2333 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2334 | |
2335 | else { | |
1da177e4 LT |
2336 | pkt_dev->cur_udp_src++; |
2337 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2338 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2339 | } |
2340 | } | |
2341 | ||
2342 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2343 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2344 | pkt_dev->cur_udp_dst = random32() % |
2345 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2346 | + pkt_dev->udp_dst_min; | |
222f1806 | 2347 | } else { |
1da177e4 | 2348 | pkt_dev->cur_udp_dst++; |
222f1806 | 2349 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2350 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2351 | } |
2352 | } | |
1da177e4 LT |
2353 | |
2354 | if (!(pkt_dev->flags & F_IPV6)) { | |
2355 | ||
63adc6fb SH |
2356 | imn = ntohl(pkt_dev->saddr_min); |
2357 | imx = ntohl(pkt_dev->saddr_max); | |
2358 | if (imn < imx) { | |
1da177e4 | 2359 | __u32 t; |
222f1806 | 2360 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2361 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2362 | else { |
2363 | t = ntohl(pkt_dev->cur_saddr); | |
2364 | t++; | |
63adc6fb | 2365 | if (t > imx) |
1da177e4 | 2366 | t = imn; |
63adc6fb | 2367 | |
1da177e4 LT |
2368 | } |
2369 | pkt_dev->cur_saddr = htonl(t); | |
2370 | } | |
222f1806 | 2371 | |
007a531b | 2372 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2373 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2374 | } else { | |
252e3346 AV |
2375 | imn = ntohl(pkt_dev->daddr_min); |
2376 | imx = ntohl(pkt_dev->daddr_max); | |
2377 | if (imn < imx) { | |
1da177e4 | 2378 | __u32 t; |
252e3346 | 2379 | __be32 s; |
1da177e4 LT |
2380 | if (pkt_dev->flags & F_IPDST_RND) { |
2381 | ||
5fa6fc76 | 2382 | t = random32() % (imx - imn) + imn; |
252e3346 | 2383 | s = htonl(t); |
1da177e4 | 2384 | |
21cf2253 JP |
2385 | while (ipv4_is_loopback(s) || |
2386 | ipv4_is_multicast(s) || | |
1e637c74 | 2387 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2388 | ipv4_is_zeronet(s) || |
2389 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2390 | t = random32() % (imx - imn) + imn; |
252e3346 | 2391 | s = htonl(t); |
1da177e4 | 2392 | } |
252e3346 AV |
2393 | pkt_dev->cur_daddr = s; |
2394 | } else { | |
1da177e4 LT |
2395 | t = ntohl(pkt_dev->cur_daddr); |
2396 | t++; | |
2397 | if (t > imx) { | |
2398 | t = imn; | |
2399 | } | |
2400 | pkt_dev->cur_daddr = htonl(t); | |
2401 | } | |
2402 | } | |
222f1806 | 2403 | if (pkt_dev->cflows) { |
007a531b | 2404 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2405 | pkt_dev->flows[flow].cur_daddr = |
2406 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2407 | #ifdef CONFIG_XFRM |
2408 | if (pkt_dev->flags & F_IPSEC_ON) | |
2409 | get_ipsec_sa(pkt_dev, flow); | |
2410 | #endif | |
1da177e4 LT |
2411 | pkt_dev->nflows++; |
2412 | } | |
2413 | } | |
222f1806 LC |
2414 | } else { /* IPV6 * */ |
2415 | ||
06e30411 | 2416 | if (!ipv6_addr_any(&pkt_dev->min_in6_daddr)) { |
1da177e4 LT |
2417 | int i; |
2418 | ||
2419 | /* Only random destinations yet */ | |
2420 | ||
222f1806 | 2421 | for (i = 0; i < 4; i++) { |
1da177e4 | 2422 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2423 | (((__force __be32)random32() | |
222f1806 LC |
2424 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2425 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2426 | } |
222f1806 | 2427 | } |
1da177e4 LT |
2428 | } |
2429 | ||
222f1806 LC |
2430 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2431 | __u32 t; | |
2432 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2433 | t = random32() % |
2434 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2435 | + pkt_dev->min_pkt_size; | |
222f1806 | 2436 | } else { |
1da177e4 | 2437 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2438 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2439 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2440 | } |
2441 | pkt_dev->cur_pkt_size = t; | |
2442 | } | |
1da177e4 | 2443 | |
fd2ea0a7 | 2444 | set_cur_queue_map(pkt_dev); |
45b270f8 | 2445 | |
1da177e4 LT |
2446 | pkt_dev->flows[flow].count++; |
2447 | } | |
2448 | ||
a553e4a6 JHS |
2449 | |
2450 | #ifdef CONFIG_XFRM | |
2451 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2452 | { | |
2453 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2454 | int err = 0; | |
a553e4a6 JHS |
2455 | |
2456 | if (!x) | |
2457 | return 0; | |
2458 | /* XXX: we dont support tunnel mode for now until | |
2459 | * we resolve the dst issue */ | |
2460 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2461 | return 0; | |
2462 | ||
2463 | spin_lock(&x->lock); | |
a553e4a6 | 2464 | |
13996378 | 2465 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2466 | if (err) |
2467 | goto error; | |
2468 | err = x->type->output(x, skb); | |
2469 | if (err) | |
2470 | goto error; | |
2471 | ||
63adc6fb | 2472 | x->curlft.bytes += skb->len; |
a553e4a6 | 2473 | x->curlft.packets++; |
a553e4a6 JHS |
2474 | error: |
2475 | spin_unlock(&x->lock); | |
2476 | return err; | |
2477 | } | |
2478 | ||
475ac1e4 | 2479 | static void free_SAs(struct pktgen_dev *pkt_dev) |
a553e4a6 JHS |
2480 | { |
2481 | if (pkt_dev->cflows) { | |
2482 | /* let go of the SAs if we have them */ | |
d6182223 PG |
2483 | int i; |
2484 | for (i = 0; i < pkt_dev->cflows; i++) { | |
a553e4a6 JHS |
2485 | struct xfrm_state *x = pkt_dev->flows[i].x; |
2486 | if (x) { | |
2487 | xfrm_state_put(x); | |
2488 | pkt_dev->flows[i].x = NULL; | |
2489 | } | |
2490 | } | |
2491 | } | |
2492 | } | |
2493 | ||
475ac1e4 | 2494 | static int process_ipsec(struct pktgen_dev *pkt_dev, |
a553e4a6 JHS |
2495 | struct sk_buff *skb, __be16 protocol) |
2496 | { | |
2497 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2498 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2499 | int nhead = 0; | |
2500 | if (x) { | |
2501 | int ret; | |
2502 | __u8 *eth; | |
2503 | nhead = x->props.header_len - skb_headroom(skb); | |
63adc6fb | 2504 | if (nhead > 0) { |
a553e4a6 JHS |
2505 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); |
2506 | if (ret < 0) { | |
f9467eae JP |
2507 | pr_err("Error expanding ipsec packet %d\n", |
2508 | ret); | |
b4bb4ac8 | 2509 | goto err; |
