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1da177e4 LT |
1 | /* |
2 | * Authors: | |
3 | * Copyright 2001, 2002 by Robert Olsson <robert.olsson@its.uu.se> | |
4 | * Uppsala University and | |
5 | * Swedish University of Agricultural Sciences | |
6 | * | |
7 | * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> | |
8 | * Ben Greear <greearb@candelatech.com> | |
96de0e25 | 9 | * Jens Låås <jens.laas@data.slu.se> |
1da177e4 LT |
10 | * |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | * | |
16 | * | |
17 | * A tool for loading the network with preconfigurated packets. | |
4ec93edb | 18 | * The tool is implemented as a linux module. Parameters are output |
1da177e4 LT |
19 | * device, delay (to hard_xmit), number of packets, and whether |
20 | * to use multiple SKBs or just the same one. | |
21 | * pktgen uses the installed interface's output routine. | |
22 | * | |
23 | * Additional hacking by: | |
24 | * | |
25 | * Jens.Laas@data.slu.se | |
26 | * Improved by ANK. 010120. | |
27 | * Improved by ANK even more. 010212. | |
28 | * MAC address typo fixed. 010417 --ro | |
29 | * Integrated. 020301 --DaveM | |
30 | * Added multiskb option 020301 --DaveM | |
31 | * Scaling of results. 020417--sigurdur@linpro.no | |
32 | * Significant re-work of the module: | |
33 | * * Convert to threaded model to more efficiently be able to transmit | |
34 | * and receive on multiple interfaces at once. | |
35 | * * Converted many counters to __u64 to allow longer runs. | |
36 | * * Allow configuration of ranges, like min/max IP address, MACs, | |
37 | * and UDP-ports, for both source and destination, and can | |
38 | * set to use a random distribution or sequentially walk the range. | |
39 | * * Can now change most values after starting. | |
40 | * * Place 12-byte packet in UDP payload with magic number, | |
41 | * sequence number, and timestamp. | |
42 | * * Add receiver code that detects dropped pkts, re-ordered pkts, and | |
43 | * latencies (with micro-second) precision. | |
44 | * * Add IOCTL interface to easily get counters & configuration. | |
45 | * --Ben Greear <greearb@candelatech.com> | |
46 | * | |
4ec93edb YH |
47 | * Renamed multiskb to clone_skb and cleaned up sending core for two distinct |
48 | * skb modes. A clone_skb=0 mode for Ben "ranges" work and a clone_skb != 0 | |
1da177e4 | 49 | * as a "fastpath" with a configurable number of clones after alloc's. |
4ec93edb YH |
50 | * clone_skb=0 means all packets are allocated this also means ranges time |
51 | * stamps etc can be used. clone_skb=100 means 1 malloc is followed by 100 | |
1da177e4 LT |
52 | * clones. |
53 | * | |
4ec93edb | 54 | * Also moved to /proc/net/pktgen/ |
1da177e4 LT |
55 | * --ro |
56 | * | |
57 | * Sept 10: Fixed threading/locking. Lots of bone-headed and more clever | |
58 | * mistakes. Also merged in DaveM's patch in the -pre6 patch. | |
59 | * --Ben Greear <greearb@candelatech.com> | |
60 | * | |
61 | * Integrated to 2.5.x 021029 --Lucio Maciel (luciomaciel@zipmail.com.br) | |
62 | * | |
4ec93edb | 63 | * |
1da177e4 LT |
64 | * 021124 Finished major redesign and rewrite for new functionality. |
65 | * See Documentation/networking/pktgen.txt for how to use this. | |
66 | * | |
67 | * The new operation: | |
4ec93edb YH |
68 | * For each CPU one thread/process is created at start. This process checks |
69 | * for running devices in the if_list and sends packets until count is 0 it | |
70 | * also the thread checks the thread->control which is used for inter-process | |
71 | * communication. controlling process "posts" operations to the threads this | |
1da177e4 LT |
72 | * way. The if_lock should be possible to remove when add/rem_device is merged |
73 | * into this too. | |
74 | * | |
4ec93edb YH |
75 | * By design there should only be *one* "controlling" process. In practice |
76 | * multiple write accesses gives unpredictable result. Understood by "write" | |
1da177e4 | 77 | * to /proc gives result code thats should be read be the "writer". |
b4099fab | 78 | * For practical use this should be no problem. |
1da177e4 | 79 | * |
4ec93edb YH |
80 | * Note when adding devices to a specific CPU there good idea to also assign |
81 | * /proc/irq/XX/smp_affinity so TX-interrupts gets bound to the same CPU. | |
1da177e4 LT |
82 | * --ro |
83 | * | |
4ec93edb | 84 | * Fix refcount off by one if first packet fails, potential null deref, |
1da177e4 LT |
85 | * memleak 030710- KJP |
86 | * | |
87 | * First "ranges" functionality for ipv6 030726 --ro | |
88 | * | |
89 | * Included flow support. 030802 ANK. | |
90 | * | |
91 | * Fixed unaligned access on IA-64 Grant Grundler <grundler@parisc-linux.org> | |
4ec93edb | 92 | * |
1da177e4 LT |
93 | * Remove if fix from added Harald Welte <laforge@netfilter.org> 040419 |
94 | * ia64 compilation fix from Aron Griffis <aron@hp.com> 040604 | |
95 | * | |
4ec93edb | 96 | * New xmit() return, do_div and misc clean up by Stephen Hemminger |
1da177e4 LT |
97 | * <shemminger@osdl.org> 040923 |
98 | * | |
4ec93edb | 99 | * Randy Dunlap fixed u64 printk compiler waring |
1da177e4 LT |
100 | * |
101 | * Remove FCS from BW calculation. Lennert Buytenhek <buytenh@wantstofly.org> | |
102 | * New time handling. Lennert Buytenhek <buytenh@wantstofly.org> 041213 | |
103 | * | |
4ec93edb | 104 | * Corrections from Nikolai Malykh (nmalykh@bilim.com) |
1da177e4 LT |
105 | * Removed unused flags F_SET_SRCMAC & F_SET_SRCIP 041230 |
106 | * | |
4ec93edb | 107 | * interruptible_sleep_on_timeout() replaced Nishanth Aravamudan <nacc@us.ibm.com> |
1da177e4 | 108 | * 050103 |
ca6549af SW |
109 | * |
110 | * MPLS support by Steven Whitehouse <steve@chygwyn.com> | |
111 | * | |
34954ddc FF |
112 | * 802.1Q/Q-in-Q support by Francesco Fondelli (FF) <francesco.fondelli@gmail.com> |
113 | * | |
ce5d0b47 AR |
114 | * Fixed src_mac command to set source mac of packet to value specified in |
115 | * command by Adit Ranadive <adit.262@gmail.com> | |
116 | * | |
1da177e4 LT |
117 | */ |
118 | #include <linux/sys.h> | |