a553e4a6 JHS |
2510 | } |
2511 | } | |
2512 | ||
2513 | /* ipsec is not expecting ll header */ | |
2514 | skb_pull(skb, ETH_HLEN); | |
2515 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2516 | if (ret) { | |
f9467eae | 2517 | pr_err("Error creating ipsec packet %d\n", ret); |
b4bb4ac8 | 2518 | goto err; |
a553e4a6 JHS |
2519 | } |
2520 | /* restore ll */ | |
2521 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2522 | memcpy(eth, pkt_dev->hh, 12); | |
63adc6fb | 2523 | *(u16 *) ð[12] = protocol; |
a553e4a6 JHS |
2524 | } |
2525 | } | |
2526 | return 1; | |
b4bb4ac8 IJ |
2527 | err: |
2528 | kfree_skb(skb); | |
2529 | return 0; | |
a553e4a6 JHS |
2530 | } |
2531 | #endif | |
2532 | ||
ca6549af SW |
2533 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2534 | { | |
95c96174 | 2535 | unsigned int i; |
63adc6fb | 2536 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af | 2537 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
63adc6fb | 2538 | |
ca6549af SW |
2539 | mpls--; |
2540 | *mpls |= MPLS_STACK_BOTTOM; | |
2541 | } | |
2542 | ||
0f37c605 AV |
2543 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2544 | unsigned int prio) | |
2545 | { | |
2546 | return htons(id | (cfi << 12) | (prio << 13)); | |
2547 | } | |
2548 | ||
26ad7879 ED |
2549 | static void pktgen_finalize_skb(struct pktgen_dev *pkt_dev, struct sk_buff *skb, |
2550 | int datalen) | |
2551 | { | |
2552 | struct timeval timestamp; | |
2553 | struct pktgen_hdr *pgh; | |
2554 | ||
2555 | pgh = (struct pktgen_hdr *)skb_put(skb, sizeof(*pgh)); | |
2556 | datalen -= sizeof(*pgh); | |
2557 | ||
2558 | if (pkt_dev->nfrags <= 0) { | |
05aebe2e | 2559 | memset(skb_put(skb, datalen), 0, datalen); |
26ad7879 ED |
2560 | } else { |
2561 | int frags = pkt_dev->nfrags; | |
2562 | int i, len; | |
7d36a991 | 2563 | int frag_len; |
26ad7879 ED |
2564 | |
2565 | ||
2566 | if (frags > MAX_SKB_FRAGS) | |
2567 | frags = MAX_SKB_FRAGS; | |
2568 | len = datalen - frags * PAGE_SIZE; | |
2569 | if (len > 0) { | |
2570 | memset(skb_put(skb, len), 0, len); | |
2571 | datalen = frags * PAGE_SIZE; | |
2572 | } | |
2573 | ||
2574 | i = 0; | |
7d36a991 | 2575 | frag_len = (datalen/frags) < PAGE_SIZE ? |
2576 | (datalen/frags) : PAGE_SIZE; | |
26ad7879 ED |
2577 | while (datalen > 0) { |
2578 | if (unlikely(!pkt_dev->page)) { | |
2579 | int node = numa_node_id(); | |
2580 | ||
2581 | if (pkt_dev->node >= 0 && (pkt_dev->flags & F_NODE)) | |
2582 | node = pkt_dev->node; | |
2583 | pkt_dev->page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0); | |
2584 | if (!pkt_dev->page) | |
2585 | break; | |
2586 | } | |
a0bec1cd | 2587 | get_page(pkt_dev->page); |
ea2ab693 | 2588 | skb_frag_set_page(skb, i, pkt_dev->page); |
26ad7879 | 2589 | skb_shinfo(skb)->frags[i].page_offset = 0; |
7d36a991 | 2590 | /*last fragment, fill rest of data*/ |
2591 | if (i == (frags - 1)) | |
9e903e08 ED |
2592 | skb_frag_size_set(&skb_shinfo(skb)->frags[i], |
2593 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE)); | |
7d36a991 | 2594 | else |
9e903e08 ED |
2595 | skb_frag_size_set(&skb_shinfo(skb)->frags[i], frag_len); |
2596 | datalen -= skb_frag_size(&skb_shinfo(skb)->frags[i]); | |
2597 | skb->len += skb_frag_size(&skb_shinfo(skb)->frags[i]); | |
2598 | skb->data_len += skb_frag_size(&skb_shinfo(skb)->frags[i]); | |
26ad7879 ED |
2599 | i++; |
2600 | skb_shinfo(skb)->nr_frags = i; | |
2601 | } | |
26ad7879 ED |
2602 | } |
2603 | ||
2604 | /* Stamp the time, and sequence number, | |
2605 | * convert them to network byte order | |
2606 | */ | |
2607 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2608 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2609 | ||
2610 | do_gettimeofday(×tamp); | |
2611 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2612 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2613 | } | |
2614 | ||
222f1806 LC |
2615 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2616 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2617 | { |
2618 | struct sk_buff *skb = NULL; | |
2619 | __u8 *eth; | |
2620 | struct udphdr *udph; | |
2621 | int datalen, iplen; | |
2622 | struct iphdr *iph; | |
d5f1ce9a | 2623 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2624 | __be32 *mpls; |
34954ddc FF |
2625 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2626 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2627 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2628 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2629 | u16 queue_map; |
ca6549af SW |
2630 | |
2631 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2632 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2633 | |
34954ddc | 2634 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2635 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2636 | |
64053bee RO |
2637 | /* Update any of the values, used when we're incrementing various |
2638 | * fields. | |
2639 | */ | |
2640 | mod_cur_headers(pkt_dev); | |
eb589063 | 2641 | queue_map = pkt_dev->cur_queue_map; |
64053bee | 2642 | |
7ac5459e | 2643 | datalen = (odev->hard_header_len + 16) & ~0xf; |
e99b99b4 RO |
2644 | |
2645 | if (pkt_dev->flags & F_NODE) { | |
2646 | int node; | |
2647 | ||
2648 | if (pkt_dev->node >= 0) | |
2649 | node = pkt_dev->node; | |
2650 | else | |
2651 | node = numa_node_id(); | |
2652 | ||
2653 | skb = __alloc_skb(NET_SKB_PAD + pkt_dev->cur_pkt_size + 64 | |
2654 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT, 0, node); | |
2655 | if (likely(skb)) { | |
2656 | skb_reserve(skb, NET_SKB_PAD); | |
2657 | skb->dev = odev; | |
2658 | } | |
2659 | } | |
2660 | else | |
2661 | skb = __netdev_alloc_skb(odev, | |
2662 | pkt_dev->cur_pkt_size + 64 | |
2663 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
2664 | ||
1da177e4 LT |
2665 | if (!skb) { |
2666 | sprintf(pkt_dev->result, "No memory"); | |
2667 | return NULL; | |
2668 | } | |
a8d764b9 | 2669 | prefetchw(skb->data); |
1da177e4 | 2670 | |
7ac5459e | 2671 | skb_reserve(skb, datalen); |
1da177e4 LT |
2672 | |
2673 | /* Reserve for ethernet and IP header */ | |
2674 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2675 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2676 | if (pkt_dev->nr_labels) | |