119 | #include <linux/types.h> | |
120 | #include <linux/module.h> | |
121 | #include <linux/moduleparam.h> | |
122 | #include <linux/kernel.h> | |
222fa076 | 123 | #include <linux/mutex.h> |
1da177e4 LT |
124 | #include <linux/sched.h> |
125 | #include <linux/slab.h> | |
126 | #include <linux/vmalloc.h> | |
1da177e4 LT |
127 | #include <linux/unistd.h> |
128 | #include <linux/string.h> | |
129 | #include <linux/ptrace.h> | |
130 | #include <linux/errno.h> | |
131 | #include <linux/ioport.h> | |
132 | #include <linux/interrupt.h> | |
4fc268d2 | 133 | #include <linux/capability.h> |
09fe3ef4 | 134 | #include <linux/freezer.h> |
1da177e4 LT |
135 | #include <linux/delay.h> |
136 | #include <linux/timer.h> | |
cdcdbe0b | 137 | #include <linux/list.h> |
1da177e4 LT |
138 | #include <linux/init.h> |
139 | #include <linux/skbuff.h> | |
140 | #include <linux/netdevice.h> | |
141 | #include <linux/inet.h> | |
142 | #include <linux/inetdevice.h> | |
143 | #include <linux/rtnetlink.h> | |
144 | #include <linux/if_arp.h> | |
34954ddc | 145 | #include <linux/if_vlan.h> |
1da177e4 LT |
146 | #include <linux/in.h> |
147 | #include <linux/ip.h> | |
148 | #include <linux/ipv6.h> | |
149 | #include <linux/udp.h> | |
150 | #include <linux/proc_fs.h> | |
d50a6b56 | 151 | #include <linux/seq_file.h> |
1da177e4 | 152 | #include <linux/wait.h> |
f404e9a6 | 153 | #include <linux/etherdevice.h> |
ee74baa7 | 154 | #include <linux/kthread.h> |
457c4cbc | 155 | #include <net/net_namespace.h> |
1da177e4 LT |
156 | #include <net/checksum.h> |
157 | #include <net/ipv6.h> | |
158 | #include <net/addrconf.h> | |
a553e4a6 JHS |
159 | #ifdef CONFIG_XFRM |
160 | #include <net/xfrm.h> | |
161 | #endif | |
1da177e4 LT |
162 | #include <asm/byteorder.h> |
163 | #include <linux/rcupdate.h> | |
1977f032 | 164 | #include <linux/bitops.h> |
1da177e4 LT |
165 | #include <asm/io.h> |
166 | #include <asm/dma.h> | |
167 | #include <asm/uaccess.h> | |
222f1806 | 168 | #include <asm/div64.h> /* do_div */ |
1da177e4 LT |
169 | #include <asm/timex.h> |
170 | ||
b163911f | 171 | #define VERSION "pktgen v2.69: Packet Generator for packet performance testing.\n" |
1da177e4 | 172 | |
1da177e4 | 173 | #define IP_NAME_SZ 32 |
ca6549af | 174 | #define MAX_MPLS_LABELS 16 /* This is the max label stack depth */ |
d5f1ce9a | 175 | #define MPLS_STACK_BOTTOM htonl(0x00000100) |
1da177e4 LT |
176 | |
177 | /* Device flag bits */ | |
222f1806 LC |
178 | #define F_IPSRC_RND (1<<0) /* IP-Src Random */ |
179 | #define F_IPDST_RND (1<<1) /* IP-Dst Random */ | |
180 | #define F_UDPSRC_RND (1<<2) /* UDP-Src Random */ | |
181 | #define F_UDPDST_RND (1<<3) /* UDP-Dst Random */ | |
182 | #define F_MACSRC_RND (1<<4) /* MAC-Src Random */ | |
183 | #define F_MACDST_RND (1<<5) /* MAC-Dst Random */ | |
184 | #define F_TXSIZE_RND (1<<6) /* Transmit size is random */ | |
185 | #define F_IPV6 (1<<7) /* Interface in IPV6 Mode */ | |
ca6549af | 186 | #define F_MPLS_RND (1<<8) /* Random MPLS labels */ |
34954ddc FF |
187 | #define F_VID_RND (1<<9) /* Random VLAN ID */ |
188 | #define F_SVID_RND (1<<10) /* Random SVLAN ID */ | |
007a531b | 189 | #define F_FLOW_SEQ (1<<11) /* Sequential flows */ |
a553e4a6 | 190 | #define F_IPSEC_ON (1<<12) /* ipsec on for flows */ |
45b270f8 | 191 | #define F_QUEUE_MAP_RND (1<<13) /* queue map Random */ |
1da177e4 LT |
192 | |
193 | /* Thread control flag bits */ | |
222f1806 LC |
194 | #define T_TERMINATE (1<<0) |
195 | #define T_STOP (1<<1) /* Stop run */ | |
196 | #define T_RUN (1<<2) /* Start run */ | |
197 | #define T_REMDEVALL (1<<3) /* Remove all devs */ | |
198 | #define T_REMDEV (1<<4) /* Remove one dev */ | |
1da177e4 | 199 | |
1da177e4 LT |
200 | /* If lock -- can be removed after some work */ |
201 | #define if_lock(t) spin_lock(&(t->if_lock)); | |
202 | #define if_unlock(t) spin_unlock(&(t->if_lock)); | |
203 | ||
204 | /* Used to help with determining the pkts on receive */ | |
205 | #define PKTGEN_MAGIC 0xbe9be955 | |
d50a6b56 SH |
206 | #define PG_PROC_DIR "pktgen" |
207 | #define PGCTRL "pgctrl" | |
208 | static struct proc_dir_entry *pg_proc_dir = NULL; | |
1da177e4 LT |
209 | |
210 | #define MAX_CFLOWS 65536 | |
211 | ||
34954ddc FF |
212 | #define VLAN_TAG_SIZE(x) ((x)->vlan_id == 0xffff ? 0 : 4) |
213 | #define SVLAN_TAG_SIZE(x) ((x)->svlan_id == 0xffff ? 0 : 4) | |
214 | ||
222f1806 | 215 | struct flow_state { |
252e3346 | 216 | __be32 cur_daddr; |
222f1806 | 217 | int count; |
a553e4a6 JHS |
218 | #ifdef CONFIG_XFRM |
219 | struct xfrm_state *x; | |
220 | #endif | |
007a531b | 221 | __u32 flags; |
1da177e4 LT |
222 | }; |
223 | ||
007a531b JHS |
224 | /* flow flag bits */ |
225 | #define F_INIT (1<<0) /* flow has been initialized */ | |
226 | ||
1da177e4 | 227 | struct pktgen_dev { |
1da177e4 LT |
228 | /* |
229 | * Try to keep frequent/infrequent used vars. separated. | |
230 | */ | |
39df232f SH |
231 | struct proc_dir_entry *entry; /* proc file */ |
232 | struct pktgen_thread *pg_thread;/* the owner */ | |
c26a8016 | 233 | struct list_head list; /* Used for chaining in the thread's run-queue */ |
1da177e4 | 234 | |
222f1806 | 235 | int running; /* if this changes to false, the test will stop */ |
1da177e4 | 236 | |
222f1806 LC |
237 | /* If min != max, then we will either do a linear iteration, or |
238 | * we will do a random selection from within the range. | |
239 | */ | |
240 | __u32 flags; | |
95ed63f7 AK |
241 | int removal_mark; /* non-zero => the device is marked for |
242 | * removal by worker thread */ | |
1da177e4 | 243 | |
222f1806 LC |
244 | int min_pkt_size; /* = ETH_ZLEN; */ |
245 | int max_pkt_size; /* = ETH_ZLEN; */ | |
16dab72f | 246 | int pkt_overhead; /* overhead for MPLS, VLANs, IPSEC etc */ |
222f1806 LC |
247 | int nfrags; |
248 | __u32 delay_us; /* Default delay */ | |
249 | __u32 delay_ns; | |
250 | __u64 count; /* Default No packets to send */ | |
251 | __u64 sofar; /* How many pkts we've sent so far */ | |
252 | __u64 tx_bytes; /* How many bytes we've transmitted */ | |
253 | __u64 errors; /* Errors when trying to transmit, pkts will be re-sent */ | |
254 | ||
255 | /* runtime counters relating to clone_skb */ | |
256 | __u64 next_tx_us; /* timestamp of when to tx next */ | |
257 | __u32 next_tx_ns; | |
258 | ||
259 | __u64 allocated_skbs; | |
260 | __u32 clone_count; | |
261 | int last_ok; /* Was last skb sent? | |
262 | * Or a failed transmit of some sort? This will keep | |
263 | * sequence numbers in order, for example. | |
264 | */ | |
265 | __u64 started_at; /* micro-seconds */ | |
266 | __u64 stopped_at; /* micro-seconds */ | |
267 | __u64 idle_acc; /* micro-seconds */ | |
268 | __u32 seq_num; | |
269 | ||
270 | int clone_skb; /* Use multiple SKBs during packet gen. If this number | |
271 | * is greater than 1, then that many copies of the same | |
272 | * packet will be sent before a new packet is allocated. | |
273 | * For instance, if you want to send 1024 identical packets | |
274 | * before creating a new packet, set clone_skb to 1024. | |
275 | */ | |
276 | ||
277 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
278 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
279 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
280 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
281 | ||
282 | struct in6_addr in6_saddr; | |
283 | struct in6_addr in6_daddr; | |
284 | struct in6_addr cur_in6_daddr; | |
285 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 286 | /* For ranges */ |
222f1806 LC |
287 | struct in6_addr min_in6_daddr; |
288 | struct in6_addr max_in6_daddr; | |
289 | struct in6_addr min_in6_saddr; | |
290 | struct in6_addr max_in6_saddr; | |
291 | ||
292 | /* If we're doing ranges, random or incremental, then this | |
293 | * defines the min/max for those ranges. | |
294 | */ | |
252e3346 AV |
295 | __be32 saddr_min; /* inclusive, source IP address */ |
296 | __be32 saddr_max; /* exclusive, source IP address */ | |
297 | __be32 daddr_min; /* inclusive, dest IP address */ | |
298 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
299 | |
300 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
301 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
302 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
303 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
304 | ||
1ca7768c FF |
305 | /* DSCP + ECN */ |
306 | __u8 tos; /* six most significant bits of (former) IPv4 TOS are for dscp codepoint */ | |
307 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 (see RFC 3260, sec. 4) */ | |
308 | ||
ca6549af SW |
309 | /* MPLS */ |
310 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
311 | __be32 labels[MAX_MPLS_LABELS]; | |
312 | ||
34954ddc FF |
313 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
314 | __u8 vlan_p; | |
315 | __u8 vlan_cfi; | |
316 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
317 | ||
318 | __u8 svlan_p; | |
319 | __u8 svlan_cfi; | |
320 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
321 | ||
222f1806 LC |
322 | __u32 src_mac_count; /* How many MACs to iterate through */ |
323 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
324 | ||
325 | unsigned char dst_mac[ETH_ALEN]; | |
326 | unsigned char src_mac[ETH_ALEN]; | |
327 | ||
328 | __u32 cur_dst_mac_offset; | |
329 | __u32 cur_src_mac_offset; | |
252e3346 AV |
330 | __be32 cur_saddr; |
331 | __be32 cur_daddr; | |
222f1806 LC |
332 | __u16 cur_udp_dst; |
333 | __u16 cur_udp_src; | |
45b270f8 | 334 | __u16 cur_queue_map; |
222f1806 LC |
335 | __u32 cur_pkt_size; |
336 | ||
337 | __u8 hh[14]; | |
338 | /* = { | |
339 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
340 | ||
341 | We fill in SRC address later | |
342 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
343 | 0x08, 0x00 | |
344 | }; | |
345 | */ | |
346 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
347 | ||
348 | struct sk_buff *skb; /* skb we are to transmit next, mainly used for when we | |
349 | * are transmitting the same one multiple times | |
350 | */ | |
351 | struct net_device *odev; /* The out-going device. Note that the device should | |
352 | * have it's pg_info pointer pointing back to this | |
353 | * device. This will be set when the user specifies | |
354 | * the out-going device name (not when the inject is | |
355 | * started as it used to do.) | |
356 | */ | |
1da177e4 | 357 | struct flow_state *flows; |
222f1806 LC |
358 | unsigned cflows; /* Concurrent flows (config) */ |
359 | unsigned lflow; /* Flow length (config) */ | |
360 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 361 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
362 | |
363 | u16 queue_map_min; | |
364 | u16 queue_map_max; | |
365 | ||
a553e4a6 JHS |
366 | #ifdef CONFIG_XFRM |
367 | __u8 ipsmode; /* IPSEC mode (config) */ | |
368 | __u8 ipsproto; /* IPSEC type (config) */ | |
369 | #endif | |
39df232f | 370 | char result[512]; |
1da177e4 LT |
371 | }; |
372 | ||
373 | struct pktgen_hdr { | |
252e3346 AV |
374 | __be32 pgh_magic; |
375 | __be32 seq_num; | |
376 | __be32 tv_sec; | |
377 | __be32 tv_usec; | |
1da177e4 LT |
378 | }; |
379 | ||
380 | struct pktgen_thread { | |
222f1806 | 381 | spinlock_t if_lock; |
c26a8016 | 382 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 383 | struct list_head th_list; |
ee74baa7 | 384 | struct task_struct *tsk; |
222f1806 | 385 | char result[512]; |
222f1806 LC |
386 | |
387 | /* Field for thread to receive "posted" events terminate, stop ifs etc. */ | |
388 | ||
389 | u32 control; | |
1da177e4 LT |
390 | int cpu; |
391 | ||
222f1806 | 392 | wait_queue_head_t queue; |
d3ede327 | 393 | struct completion start_done; |
1da177e4 LT |
394 | }; |
395 | ||
396 | #define REMOVE 1 | |
397 | #define FIND 0 | |
398 | ||
1da177e4 | 399 | /** Convert to micro-seconds */ |
222f1806 | 400 | static inline __u64 tv_to_us(const struct timeval *tv) |
1da177e4 | 401 | { |
222f1806 LC |
402 | __u64 us = tv->tv_usec; |
403 | us += (__u64) tv->tv_sec * (__u64) 1000000; | |
404 | return us; | |
1da177e4 LT |
405 | } |
406 | ||