2677 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2678 | |
2679 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2680 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2681 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2682 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2683 | pkt_dev->svlan_cfi, | |
2684 | pkt_dev->svlan_p); | |
34954ddc | 2685 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2686 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2687 | } |
2688 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2689 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2690 | pkt_dev->vlan_cfi, | |
2691 | pkt_dev->vlan_p); | |
34954ddc | 2692 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2693 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2694 | } |
2695 | ||
27a884dc | 2696 | skb->network_header = skb->tail; |
b0e380b1 | 2697 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2698 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2699 | skb_set_queue_mapping(skb, queue_map); |
9e50e3ac JF |
2700 | skb->priority = pkt_dev->skb_priority; |
2701 | ||
ddc7b8e3 ACM |
2702 | iph = ip_hdr(skb); |
2703 | udph = udp_hdr(skb); | |
1da177e4 | 2704 | |
1da177e4 | 2705 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2706 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2707 | |
ca6549af SW |
2708 | /* Eth + IPh + UDPh + mpls */ |
2709 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2710 | pkt_dev->pkt_overhead; |
6af773e7 | 2711 | if (datalen < 0 || datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2712 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2713 | |
1da177e4 LT |
2714 | udph->source = htons(pkt_dev->cur_udp_src); |
2715 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2716 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2717 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2718 | |
2719 | iph->ihl = 5; | |
2720 | iph->version = 4; | |
2721 | iph->ttl = 32; | |
1ca7768c | 2722 | iph->tos = pkt_dev->tos; |
222f1806 | 2723 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2724 | iph->saddr = pkt_dev->cur_saddr; |
2725 | iph->daddr = pkt_dev->cur_daddr; | |
66ed1e5e ED |
2726 | iph->id = htons(pkt_dev->ip_id); |
2727 | pkt_dev->ip_id++; | |
1da177e4 LT |
2728 | iph->frag_off = 0; |
2729 | iplen = 20 + 8 + datalen; | |
2730 | iph->tot_len = htons(iplen); | |
2731 | iph->check = 0; | |
222f1806 | 2732 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2733 | skb->protocol = protocol; |
b0e380b1 | 2734 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2735 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2736 | skb->dev = odev; |
2737 | skb->pkt_type = PACKET_HOST; | |
26ad7879 | 2738 | pktgen_finalize_skb(pkt_dev, skb, datalen); |
1da177e4 | 2739 | |
a553e4a6 JHS |
2740 | #ifdef CONFIG_XFRM |
2741 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2742 | return NULL; | |
2743 | #endif | |
2744 | ||
1da177e4 LT |
2745 | return skb; |
2746 | } | |
2747 | ||
222f1806 LC |
2748 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2749 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2750 | { |
2751 | struct sk_buff *skb = NULL; | |
2752 | __u8 *eth; | |
2753 | struct udphdr *udph; | |
2754 | int datalen; | |
2755 | struct ipv6hdr *iph; | |
d5f1ce9a | 2756 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2757 | __be32 *mpls; |
34954ddc FF |
2758 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2759 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2760 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2761 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2762 | u16 queue_map; |
ca6549af SW |
2763 | |
2764 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2765 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2766 | |
34954ddc | 2767 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2768 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2769 | |
64053bee RO |
2770 | /* Update any of the values, used when we're incrementing various |
2771 | * fields. | |
2772 | */ | |
2773 | mod_cur_headers(pkt_dev); | |
eb589063 | 2774 | queue_map = pkt_dev->cur_queue_map; |
64053bee | 2775 | |
e470757d SH |
2776 | skb = __netdev_alloc_skb(odev, |
2777 | pkt_dev->cur_pkt_size + 64 | |
2778 | + 16 + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
2779 | if (!skb) { |
2780 | sprintf(pkt_dev->result, "No memory"); | |
2781 | return NULL; | |
2782 | } | |
a8d764b9 | 2783 | prefetchw(skb->data); |
1da177e4 LT |
2784 | |
2785 | skb_reserve(skb, 16); | |
2786 | ||
2787 | /* Reserve for ethernet and IP header */ | |
2788 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2789 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2790 | if (pkt_dev->nr_labels) | |
2791 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2792 | |
2793 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2794 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2795 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2796 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2797 | pkt_dev->svlan_cfi, | |
2798 | pkt_dev->svlan_p); | |
34954ddc | 2799 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2800 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2801 | } |
2802 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2803 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2804 | pkt_dev->vlan_cfi, | |
2805 | pkt_dev->vlan_p); | |
34954ddc | 2806 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2807 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
2808 | } |
2809 | ||
27a884dc | 2810 | skb->network_header = skb->tail; |
b0e380b1 | 2811 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 2812 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2813 | skb_set_queue_mapping(skb, queue_map); |
9e50e3ac | 2814 | skb->priority = pkt_dev->skb_priority; |
ddc7b8e3 ACM |
2815 | iph = ipv6_hdr(skb); |
2816 | udph = udp_hdr(skb); | |
1da177e4 | 2817 | |
1da177e4 | 2818 | memcpy(eth, pkt_dev->hh, 12); |
63adc6fb | 2819 | *(__be16 *) ð[12] = protocol; |
64053bee | 2820 | |
ca6549af SW |
2821 | /* Eth + IPh + UDPh + mpls */ |
2822 | datalen = pkt_dev->cur_pkt_size - 14 - | |
2823 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 2824 | pkt_dev->pkt_overhead; |