6db105db | 407 | static __u64 getCurUs(void) |
1da177e4 | 408 | { |
222f1806 LC |
409 | struct timeval tv; |
410 | do_gettimeofday(&tv); | |
411 | return tv_to_us(&tv); | |
1da177e4 LT |
412 | } |
413 | ||
1da177e4 LT |
414 | /* old include end */ |
415 | ||
416 | static char version[] __initdata = VERSION; | |
417 | ||
222f1806 LC |
418 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
419 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
420 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
421 | const char *ifname); | |
1da177e4 LT |
422 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
423 | static void pktgen_run_all_threads(void); | |
424 | static void pktgen_stop_all_threads_ifs(void); | |
425 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev); | |
222f1806 | 426 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 427 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 428 | |
222f1806 LC |
429 | static unsigned int scan_ip6(const char *s, char ip[16]); |
430 | static unsigned int fmt_ip6(char *s, const char ip[16]); | |
1da177e4 LT |
431 | |
432 | /* Module parameters, defaults. */ | |
222f1806 | 433 | static int pg_count_d = 1000; /* 1000 pkts by default */ |
f34fbb97 JK |
434 | static int pg_delay_d; |
435 | static int pg_clone_skb_d; | |
436 | static int debug; | |
1da177e4 | 437 | |
222fa076 | 438 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 439 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 440 | |
1da177e4 LT |
441 | static struct notifier_block pktgen_notifier_block = { |
442 | .notifier_call = pktgen_device_event, | |
443 | }; | |
444 | ||
1da177e4 | 445 | /* |
4ec93edb | 446 | * /proc handling functions |
1da177e4 LT |
447 | * |
448 | */ | |
449 | ||
d50a6b56 | 450 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 451 | { |
d50a6b56 SH |
452 | seq_puts(seq, VERSION); |
453 | return 0; | |
1da177e4 LT |
454 | } |
455 | ||
222f1806 LC |
456 | static ssize_t pgctrl_write(struct file *file, const char __user * buf, |
457 | size_t count, loff_t * ppos) | |
1da177e4 | 458 | { |
1da177e4 | 459 | int err = 0; |
d50a6b56 | 460 | char data[128]; |
1da177e4 | 461 | |
222f1806 LC |
462 | if (!capable(CAP_NET_ADMIN)) { |
463 | err = -EPERM; | |
1da177e4 | 464 | goto out; |
222f1806 | 465 | } |
1da177e4 | 466 | |
d50a6b56 SH |
467 | if (count > sizeof(data)) |
468 | count = sizeof(data); | |
1da177e4 | 469 | |
1da177e4 | 470 | if (copy_from_user(data, buf, count)) { |
b4099fab | 471 | err = -EFAULT; |
d50a6b56 | 472 | goto out; |
222f1806 LC |
473 | } |
474 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 475 | |
222f1806 | 476 | if (!strcmp(data, "stop")) |
1da177e4 LT |
477 | pktgen_stop_all_threads_ifs(); |
478 | ||
222f1806 | 479 | else if (!strcmp(data, "start")) |
1da177e4 LT |
480 | pktgen_run_all_threads(); |
481 | ||
222f1806 | 482 | else |
25a8b254 | 483 | printk(KERN_WARNING "pktgen: Unknown command: %s\n", data); |
1da177e4 LT |
484 | |
485 | err = count; | |
486 | ||
222f1806 LC |
487 | out: |
488 | return err; | |
1da177e4 LT |
489 | } |
490 | ||
d50a6b56 SH |
491 | static int pgctrl_open(struct inode *inode, struct file *file) |
492 | { | |
493 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
494 | } | |
495 | ||
9a32144e | 496 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
497 | .owner = THIS_MODULE, |
498 | .open = pgctrl_open, | |
499 | .read = seq_read, | |
500 | .llseek = seq_lseek, | |
501 | .write = pgctrl_write, | |
502 | .release = single_release, | |
d50a6b56 SH |
503 | }; |
504 | ||
505 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 506 | { |
222f1806 LC |
507 | struct pktgen_dev *pkt_dev = seq->private; |
508 | __u64 sa; | |
509 | __u64 stopped; | |
510 | __u64 now = getCurUs(); | |
0795af57 | 511 | DECLARE_MAC_BUF(mac); |
222f1806 LC |
512 | |
513 | seq_printf(seq, | |
514 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
515 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
516 | pkt_dev->max_pkt_size); | |
517 | ||
518 | seq_printf(seq, | |
519 | " frags: %d delay: %u clone_skb: %d ifname: %s\n", | |
520 | pkt_dev->nfrags, | |
521 | 1000 * pkt_dev->delay_us + pkt_dev->delay_ns, | |
39df232f | 522 | pkt_dev->clone_skb, pkt_dev->odev->name); |
222f1806 LC |
523 | |
524 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
525 | pkt_dev->lflow); | |
526 | ||
45b270f8 RO |
527 | seq_printf(seq, |
528 | " queue_map_min: %u queue_map_max: %u\n", | |
529 | pkt_dev->queue_map_min, | |
530 | pkt_dev->queue_map_max); | |
531 | ||
222f1806 LC |
532 | if (pkt_dev->flags & F_IPV6) { |
533 | char b1[128], b2[128], b3[128]; | |
534 | fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr); | |
535 | fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr); | |
536 | fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr); | |
537 | seq_printf(seq, | |
538 | " saddr: %s min_saddr: %s max_saddr: %s\n", b1, | |
539 | b2, b3); | |
540 | ||
541 | fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr); | |
542 | fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr); | |
543 | fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr); | |
544 | seq_printf(seq, | |
545 | " daddr: %s min_daddr: %s max_daddr: %s\n", b1, | |
546 | b2, b3); | |
547 | ||
548 | } else | |
549 | seq_printf(seq, | |
550 | " dst_min: %s dst_max: %s\n src_min: %s src_max: %s\n", | |
551 | pkt_dev->dst_min, pkt_dev->dst_max, pkt_dev->src_min, | |
552 | pkt_dev->src_max); | |
1da177e4 | 553 | |
222f1806 | 554 | seq_puts(seq, " src_mac: "); |
1da177e4 | 555 | |
0795af57 JP |
556 | seq_printf(seq, "%s ", |
557 | print_mac(mac, is_zero_ether_addr(pkt_dev->src_mac) ? | |
558 | pkt_dev->odev->dev_addr : pkt_dev->src_mac)); | |
222f1806 LC |
559 | |
560 | seq_printf(seq, "dst_mac: "); | |
0795af57 | 561 | seq_printf(seq, "%s\n", print_mac(mac, pkt_dev->dst_mac)); |
222f1806 LC |
562 | |
563 | seq_printf(seq, | |
564 | " udp_src_min: %d udp_src_max: %d udp_dst_min: %d udp_dst_max: %d\n", | |
565 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, | |