1da177e4 | 2825 | |
5aa8b572 | 2826 | if (datalen < 0 || datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 | 2827 | datalen = sizeof(struct pktgen_hdr); |
e87cc472 | 2828 | net_info_ratelimited("increased datalen to %d\n", datalen); |
1da177e4 LT |
2829 | } |
2830 | ||
2831 | udph->source = htons(pkt_dev->cur_udp_src); | |
2832 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2833 | udph->len = htons(datalen + sizeof(struct udphdr)); |
2834 | udph->check = 0; /* No checksum */ | |
1da177e4 | 2835 | |
d5f1ce9a | 2836 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 2837 | |
1ca7768c FF |
2838 | if (pkt_dev->traffic_class) { |
2839 | /* Version + traffic class + flow (0) */ | |
252e3346 | 2840 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
2841 | } |
2842 | ||
1da177e4 LT |
2843 | iph->hop_limit = 32; |
2844 | ||
2845 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
2846 | iph->nexthdr = IPPROTO_UDP; | |
2847 | ||
4e3fd7a0 AD |
2848 | iph->daddr = pkt_dev->cur_in6_daddr; |
2849 | iph->saddr = pkt_dev->cur_in6_saddr; | |
1da177e4 | 2850 | |
b0e380b1 | 2851 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2852 | pkt_dev->pkt_overhead); |
ca6549af | 2853 | skb->protocol = protocol; |
1da177e4 LT |
2854 | skb->dev = odev; |
2855 | skb->pkt_type = PACKET_HOST; | |
2856 | ||
26ad7879 | 2857 | pktgen_finalize_skb(pkt_dev, skb, datalen); |
222f1806 | 2858 | |
1da177e4 LT |
2859 | return skb; |
2860 | } | |
2861 | ||
475ac1e4 SH |
2862 | static struct sk_buff *fill_packet(struct net_device *odev, |
2863 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 2864 | { |
222f1806 | 2865 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
2866 | return fill_packet_ipv6(odev, pkt_dev); |
2867 | else | |
2868 | return fill_packet_ipv4(odev, pkt_dev); | |
2869 | } | |
2870 | ||
222f1806 | 2871 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 2872 | { |
222f1806 LC |
2873 | pkt_dev->seq_num = 1; |
2874 | pkt_dev->idle_acc = 0; | |
1da177e4 | 2875 | pkt_dev->sofar = 0; |
222f1806 LC |
2876 | pkt_dev->tx_bytes = 0; |
2877 | pkt_dev->errors = 0; | |
1da177e4 LT |
2878 | } |
2879 | ||
2880 | /* Set up structure for sending pkts, clear counters */ | |
2881 | ||
2882 | static void pktgen_run(struct pktgen_thread *t) | |
2883 | { | |
c26a8016 | 2884 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
2885 | int started = 0; |
2886 | ||
f9467eae | 2887 | func_enter(); |
1da177e4 LT |
2888 | |
2889 | if_lock(t); | |
c26a8016 | 2890 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
2891 | |
2892 | /* | |
2893 | * setup odev and create initial packet. | |
2894 | */ | |
2895 | pktgen_setup_inject(pkt_dev); | |
2896 | ||
222f1806 | 2897 | if (pkt_dev->odev) { |
1da177e4 | 2898 | pktgen_clear_counters(pkt_dev); |
222f1806 | 2899 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 | 2900 | pkt_dev->skb = NULL; |
398f382c | 2901 | pkt_dev->started_at = pkt_dev->next_tx = ktime_get(); |
fd29cf72 | 2902 | |
16dab72f | 2903 | set_pkt_overhead(pkt_dev); |
222f1806 | 2904 | |
1da177e4 LT |
2905 | strcpy(pkt_dev->result, "Starting"); |
2906 | started++; | |
222f1806 | 2907 | } else |
1da177e4 LT |
2908 | strcpy(pkt_dev->result, "Error starting"); |
2909 | } | |
2910 | if_unlock(t); | |
222f1806 LC |
2911 | if (started) |
2912 | t->control &= ~(T_STOP); | |
1da177e4 LT |
2913 | } |
2914 | ||
2915 | static void pktgen_stop_all_threads_ifs(void) | |
2916 | { | |
cdcdbe0b | 2917 | struct pktgen_thread *t; |
1da177e4 | 2918 | |
f9467eae | 2919 | func_enter(); |
1da177e4 | 2920 | |
6146e6a4 | 2921 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
2922 | |
2923 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 2924 | t->control |= T_STOP; |
cdcdbe0b | 2925 | |
6146e6a4 | 2926 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
2927 | } |
2928 | ||
648fda74 | 2929 | static int thread_is_running(const struct pktgen_thread *t) |
1da177e4 | 2930 | { |
648fda74 | 2931 | const struct pktgen_dev *pkt_dev; |
1da177e4 | 2932 | |
c26a8016 | 2933 | list_for_each_entry(pkt_dev, &t->if_list, list) |
648fda74 SH |
2934 | if (pkt_dev->running) |
2935 | return 1; | |
2936 | return 0; | |
1da177e4 LT |
2937 | } |
2938 | ||
222f1806 | 2939 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 2940 | { |
222f1806 | 2941 | if_lock(t); |
1da177e4 | 2942 | |
222f1806 | 2943 | while (thread_is_running(t)) { |
1da177e4 | 2944 | |
222f1806 | 2945 | if_unlock(t); |
1da177e4 | 2946 | |
222f1806 | 2947 | msleep_interruptible(100); |
1da177e4 | 2948 | |
222f1806 LC |
2949 | if (signal_pending(current)) |
2950 | goto signal; | |
2951 | if_lock(t); | |
2952 | } | |
2953 | if_unlock(t); | |
2954 | return 1; | |
2955 | signal: | |
2956 | return 0; | |
1da177e4 LT |
2957 | } |
2958 | ||
2959 | static int pktgen_wait_all_threads_run(void) | |
2960 | { | |
cdcdbe0b | 2961 | struct pktgen_thread *t; |
1da177e4 | 2962 | int sig = 1; |
222f1806 | 2963 | |
6146e6a4 | 2964 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
2965 | |
2966 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 2967 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
2968 | if (sig == 0) |
2969 | break; | |
1da177e4 | 2970 | } |
cdcdbe0b LC |
2971 | |
2972 | if (sig == 0) | |
2973 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 2974 | t->control |= (T_STOP); |
cdcdbe0b | 2975 | |
6146e6a4 | 2976 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
2977 | return sig; |
2978 | } | |
2979 | ||
2980 | static void pktgen_run_all_threads(void) | |
2981 | { | |
cdcdbe0b | 2982 | struct pktgen_thread *t; |
1da177e4 | 2983 | |
f9467eae | 2984 | func_enter(); |
1da177e4 | 2985 | |
6146e6a4 | 2986 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 2987 | |
cdcdbe0b | 2988 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 2989 | t->control |= (T_RUN); |
cdcdbe0b | 2990 | |
6146e6a4 | 2991 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 2992 | |
63adc6fb SH |
2993 | /* Propagate thread->control */ |
2994 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
222f1806 | 2995 | |
1da177e4 LT |
2996 | pktgen_wait_all_threads_run(); |
2997 | } | |
2998 | ||
eb37b41c JB |
2999 | static void pktgen_reset_all_threads(void) |
3000 | { | |
3001 | struct pktgen_thread *t; | |
3002 | ||
f9467eae | 3003 | func_enter(); |
eb37b41c JB |
3004 | |
3005 | mutex_lock(&pktgen_thread_lock); | |
3006 | ||
3007 | list_for_each_entry(t, &pktgen_threads, th_list) | |
3008 | t->control |= (T_REMDEVALL); | |
3009 | ||
3010 | mutex_unlock(&pktgen_thread_lock); | |
3011 | ||
63adc6fb SH |
3012 | /* Propagate thread->control */ |
3013 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
eb37b41c JB |
3014 | |
3015 | pktgen_wait_all_threads_run(); | |
3016 | } | |
3017 | ||
1da177e4 LT |
3018 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3019 | { | |
fd29cf72 | 3020 | __u64 bps, mbps, pps; |
222f1806 | 3021 | char *p = pkt_dev->result; |
fd29cf72 SH |
3022 | ktime_t elapsed = ktime_sub(pkt_dev->stopped_at, |
3023 | pkt_dev->started_at); | |
3024 | ktime_t idle = ns_to_ktime(pkt_dev->idle_acc); | |
3025 | ||
03a14ab1 | 3026 | p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n", |
fd29cf72 SH |
3027 | (unsigned long long)ktime_to_us(elapsed), |
3028 | (unsigned long long)ktime_to_us(ktime_sub(elapsed, idle)), | |
3029 | (unsigned long long)ktime_to_us(idle), | |
222f1806 LC |
3030 | (unsigned long long)pkt_dev->sofar, |
3031 | pkt_dev->cur_pkt_size, nr_frags); | |
3032 | ||
fd29cf72 SH |
3033 | pps = div64_u64(pkt_dev->sofar * NSEC_PER_SEC, |
3034 | ktime_to_ns(elapsed)); | |
222f1806 LC |
3035 | |
3036 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3037 | ||
3038 | mbps = bps; | |
3039 | do_div(mbps, 1000000); | |
3040 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3041 | (unsigned long long)pps, | |
3042 | (unsigned long long)mbps, | |
3043 | (unsigned long long)bps, | |
3044 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3045 | } |
1da177e4 LT |
3046 | |
3047 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
222f1806 | 3048 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3049 | { |
222f1806 | 3050 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3051 | |
222f1806 | 3052 | if (!pkt_dev->running) { |
f9467eae JP |
3053 | pr_warning("interface: %s is already stopped\n", |
3054 | pkt_dev->odevname); | |
222f1806 LC |
3055 | return -EINVAL; |
3056 | } | |
1da177e4 | 3057 | |
3bda06a3 SH |
3058 | kfree_skb(pkt_dev->skb); |
3059 | pkt_dev->skb = NULL; | |
398f382c | 3060 | pkt_dev->stopped_at = ktime_get(); |
222f1806 | 3061 | pkt_dev->running = 0; |
1da177e4 | 3062 | |
95ed63f7 | 3063 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3064 | |
222f1806 | 3065 | return 0; |
1da177e4 LT |
3066 | } |
3067 | ||
222f1806 | 3068 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3069 | { |
c26a8016 | 3070 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3071 | |
1da177e4 LT |
3072 | if_lock(t); |
3073 | ||
c26a8016 LC |
3074 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3075 | if (!pkt_dev->running) | |
222f1806 LC |
3076 | continue; |
3077 | if (best == NULL) | |
c26a8016 | 3078 | best = pkt_dev; |
398f382c | 3079 | else if (ktime_compare(pkt_dev->next_tx, best->next_tx) < 0) |
c26a8016 | 3080 | best = pkt_dev; |
1da177e4 LT |
3081 | } |
3082 | if_unlock(t); | |
222f1806 | 3083 | return best; |
1da177e4 LT |
3084 | } |
3085 | ||
222f1806 LC |
3086 | static void pktgen_stop(struct pktgen_thread *t) |
3087 | { | |
c26a8016 | 3088 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3089 | |
f9467eae | 3090 | func_enter(); |
1da177e4 | 3091 | |
222f1806 | 3092 | if_lock(t); |
1da177e4 | 3093 | |
c26a8016 LC |
3094 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3095 | pktgen_stop_device(pkt_dev); | |
95ed63f7 | 3096 | } |
1da177e4 | 3097 | |
222f1806 | 3098 | if_unlock(t); |
1da177e4 LT |
3099 | } |
3100 | ||
95ed63f7 AK |
3101 | /* |
3102 | * one of our devices needs to be removed - find it | |
3103 | * and remove it | |
3104 | */ | |
3105 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3106 | { | |
c26a8016 LC |
3107 | struct list_head *q, *n; |
3108 | struct pktgen_dev *cur; | |
95ed63f7 | 3109 | |
f9467eae | 3110 | func_enter(); |
95ed63f7 AK |
3111 | |
3112 | if_lock(t); | |
3113 | ||
c26a8016 LC |
3114 | list_for_each_safe(q, n, &t->if_list) { |
3115 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3116 | |
222f1806 LC |
3117 | if (!cur->removal_mark) |
3118 | continue; | |
95ed63f7 | 3119 | |
86dc1ad2 | 3120 | kfree_skb(cur->skb); |
95ed63f7 AK |
3121 | cur->skb = NULL; |
3122 | ||
3123 | pktgen_remove_device(t, cur); | |
3124 | ||
3125 | break; | |
3126 | } | |
3127 | ||
3128 | if_unlock(t); | |
3129 | } | |
3130 | ||
222f1806 | 3131 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3132 | { |
c26a8016 LC |
3133 | struct list_head *q, *n; |
3134 | struct pktgen_dev *cur; | |
222f1806 | 3135 | |
f9467eae JP |
3136 | func_enter(); |
3137 | ||
222f1806 | 3138 | /* Remove all devices, free mem */ |
95ed63f7 | 3139 | |
222f1806 | 3140 | if_lock(t); |
1da177e4 | 3141 | |
c26a8016 LC |
3142 | list_for_each_safe(q, n, &t->if_list) { |
3143 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3144 | |
86dc1ad2 | 3145 | kfree_skb(cur->skb); |
95ed63f7 AK |
3146 | cur->skb = NULL; |
3147 | ||
1da177e4 LT |
3148 | pktgen_remove_device(t, cur); |
3149 | } | |
3150 | ||
222f1806 | 3151 | if_unlock(t); |
1da177e4 LT |
3152 | } |
3153 | ||
222f1806 | 3154 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3155 | { |
222f1806 | 3156 | /* Remove from the thread list */ |
1da177e4 | 3157 | |
ee74baa7 | 3158 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3159 | |
1da177e4 LT |
3160 | } |
3161 | ||
ef87979c | 3162 | static void pktgen_resched(struct pktgen_dev *pkt_dev) |
3791decb | 3163 | { |
398f382c | 3164 | ktime_t idle_start = ktime_get(); |
ef87979c | 3165 | schedule(); |
398f382c | 3166 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_get(), idle_start)); |
ef87979c | 3167 | } |
3791decb | 3168 | |
ef87979c SH |
3169 | static void pktgen_wait_for_skb(struct pktgen_dev *pkt_dev) |
3170 | { | |
398f382c | 3171 | ktime_t idle_start = ktime_get(); |
3791decb | 3172 | |
ef87979c SH |
3173 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { |
3174 | if (signal_pending(current)) | |
3175 | break; | |
3176 | ||
3177 | if (need_resched()) | |
3178 | pktgen_resched(pkt_dev); | |
3179 | else | |
3180 | cpu_relax(); | |
3181 | } | |
398f382c | 3182 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_get(), idle_start)); |