566 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
567 | ||
568 | seq_printf(seq, | |
ca6549af | 569 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 570 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 571 | |
ca6549af SW |
572 | if (pkt_dev->nr_labels) { |
573 | unsigned i; | |
574 | seq_printf(seq, " mpls: "); | |
e71a4783 | 575 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
576 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
577 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
578 | } | |
579 | ||
34954ddc FF |
580 | if (pkt_dev->vlan_id != 0xffff) { |
581 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", | |
582 | pkt_dev->vlan_id, pkt_dev->vlan_p, pkt_dev->vlan_cfi); | |
583 | } | |
584 | ||
585 | if (pkt_dev->svlan_id != 0xffff) { | |
586 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", | |
587 | pkt_dev->svlan_id, pkt_dev->svlan_p, pkt_dev->svlan_cfi); | |
588 | } | |
589 | ||
1ca7768c FF |
590 | if (pkt_dev->tos) { |
591 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); | |
592 | } | |
593 | ||
594 | if (pkt_dev->traffic_class) { | |
595 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); | |
596 | } | |
597 | ||
ca6549af SW |
598 | seq_printf(seq, " Flags: "); |
599 | ||
222f1806 LC |
600 | if (pkt_dev->flags & F_IPV6) |
601 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 602 | |
222f1806 LC |
603 | if (pkt_dev->flags & F_IPSRC_RND) |
604 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 605 | |
222f1806 LC |
606 | if (pkt_dev->flags & F_IPDST_RND) |
607 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 608 | |
222f1806 LC |
609 | if (pkt_dev->flags & F_TXSIZE_RND) |
610 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 611 | |
222f1806 LC |
612 | if (pkt_dev->flags & F_UDPSRC_RND) |
613 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 614 | |
222f1806 LC |
615 | if (pkt_dev->flags & F_UDPDST_RND) |
616 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 617 | |
ca6549af SW |
618 | if (pkt_dev->flags & F_MPLS_RND) |
619 | seq_printf(seq, "MPLS_RND "); | |
620 | ||
45b270f8 RO |
621 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
622 | seq_printf(seq, "QUEUE_MAP_RND "); | |
623 | ||
007a531b JHS |
624 | if (pkt_dev->cflows) { |
625 | if (pkt_dev->flags & F_FLOW_SEQ) | |
626 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
627 | else | |
628 | seq_printf(seq, "FLOW_RND "); | |
629 | } | |
630 | ||
a553e4a6 JHS |
631 | #ifdef CONFIG_XFRM |
632 | if (pkt_dev->flags & F_IPSEC_ON) | |
633 | seq_printf(seq, "IPSEC "); | |
634 | #endif | |
635 | ||
222f1806 LC |
636 | if (pkt_dev->flags & F_MACSRC_RND) |
637 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 638 | |
222f1806 LC |
639 | if (pkt_dev->flags & F_MACDST_RND) |
640 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 641 | |
34954ddc FF |
642 | if (pkt_dev->flags & F_VID_RND) |
643 | seq_printf(seq, "VID_RND "); | |
644 | ||
645 | if (pkt_dev->flags & F_SVID_RND) | |
646 | seq_printf(seq, "SVID_RND "); | |
647 | ||
222f1806 LC |
648 | seq_puts(seq, "\n"); |
649 | ||
650 | sa = pkt_dev->started_at; | |
651 | stopped = pkt_dev->stopped_at; | |
652 | if (pkt_dev->running) | |
653 | stopped = now; /* not really stopped, more like last-running-at */ | |
1da177e4 | 654 | |
222f1806 LC |
655 | seq_printf(seq, |
656 | "Current:\n pkts-sofar: %llu errors: %llu\n started: %lluus stopped: %lluus idle: %lluus\n", | |
657 | (unsigned long long)pkt_dev->sofar, | |
658 | (unsigned long long)pkt_dev->errors, (unsigned long long)sa, | |
659 | (unsigned long long)stopped, | |
660 | (unsigned long long)pkt_dev->idle_acc); | |
1da177e4 | 661 | |
222f1806 LC |
662 | seq_printf(seq, |
663 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
664 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
665 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 666 | |
222f1806 | 667 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 668 | char b1[128], b2[128]; |
222f1806 LC |
669 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
670 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
671 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
672 | } else | |
673 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 674 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 675 | |
222f1806 | 676 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 677 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 678 | |
45b270f8 RO |
679 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
680 | ||
222f1806 | 681 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
682 | |
683 | if (pkt_dev->result[0]) | |
222f1806 | 684 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 685 | else |
222f1806 | 686 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 687 | |
d50a6b56 | 688 | return 0; |
1da177e4 LT |
689 | } |
690 | ||
ca6549af | 691 | |
1ca7768c | 692 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, __u32 *num) |
ca6549af SW |
693 | { |
694 | int i = 0; | |
695 | *num = 0; | |
696 | ||
e71a4783 | 697 | for (; i < maxlen; i++) { |
ca6549af SW |
698 | char c; |
699 | *num <<= 4; | |
700 | if (get_user(c, &user_buffer[i])) | |
701 | return -EFAULT; | |
702 | if ((c >= '0') && (c <= '9')) | |
703 | *num |= c - '0'; | |
704 | else if ((c >= 'a') && (c <= 'f')) | |
705 | *num |= c - 'a' + 10; | |
706 | else if ((c >= 'A') && (c <= 'F')) | |
707 | *num |= c - 'A' + 10; | |
708 | else | |
709 | break; | |
710 | } | |
711 | return i; | |
712 | } | |
713 | ||
222f1806 LC |
714 | static int count_trail_chars(const char __user * user_buffer, |
715 | unsigned int maxlen) | |
1da177e4 LT |
716 | { |
717 | int i; | |
718 | ||
719 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
720 | char c; |
721 | if (get_user(c, &user_buffer[i])) | |
722 | return -EFAULT; | |
723 | switch (c) { | |
1da177e4 LT |
724 | case '\"': |
725 | case '\n': | |
726 | case '\r': | |
727 | case '\t': | |
728 | case ' ': | |
729 | case '=': | |
730 | break; | |
731 | default: | |