3791decb SH |
3183 | } |
3184 | ||
475ac1e4 | 3185 | static void pktgen_xmit(struct pktgen_dev *pkt_dev) |
1da177e4 | 3186 | { |
00829823 | 3187 | struct net_device *odev = pkt_dev->odev; |
6fef4c0c | 3188 | netdev_tx_t (*xmit)(struct sk_buff *, struct net_device *) |
00829823 | 3189 | = odev->netdev_ops->ndo_start_xmit; |
fd2ea0a7 | 3190 | struct netdev_queue *txq; |
fd2ea0a7 | 3191 | u16 queue_map; |
1da177e4 LT |
3192 | int ret; |
3193 | ||
ef87979c SH |
3194 | /* If device is offline, then don't send */ |
3195 | if (unlikely(!netif_running(odev) || !netif_carrier_ok(odev))) { | |
3196 | pktgen_stop_device(pkt_dev); | |
3197 | return; | |
fd2ea0a7 DM |
3198 | } |
3199 | ||
ef87979c SH |
3200 | /* This is max DELAY, this has special meaning of |
3201 | * "never transmit" | |
3202 | */ | |
3203 | if (unlikely(pkt_dev->delay == ULLONG_MAX)) { | |
398f382c | 3204 | pkt_dev->next_tx = ktime_add_ns(ktime_get(), ULONG_MAX); |
3791decb | 3205 | return; |
1da177e4 | 3206 | } |
222f1806 | 3207 | |
ef87979c | 3208 | /* If no skb or clone count exhausted then get new one */ |
7d7bb1cf SH |
3209 | if (!pkt_dev->skb || (pkt_dev->last_ok && |
3210 | ++pkt_dev->clone_count >= pkt_dev->clone_skb)) { | |
3211 | /* build a new pkt */ | |
3212 | kfree_skb(pkt_dev->skb); | |
3213 | ||
3214 | pkt_dev->skb = fill_packet(odev, pkt_dev); | |
3215 | if (pkt_dev->skb == NULL) { | |
f9467eae | 3216 | pr_err("ERROR: couldn't allocate skb in fill_packet\n"); |
7d7bb1cf SH |
3217 | schedule(); |
3218 | pkt_dev->clone_count--; /* back out increment, OOM */ | |
3219 | return; | |
1da177e4 | 3220 | } |
baac8564 | 3221 | pkt_dev->last_pkt_size = pkt_dev->skb->len; |
7d7bb1cf SH |
3222 | pkt_dev->allocated_skbs++; |
3223 | pkt_dev->clone_count = 0; /* reset counter */ | |
1da177e4 | 3224 | } |
95ed63f7 | 3225 | |
ef87979c SH |
3226 | if (pkt_dev->delay && pkt_dev->last_ok) |
3227 | spin(pkt_dev, pkt_dev->next_tx); | |
3228 | ||
fd2ea0a7 DM |
3229 | queue_map = skb_get_queue_mapping(pkt_dev->skb); |
3230 | txq = netdev_get_tx_queue(odev, queue_map); | |
3231 | ||
3232 | __netif_tx_lock_bh(txq); | |
5b8db2f5 | 3233 | |
73466498 | 3234 | if (unlikely(netif_xmit_frozen_or_stopped(txq))) { |
ef87979c | 3235 | ret = NETDEV_TX_BUSY; |
0835acfe ED |
3236 | pkt_dev->last_ok = 0; |
3237 | goto unlock; | |
3238 | } | |
3239 | atomic_inc(&(pkt_dev->skb->users)); | |
3240 | ret = (*xmit)(pkt_dev->skb, odev); | |
ef87979c SH |
3241 | |
3242 | switch (ret) { | |
3243 | case NETDEV_TX_OK: | |
3244 | txq_trans_update(txq); | |
3245 | pkt_dev->last_ok = 1; | |
3246 | pkt_dev->sofar++; | |
3247 | pkt_dev->seq_num++; | |
baac8564 | 3248 | pkt_dev->tx_bytes += pkt_dev->last_pkt_size; |
ef87979c | 3249 | break; |
f466dba1 JF |
3250 | case NET_XMIT_DROP: |
3251 | case NET_XMIT_CN: | |
3252 | case NET_XMIT_POLICED: | |
3253 | /* skb has been consumed */ | |
3254 | pkt_dev->errors++; | |
3255 | break; | |
ef87979c | 3256 | default: /* Drivers are not supposed to return other values! */ |
e87cc472 JP |
3257 | net_info_ratelimited("%s xmit error: %d\n", |
3258 | pkt_dev->odevname, ret); | |
ef87979c SH |
3259 | pkt_dev->errors++; |
3260 | /* fallthru */ | |
3261 | case NETDEV_TX_LOCKED: | |
3262 | case NETDEV_TX_BUSY: | |
3263 | /* Retry it next time */ | |
3264 | atomic_dec(&(pkt_dev->skb->users)); | |
3265 | pkt_dev->last_ok = 0; | |
222f1806 | 3266 | } |
0835acfe | 3267 | unlock: |
fd2ea0a7 | 3268 | __netif_tx_unlock_bh(txq); |
222f1806 | 3269 | |
1da177e4 LT |
3270 | /* If pkt_dev->count is zero, then run forever */ |
3271 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
ef87979c | 3272 | pktgen_wait_for_skb(pkt_dev); |
222f1806 | 3273 | |
1da177e4 LT |
3274 | /* Done with this */ |
3275 | pktgen_stop_device(pkt_dev); | |
222f1806 | 3276 | } |
222f1806 | 3277 | } |
1da177e4 | 3278 | |
4ec93edb | 3279 | /* |
1da177e4 LT |
3280 | * Main loop of the thread goes here |
3281 | */ | |
3282 | ||
ee74baa7 | 3283 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3284 | { |
3285 | DEFINE_WAIT(wait); | |
ee74baa7 | 3286 | struct pktgen_thread *t = arg; |
222f1806 | 3287 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3288 | int cpu = t->cpu; |
1da177e4 | 3289 | |
ee74baa7 | 3290 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3291 | |
3292 | init_waitqueue_head(&t->queue); | |
d3ede327 | 3293 | complete(&t->start_done); |
1da177e4 | 3294 | |
f9467eae | 3295 | pr_debug("starting pktgen/%d: pid=%d\n", cpu, task_pid_nr(current)); |
1da177e4 | 3296 | |
ee74baa7 | 3297 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3298 | |
83144186 RW |
3299 | set_freezable(); |
3300 | ||
ee74baa7 DM |
3301 | while (!kthread_should_stop()) { |
3302 | pkt_dev = next_to_run(t); | |
1da177e4 | 3303 | |
ef87979c | 3304 | if (unlikely(!pkt_dev && t->control == 0)) { |
551eaff1 ED |
3305 | if (pktgen_exiting) |
3306 | break; | |
ef87979c SH |
3307 | wait_event_interruptible_timeout(t->queue, |
3308 | t->control != 0, | |
3309 | HZ/10); | |
1b3f720b | 3310 | try_to_freeze(); |
ef87979c | 3311 | continue; |
ee74baa7 | 3312 | } |
1da177e4 | 3313 | |
ee74baa7 | 3314 | __set_current_state(TASK_RUNNING); |
222f1806 | 3315 | |
ef87979c | 3316 | if (likely(pkt_dev)) { |
1da177e4 LT |
3317 | pktgen_xmit(pkt_dev); |
3318 | ||
ef87979c SH |
3319 | if (need_resched()) |
3320 | pktgen_resched(pkt_dev); | |
3321 | else | |
3322 | cpu_relax(); | |
3323 | } | |
3324 | ||
222f1806 | 3325 | if (t->control & T_STOP) { |
1da177e4 LT |
3326 | pktgen_stop(t); |
3327 | t->control &= ~(T_STOP); | |
3328 | } | |
3329 | ||
222f1806 | 3330 | if (t->control & T_RUN) { |
1da177e4 LT |
3331 | pktgen_run(t); |
3332 | t->control &= ~(T_RUN); | |
3333 | } | |
3334 | ||
222f1806 | 3335 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3336 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3337 | t->control &= ~(T_REMDEVALL); |
3338 | } | |
3339 | ||
222f1806 | 3340 | if (t->control & T_REMDEV) { |
95ed63f7 | 3341 | pktgen_rem_one_if(t); |
1da177e4 LT |
3342 | t->control &= ~(T_REMDEV); |
3343 | } | |
3344 | ||
09fe3ef4 AM |
3345 | try_to_freeze(); |
3346 | ||
ee74baa7 | 3347 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3348 | } |
1da177e4 | 3349 | |
f9467eae | 3350 | pr_debug("%s stopping all device\n", t->tsk->comm); |
222f1806 | 3351 | pktgen_stop(t); |
1da177e4 | 3352 | |
f9467eae | 3353 | pr_debug("%s removing all device\n", t->tsk->comm); |
222f1806 | 3354 | pktgen_rem_all_ifs(t); |
1da177e4 | 3355 | |
f9467eae | 3356 | pr_debug("%s removing thread\n", t->tsk->comm); |
222f1806 | 3357 | pktgen_rem_thread(t); |
cdcdbe0b | 3358 | |
551eaff1 ED |
3359 | /* Wait for kthread_stop */ |
3360 | while (!kthread_should_stop()) { | |
3361 | set_current_state(TASK_INTERRUPTIBLE); | |
3362 | schedule(); | |
3363 | } | |
3364 | __set_current_state(TASK_RUNNING); | |
3365 | ||
ee74baa7 | 3366 | return 0; |
1da177e4 LT |
3367 | } |
3368 | ||
222f1806 | 3369 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3e984840 | 3370 | const char *ifname, bool exact) |
1da177e4 | 3371 | { |
c26a8016 | 3372 | struct pktgen_dev *p, *pkt_dev = NULL; |
3e984840 | 3373 | size_t len = strlen(ifname); |
222f1806 | 3374 | |
3e984840 | 3375 | if_lock(t); |
c26a8016 | 3376 | list_for_each_entry(p, &t->if_list, list) |
3e984840 ED |
3377 | if (strncmp(p->odevname, ifname, len) == 0) { |
3378 | if (p->odevname[len]) { | |
3379 | if (exact || p->odevname[len] != '@') | |
3380 | continue; | |
3381 | } | |
c26a8016 | 3382 | pkt_dev = p; |
222f1806 LC |
3383 | break; |
3384 | } | |
222f1806 LC |
3385 | |
3386 | if_unlock(t); | |
f9467eae | 3387 | pr_debug("find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3388 | return pkt_dev; |
1da177e4 LT |
3389 | } |
3390 | ||
4ec93edb YH |
3391 | /* |
3392 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3393 | */ |
3394 | ||
222f1806 LC |
3395 | static int add_dev_to_thread(struct pktgen_thread *t, |
3396 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3397 | { |
3398 | int rv = 0; | |
222f1806 LC |
3399 | |
3400 | if_lock(t); | |
3401 | ||
3402 | if (pkt_dev->pg_thread) { | |
f9467eae | 3403 | pr_err("ERROR: already assigned to a thread\n"); |
222f1806 LC |
3404 | rv = -EBUSY; |
3405 | goto out; | |
3406 | } | |
c26a8016 LC |
3407 | |
3408 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3409 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3410 | pkt_dev->running = 0; |
3411 | ||
222f1806 LC |
3412 | out: |
3413 | if_unlock(t); | |
3414 | return rv; | |
1da177e4 LT |
3415 | } |
3416 | ||
3417 | /* Called under thread lock */ | |
3418 | ||
222f1806 | 3419 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3420 | { |
222f1806 | 3421 | struct pktgen_dev *pkt_dev; |
39df232f | 3422 | int err; |
3291b9db | 3423 | int node = cpu_to_node(t->cpu); |
222f1806 | 3424 | |
1da177e4 LT |
3425 | /* We don't allow a device to be on several threads */ |
3426 | ||
d50a6b56 SH |
3427 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3428 | if (pkt_dev) { | |
f9467eae | 3429 | pr_err("ERROR: interface already used\n"); |
222f1806 LC |
3430 | return -EBUSY; |
3431 | } | |
d50a6b56 | 3432 | |
3291b9db | 3433 | pkt_dev = kzalloc_node(sizeof(struct pktgen_dev), GFP_KERNEL, node); |
d50a6b56 SH |
3434 | if (!pkt_dev) |
3435 | return -ENOMEM; | |
3436 | ||
593f63b0 | 3437 | strcpy(pkt_dev->odevname, ifname); |
68d5ac2e | 3438 | pkt_dev->flows = vzalloc_node(MAX_CFLOWS * sizeof(struct flow_state), |
3291b9db | 3439 | node); |
d50a6b56 SH |
3440 | if (pkt_dev->flows == NULL) { |
3441 | kfree(pkt_dev); | |
3442 | return -ENOMEM; | |
3443 | } | |
d50a6b56 | 3444 | |
95ed63f7 | 3445 | pkt_dev->removal_mark = 0; |
d50a6b56 | 3446 | pkt_dev->nfrags = 0; |
fd29cf72 | 3447 | pkt_dev->delay = pg_delay_d; |
d50a6b56 SH |
3448 | pkt_dev->count = pg_count_d; |
3449 | pkt_dev->sofar = 0; | |
222f1806 | 3450 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3451 | pkt_dev->udp_src_max = 9; |
3452 | pkt_dev->udp_dst_min = 9; | |
3453 | pkt_dev->udp_dst_max = 9; | |
34954ddc FF |
3454 | pkt_dev->vlan_p = 0; |
3455 | pkt_dev->vlan_cfi = 0; | |
3456 | pkt_dev->vlan_id = 0xffff; | |
3457 | pkt_dev->svlan_p = 0; | |
3458 | pkt_dev->svlan_cfi = 0; | |
3459 | pkt_dev->svlan_id = 0xffff; | |
e99b99b4 | 3460 | pkt_dev->node = -1; |
34954ddc | 3461 | |
39df232f SH |
3462 | err = pktgen_setup_dev(pkt_dev, ifname); |
3463 | if (err) | |
3464 | goto out1; | |
d8873315 NH |
3465 | if (pkt_dev->odev->priv_flags & IFF_TX_SKB_SHARING) |
3466 | pkt_dev->clone_skb = pg_clone_skb_d; | |
d50a6b56 | 3467 | |
5efdccbc DL |
3468 | pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir, |
3469 | &pktgen_if_fops, pkt_dev); | |
39df232f | 3470 | if (!pkt_dev->entry) { |
f9467eae | 3471 | pr_err("cannot create %s/%s procfs entry\n", |
d50a6b56 | 3472 | PG_PROC_DIR, ifname); |
39df232f SH |
3473 | err = -EINVAL; |
3474 | goto out2; | |
d50a6b56 | 3475 | } |
a553e4a6 JHS |
3476 | #ifdef CONFIG_XFRM |
3477 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3478 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3479 | #endif | |
d50a6b56 SH |
3480 | |
3481 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3482 | out2: |
3483 | dev_put(pkt_dev->odev); | |
3484 | out1: | |
a553e4a6 JHS |
3485 | #ifdef CONFIG_XFRM |
3486 | free_SAs(pkt_dev); | |
3487 | #endif | |
1d0ebfe7 | 3488 | vfree(pkt_dev->flows); |
39df232f SH |
3489 | kfree(pkt_dev); |
3490 | return err; | |
1da177e4 LT |
3491 | } |
3492 | ||
ee74baa7 | 3493 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3494 | { |
cdcdbe0b | 3495 | struct pktgen_thread *t; |
d50a6b56 | 3496 | struct proc_dir_entry *pe; |
ee74baa7 | 3497 | struct task_struct *p; |
222f1806 | 3498 | |
3291b9db ED |
3499 | t = kzalloc_node(sizeof(struct pktgen_thread), GFP_KERNEL, |
3500 | cpu_to_node(cpu)); | |
222f1806 | 3501 | if (!t) { |
f9467eae | 3502 | pr_err("ERROR: out of memory, can't create new thread\n"); |
222f1806 LC |
3503 | return -ENOMEM; |
3504 | } | |
3505 | ||
222f1806 | 3506 | spin_lock_init(&t->if_lock); |
1da177e4 | 3507 | t->cpu = cpu; |
222f1806 | 3508 | |
ee74baa7 DM |
3509 | INIT_LIST_HEAD(&t->if_list); |
3510 | ||
3511 | list_add_tail(&t->th_list, &pktgen_threads); | |
d3ede327 | 3512 | init_completion(&t->start_done); |
ee74baa7 | 3513 | |
94dcf29a ED |
3514 | p = kthread_create_on_node(pktgen_thread_worker, |
3515 | t, | |
3516 | cpu_to_node(cpu), | |
3517 | "kpktgend_%d", cpu); | |
ee74baa7 | 3518 | if (IS_ERR(p)) { |
f9467eae | 3519 | pr_err("kernel_thread() failed for cpu %d\n", t->cpu); |