732 | goto done; | |
3ff50b79 | 733 | } |
1da177e4 LT |
734 | } |
735 | done: | |
736 | return i; | |
737 | } | |
738 | ||
222f1806 LC |
739 | static unsigned long num_arg(const char __user * user_buffer, |
740 | unsigned long maxlen, unsigned long *num) | |
1da177e4 LT |
741 | { |
742 | int i = 0; | |
743 | *num = 0; | |
222f1806 LC |
744 | |
745 | for (; i < maxlen; i++) { | |
746 | char c; | |
747 | if (get_user(c, &user_buffer[i])) | |
748 | return -EFAULT; | |
749 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 750 | *num *= 10; |
222f1806 | 751 | *num += c - '0'; |
1da177e4 LT |
752 | } else |
753 | break; | |
754 | } | |
755 | return i; | |
756 | } | |
757 | ||
222f1806 | 758 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 LT |
759 | { |
760 | int i = 0; | |
761 | ||
222f1806 LC |
762 | for (; i < maxlen; i++) { |
763 | char c; | |
764 | if (get_user(c, &user_buffer[i])) | |
765 | return -EFAULT; | |
766 | switch (c) { | |
1da177e4 LT |
767 | case '\"': |
768 | case '\n': | |
769 | case '\r': | |
770 | case '\t': | |
771 | case ' ': | |
772 | goto done_str; | |
773 | break; | |
774 | default: | |
775 | break; | |
3ff50b79 | 776 | } |
1da177e4 LT |
777 | } |
778 | done_str: | |
1da177e4 LT |
779 | return i; |
780 | } | |
781 | ||
ca6549af SW |
782 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
783 | { | |
784 | unsigned n = 0; | |
785 | char c; | |
786 | ssize_t i = 0; | |
787 | int len; | |
788 | ||
789 | pkt_dev->nr_labels = 0; | |
790 | do { | |
791 | __u32 tmp; | |
1ca7768c | 792 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
793 | if (len <= 0) |
794 | return len; | |
795 | pkt_dev->labels[n] = htonl(tmp); | |
796 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
797 | pkt_dev->flags |= F_MPLS_RND; | |
798 | i += len; | |
799 | if (get_user(c, &buffer[i])) | |
800 | return -EFAULT; | |
801 | i++; | |
802 | n++; | |
803 | if (n >= MAX_MPLS_LABELS) | |
804 | return -E2BIG; | |
e71a4783 | 805 | } while (c == ','); |
ca6549af SW |
806 | |
807 | pkt_dev->nr_labels = n; | |
808 | return i; | |
809 | } | |
810 | ||
222f1806 LC |
811 | static ssize_t pktgen_if_write(struct file *file, |
812 | const char __user * user_buffer, size_t count, | |
813 | loff_t * offset) | |
1da177e4 | 814 | { |
222f1806 LC |
815 | struct seq_file *seq = (struct seq_file *)file->private_data; |
816 | struct pktgen_dev *pkt_dev = seq->private; | |
1da177e4 LT |
817 | int i = 0, max, len; |
818 | char name[16], valstr[32]; | |
819 | unsigned long value = 0; | |
222f1806 LC |
820 | char *pg_result = NULL; |
821 | int tmp = 0; | |
1da177e4 | 822 | char buf[128]; |
222f1806 LC |
823 | |
824 | pg_result = &(pkt_dev->result[0]); | |
825 | ||
1da177e4 | 826 | if (count < 1) { |
25a8b254 | 827 | printk(KERN_WARNING "pktgen: wrong command format\n"); |
1da177e4 LT |
828 | return -EINVAL; |
829 | } | |
222f1806 | 830 | |
1da177e4 LT |
831 | max = count - i; |
832 | tmp = count_trail_chars(&user_buffer[i], max); | |
222f1806 | 833 | if (tmp < 0) { |
25a8b254 | 834 | printk(KERN_WARNING "pktgen: illegal format\n"); |
222f1806 | 835 | return tmp; |
1da177e4 | 836 | } |
222f1806 LC |
837 | i += tmp; |
838 | ||
1da177e4 LT |
839 | /* Read variable name */ |
840 | ||
841 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 LC |
842 | if (len < 0) { |
843 | return len; | |
844 | } | |
1da177e4 | 845 | memset(name, 0, sizeof(name)); |
222f1806 | 846 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
847 | return -EFAULT; |
848 | i += len; | |
222f1806 LC |
849 | |
850 | max = count - i; | |
1da177e4 | 851 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
852 | if (len < 0) |
853 | return len; | |
854 | ||
1da177e4 LT |
855 | i += len; |
856 | ||
857 | if (debug) { | |
222f1806 LC |
858 | char tb[count + 1]; |
859 | if (copy_from_user(tb, user_buffer, count)) | |
1da177e4 | 860 | return -EFAULT; |
222f1806 | 861 | tb[count] = 0; |
25a8b254 | 862 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
863 | (unsigned long)count, tb); |
864 | } | |
1da177e4 LT |
865 | |
866 | if (!strcmp(name, "min_pkt_size")) { | |
867 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
868 | if (len < 0) { |
869 | return len; | |
870 | } | |
1da177e4 | 871 | i += len; |
222f1806 LC |
872 | if (value < 14 + 20 + 8) |
873 | value = 14 + 20 + 8; | |
874 | if (value != pkt_dev->min_pkt_size) { | |
875 | pkt_dev->min_pkt_size = value; | |
876 | pkt_dev->cur_pkt_size = value; | |
877 | } | |
878 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
879 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
880 | return count; |
881 | } | |
882 | ||
222f1806 | 883 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 884 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
885 | if (len < 0) { |
886 | return len; | |
887 | } | |
1da177e4 | 888 | i += len; |
222f1806 LC |
889 | if (value < 14 + 20 + 8) |
890 | value = 14 + 20 + 8; | |
891 | if (value != pkt_dev->max_pkt_size) { | |
892 | pkt_dev->max_pkt_size = value; | |
893 | pkt_dev->cur_pkt_size = value; | |
894 | } | |
895 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
896 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
897 | return count; |
898 | } | |
899 | ||
222f1806 | 900 | /* Shortcut for min = max */ |
1da177e4 LT |
901 | |
902 | if (!strcmp(name, "pkt_size")) { | |
903 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
904 | if (len < 0) { |
905 | return len; | |
906 | } | |
1da177e4 | 907 | i += len; |
222f1806 LC |
908 | if (value < 14 + 20 + 8) |
909 | value = 14 + 20 + 8; | |
910 | if (value != pkt_dev->min_pkt_size) { | |
911 | pkt_dev->min_pkt_size = value; | |
912 | pkt_dev->max_pkt_size = value; | |
913 | pkt_dev->cur_pkt_size = value; | |
914 | } | |
1da177e4 LT |
915 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
916 | return count; | |
917 | } | |
918 | ||
222f1806 | 919 | if (!strcmp(name, "debug")) { |
1da177e4 | 920 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
921 | if (len < 0) { |
922 | return len; | |
923 | } | |