ee74baa7 DM |
3520 | list_del(&t->th_list); |
3521 | kfree(t); | |
3522 | return PTR_ERR(p); | |
3523 | } | |
3524 | kthread_bind(p, cpu); | |
3525 | t->tsk = p; | |
3526 | ||
5efdccbc DL |
3527 | pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir, |
3528 | &pktgen_thread_fops, t); | |
222f1806 | 3529 | if (!pe) { |
f9467eae | 3530 | pr_err("cannot create %s/%s procfs entry\n", |
ee74baa7 DM |
3531 | PG_PROC_DIR, t->tsk->comm); |
3532 | kthread_stop(p); | |
3533 | list_del(&t->th_list); | |
222f1806 LC |
3534 | kfree(t); |
3535 | return -EINVAL; | |
3536 | } | |
d50a6b56 | 3537 | |
ee74baa7 | 3538 | wake_up_process(p); |
d3ede327 | 3539 | wait_for_completion(&t->start_done); |
1da177e4 LT |
3540 | |
3541 | return 0; | |
3542 | } | |
3543 | ||
4ec93edb YH |
3544 | /* |
3545 | * Removes a device from the thread if_list. | |
1da177e4 | 3546 | */ |
222f1806 LC |
3547 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3548 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3549 | { |
c26a8016 LC |
3550 | struct list_head *q, *n; |
3551 | struct pktgen_dev *p; | |
1da177e4 | 3552 | |
c26a8016 LC |
3553 | list_for_each_safe(q, n, &t->if_list) { |
3554 | p = list_entry(q, struct pktgen_dev, list); | |
3555 | if (p == pkt_dev) | |
3556 | list_del(&p->list); | |
1da177e4 LT |
3557 | } |
3558 | } | |
3559 | ||
222f1806 LC |
3560 | static int pktgen_remove_device(struct pktgen_thread *t, |
3561 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3562 | { |
3563 | ||
f9467eae | 3564 | pr_debug("remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3565 | |
222f1806 | 3566 | if (pkt_dev->running) { |
f9467eae | 3567 | pr_warning("WARNING: trying to remove a running interface, stopping it now\n"); |
222f1806 LC |
3568 | pktgen_stop_device(pkt_dev); |
3569 | } | |
3570 | ||
3571 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3572 | |
3573 | if (pkt_dev->odev) { | |
3574 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3575 | pkt_dev->odev = NULL; |
3576 | } | |
3577 | ||
1da177e4 LT |
3578 | /* And update the thread if_list */ |
3579 | ||
3580 | _rem_dev_from_if_list(t, pkt_dev); | |
3581 | ||
39df232f SH |
3582 | if (pkt_dev->entry) |
3583 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3584 | |
a553e4a6 JHS |
3585 | #ifdef CONFIG_XFRM |
3586 | free_SAs(pkt_dev); | |
3587 | #endif | |
1d0ebfe7 | 3588 | vfree(pkt_dev->flows); |
26ad7879 ED |
3589 | if (pkt_dev->page) |
3590 | put_page(pkt_dev->page); | |
1da177e4 | 3591 | kfree(pkt_dev); |
222f1806 | 3592 | return 0; |
1da177e4 LT |
3593 | } |
3594 | ||
222f1806 | 3595 | static int __init pg_init(void) |
1da177e4 LT |
3596 | { |
3597 | int cpu; | |
d50a6b56 | 3598 | struct proc_dir_entry *pe; |
ce14f894 | 3599 | int ret = 0; |
1da177e4 | 3600 | |
f9467eae | 3601 | pr_info("%s", version); |
1da177e4 | 3602 | |
457c4cbc | 3603 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3604 | if (!pg_proc_dir) |
3605 | return -ENODEV; | |
1da177e4 | 3606 | |
25296d59 | 3607 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3608 | if (pe == NULL) { |
f9467eae | 3609 | pr_err("ERROR: cannot create %s procfs entry\n", PGCTRL); |
ce14f894 WC |
3610 | ret = -EINVAL; |
3611 | goto remove_dir; | |
222f1806 | 3612 | } |
1da177e4 | 3613 | |
1da177e4 | 3614 | register_netdevice_notifier(&pktgen_notifier_block); |
222f1806 | 3615 | |
670c02c2 | 3616 | for_each_online_cpu(cpu) { |
8024bb24 | 3617 | int err; |
1da177e4 | 3618 | |
ee74baa7 | 3619 | err = pktgen_create_thread(cpu); |
8024bb24 | 3620 | if (err) |
f9467eae JP |
3621 | pr_warning("WARNING: Cannot create thread for cpu %d (%d)\n", |
3622 | cpu, err); | |
222f1806 | 3623 | } |
8024bb24 LC |
3624 | |
3625 | if (list_empty(&pktgen_threads)) { | |
f9467eae | 3626 | pr_err("ERROR: Initialization failed for all threads\n"); |
ce14f894 WC |
3627 | ret = -ENODEV; |
3628 | goto unregister; | |
8024bb24 LC |
3629 | } |
3630 | ||
222f1806 | 3631 | return 0; |
ce14f894 WC |
3632 | |
3633 | unregister: | |
3634 | unregister_netdevice_notifier(&pktgen_notifier_block); | |
3635 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
3636 | remove_dir: | |
3637 | proc_net_remove(&init_net, PG_PROC_DIR); | |
3638 | return ret; | |
1da177e4 LT |
3639 | } |
3640 | ||
3641 | static void __exit pg_cleanup(void) | |
3642 | { | |
cdcdbe0b LC |
3643 | struct pktgen_thread *t; |
3644 | struct list_head *q, *n; | |
d4b11335 | 3645 | LIST_HEAD(list); |
1da177e4 | 3646 | |
222f1806 | 3647 | /* Stop all interfaces & threads */ |
551eaff1 | 3648 | pktgen_exiting = true; |
1da177e4 | 3649 | |
c57b5468 | 3650 | mutex_lock(&pktgen_thread_lock); |
d4b11335 | 3651 | list_splice_init(&pktgen_threads, &list); |
c57b5468 ED |
3652 | mutex_unlock(&pktgen_thread_lock); |
3653 | ||
3654 | list_for_each_safe(q, n, &list) { | |
cdcdbe0b | 3655 | t = list_entry(q, struct pktgen_thread, th_list); |
c57b5468 | 3656 | list_del(&t->th_list); |
ee74baa7 DM |
3657 | kthread_stop(t->tsk); |
3658 | kfree(t); | |
222f1806 | 3659 | } |
1da177e4 | 3660 | |
222f1806 | 3661 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3662 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3663 | ||
222f1806 | 3664 | /* Clean up proc file system */ |
d50a6b56 | 3665 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3666 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3667 | } |
3668 | ||
1da177e4 LT |
3669 | module_init(pg_init); |
3670 | module_exit(pg_cleanup); | |
3671 | ||
c3d2f52d | 3672 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se>"); |
1da177e4 LT |
3673 | MODULE_DESCRIPTION("Packet Generator tool"); |
3674 | MODULE_LICENSE("GPL"); | |
c3d2f52d | 3675 | MODULE_VERSION(VERSION); |
1da177e4 | 3676 | module_param(pg_count_d, int, 0); |
c3d2f52d | 3677 | MODULE_PARM_DESC(pg_count_d, "Default number of packets to inject"); |
1da177e4 | 3678 | module_param(pg_delay_d, int, 0); |
c3d2f52d | 3679 | MODULE_PARM_DESC(pg_delay_d, "Default delay between packets (nanoseconds)"); |
1da177e4 | 3680 | module_param(pg_clone_skb_d, int, 0); |
c3d2f52d | 3681 | MODULE_PARM_DESC(pg_clone_skb_d, "Default number of copies of the same packet"); |
1da177e4 | 3682 | module_param(debug, int, 0); |
c3d2f52d | 3683 | MODULE_PARM_DESC(debug, "Enable debugging of pktgen module"); |