1da177e4 | 924 | i += len; |
222f1806 | 925 | debug = value; |
1da177e4 LT |
926 | sprintf(pg_result, "OK: debug=%u", debug); |
927 | return count; | |
928 | } | |
929 | ||
222f1806 | 930 | if (!strcmp(name, "frags")) { |
1da177e4 | 931 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
932 | if (len < 0) { |
933 | return len; | |
934 | } | |
1da177e4 LT |
935 | i += len; |
936 | pkt_dev->nfrags = value; | |
937 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
938 | return count; | |
939 | } | |
940 | if (!strcmp(name, "delay")) { | |
941 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
942 | if (len < 0) { |
943 | return len; | |
944 | } | |
1da177e4 LT |
945 | i += len; |
946 | if (value == 0x7FFFFFFF) { | |
947 | pkt_dev->delay_us = 0x7FFFFFFF; | |
948 | pkt_dev->delay_ns = 0; | |
949 | } else { | |
950 | pkt_dev->delay_us = value / 1000; | |
951 | pkt_dev->delay_ns = value % 1000; | |
952 | } | |
222f1806 LC |
953 | sprintf(pg_result, "OK: delay=%u", |
954 | 1000 * pkt_dev->delay_us + pkt_dev->delay_ns); | |
1da177e4 LT |
955 | return count; |
956 | } | |
222f1806 | 957 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 958 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
959 | if (len < 0) { |
960 | return len; | |
961 | } | |
1da177e4 | 962 | i += len; |
222f1806 LC |
963 | if (value != pkt_dev->udp_src_min) { |
964 | pkt_dev->udp_src_min = value; | |
965 | pkt_dev->cur_udp_src = value; | |
966 | } | |
1da177e4 LT |
967 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
968 | return count; | |
969 | } | |
222f1806 | 970 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 971 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
972 | if (len < 0) { |
973 | return len; | |
974 | } | |
1da177e4 | 975 | i += len; |
222f1806 LC |
976 | if (value != pkt_dev->udp_dst_min) { |
977 | pkt_dev->udp_dst_min = value; | |
978 | pkt_dev->cur_udp_dst = value; | |
979 | } | |
1da177e4 LT |
980 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
981 | return count; | |
982 | } | |
222f1806 | 983 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 984 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
985 | if (len < 0) { |
986 | return len; | |
987 | } | |
1da177e4 | 988 | i += len; |
222f1806 LC |
989 | if (value != pkt_dev->udp_src_max) { |
990 | pkt_dev->udp_src_max = value; | |
991 | pkt_dev->cur_udp_src = value; | |
992 | } | |
1da177e4 LT |
993 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
994 | return count; | |
995 | } | |
222f1806 | 996 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 997 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
998 | if (len < 0) { |
999 | return len; | |
1000 | } | |
1da177e4 | 1001 | i += len; |
222f1806 LC |
1002 | if (value != pkt_dev->udp_dst_max) { |
1003 | pkt_dev->udp_dst_max = value; | |
1004 | pkt_dev->cur_udp_dst = value; | |
1005 | } | |
1da177e4 LT |
1006 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1007 | return count; | |
1008 | } | |
1009 | if (!strcmp(name, "clone_skb")) { | |
1010 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1011 | if (len < 0) { |
1012 | return len; | |
1013 | } | |
1da177e4 | 1014 | i += len; |
222f1806 LC |
1015 | pkt_dev->clone_skb = value; |
1016 | ||
1da177e4 LT |
1017 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1018 | return count; | |
1019 | } | |
1020 | if (!strcmp(name, "count")) { | |
1021 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1022 | if (len < 0) { |
1023 | return len; | |
1024 | } | |
1da177e4 LT |
1025 | i += len; |
1026 | pkt_dev->count = value; | |
1027 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1028 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1029 | return count; |
1030 | } | |
1031 | if (!strcmp(name, "src_mac_count")) { | |
1032 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1033 | if (len < 0) { |
1034 | return len; | |
1035 | } | |
1da177e4 LT |
1036 | i += len; |
1037 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1038 | pkt_dev->src_mac_count = value; |
1039 | pkt_dev->cur_src_mac_offset = 0; | |
1040 | } | |
1041 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1042 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1043 | return count; |
1044 | } | |
1045 | if (!strcmp(name, "dst_mac_count")) { | |
1046 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1047 | if (len < 0) { |
1048 | return len; | |
1049 | } | |
1da177e4 LT |
1050 | i += len; |
1051 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1052 | pkt_dev->dst_mac_count = value; |
1053 | pkt_dev->cur_dst_mac_offset = 0; | |
1054 | } | |
1055 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1056 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1057 | return count; |
1058 | } | |
1059 | if (!strcmp(name, "flag")) { | |
222f1806 LC |
1060 | char f[32]; |
1061 | memset(f, 0, 32); | |
1da177e4 | 1062 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1063 | if (len < 0) { |
1064 | return len; | |
1065 | } | |
1da177e4 LT |
1066 | if (copy_from_user(f, &user_buffer[i], len)) |
1067 | return -EFAULT; | |
1068 | i += len; | |
222f1806 LC |
1069 | if (strcmp(f, "IPSRC_RND") == 0) |
1070 | pkt_dev->flags |= F_IPSRC_RND; | |
1071 | ||
1072 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1073 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1074 | ||
1075 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1076 | pkt_dev->flags |= F_TXSIZE_RND; | |
1077 | ||
1078 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1079 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1080 | ||
1081 | else if (strcmp(f, "IPDST_RND") == 0) | |
1082 | pkt_dev->flags |= F_IPDST_RND; | |
1083 | ||
1084 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1085 | pkt_dev->flags &= ~F_IPDST_RND; | |
1086 | ||
1087 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1088 | pkt_dev->flags |= F_UDPSRC_RND; | |
1089 | ||
1090 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1091 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1092 | ||
1093 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1094 | pkt_dev->flags |= F_UDPDST_RND; | |
1095 | ||
1096 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1097 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1098 | ||
1099 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1100 | pkt_dev->flags |= F_MACSRC_RND; | |
1101 | ||
1102 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1103 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1104 | ||
1105 | else if (strcmp(f, "MACDST_RND") == 0) | |
1106 | pkt_dev->flags |= F_MACDST_RND; | |
1107 | ||
1108 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1109 | pkt_dev->flags &= ~F_MACDST_RND; | |
1110 | ||
ca6549af SW |
1111 | else if (strcmp(f, "MPLS_RND") == 0) |
1112 | pkt_dev->flags |= F_MPLS_RND; | |
1113 | ||
1114 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1115 | pkt_dev->flags &= ~F_MPLS_RND; | |
1116 | ||
34954ddc FF |
1117 | else if (strcmp(f, "VID_RND") == 0) |
1118 | pkt_dev->flags |= F_VID_RND; | |
1119 | ||
1120 | else if (strcmp(f, "!VID_RND") == 0) | |
1121 | pkt_dev->flags &= ~F_VID_RND; | |
1122 | ||
1123 | else if (strcmp(f, "SVID_RND") == 0) | |
1124 | pkt_dev->flags |= F_SVID_RND; | |
1125 | ||
1126 | else if (strcmp(f, "!SVID_RND") == 0) | |
1127 | pkt_dev->flags &= ~F_SVID_RND; | |
1128 | ||
007a531b JHS |
1129 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1130 | pkt_dev->flags |= F_FLOW_SEQ; | |
1131 | ||
45b270f8 RO |
1132 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1133 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1134 | ||
1135 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1136 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
a553e4a6 JHS |
1137 | #ifdef CONFIG_XFRM |
1138 | else if (strcmp(f, "IPSEC") == 0) | |
1139 | pkt_dev->flags |= F_IPSEC_ON; | |
1140 | #endif | |
1141 | ||
1ca7768c FF |
1142 | else if (strcmp(f, "!IPV6") == 0) |
1143 | pkt_dev->flags &= ~F_IPV6; | |
1144 | ||
222f1806 LC |
1145 | else { |
1146 | sprintf(pg_result, | |
1147 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1148 | f, | |
1ca7768c | 1149 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
a553e4a6 | 1150 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC\n"); |
222f1806 LC |
1151 | return count; |
1152 | } | |
1da177e4 LT |
1153 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1154 | return count; | |
1155 | } | |
1156 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1157 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
222f1806 LC |
1158 | if (len < 0) { |
1159 | return len; | |
1160 | } | |
1da177e4 | 1161 | |
222f1806 | 1162 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1163 | return -EFAULT; |
222f1806 LC |
1164 | buf[len] = 0; |
1165 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1166 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1167 | strncpy(pkt_dev->dst_min, buf, len); | |
1168 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1169 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1170 | } | |
1171 | if (debug) | |
25a8b254 | 1172 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1173 | pkt_dev->dst_min); |
1174 | i += len; | |
1da177e4 LT |
1175 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1176 | return count; | |
1177 | } | |
1178 | if (!strcmp(name, "dst_max")) { | |
1179 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
222f1806 LC |
1180 | if (len < 0) { |
1181 | return len; | |
1182 | } | |
1da177e4 | 1183 | |
222f1806 | 1184 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1185 | return -EFAULT; |
1186 | ||
222f1806 LC |
1187 | buf[len] = 0; |
1188 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1189 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1190 | strncpy(pkt_dev->dst_max, buf, len); | |
1191 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1192 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1193 | } | |
1194 | if (debug) | |
25a8b254 | 1195 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1196 | pkt_dev->dst_max); |
1da177e4 LT |
1197 | i += len; |
1198 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1199 | return count; | |
1200 | } | |
1201 | if (!strcmp(name, "dst6")) { | |
1202 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1203 | if (len < 0) |
1204 | return len; | |
1da177e4 LT |
1205 | |
1206 | pkt_dev->flags |= F_IPV6; | |
1207 | ||
222f1806 | 1208 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1209 | return -EFAULT; |
222f1806 | 1210 | buf[len] = 0; |
1da177e4 LT |
1211 | |
1212 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1213 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1214 | |
1215 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1216 | ||
222f1806 | 1217 | if (debug) |
25a8b254 | 1218 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1219 | |
222f1806 | 1220 | i += len; |
1da177e4 LT |
1221 | sprintf(pg_result, "OK: dst6=%s", buf); |
1222 | return count; | |
1223 | } | |
1224 | if (!strcmp(name, "dst6_min")) { | |
1225 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1226 | if (len < 0) |
1227 | return len; | |
1da177e4 LT |
1228 | |
1229 | pkt_dev->flags |= F_IPV6; | |
1230 | ||
222f1806 | 1231 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1232 | return -EFAULT; |
222f1806 | 1233 | buf[len] = 0; |
1da177e4 LT |
1234 | |
1235 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1236 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1237 | |
222f1806 LC |
1238 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1239 | &pkt_dev->min_in6_daddr); | |
1240 | if (debug) | |
25a8b254 | 1241 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1242 | |
222f1806 | 1243 | i += len; |
1da177e4 LT |
1244 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1245 | return count; | |
1246 | } | |
1247 | if (!strcmp(name, "dst6_max")) { | |
1248 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1249 | if (len < 0) |
1250 | return len; | |
1da177e4 LT |
1251 | |
1252 | pkt_dev->flags |= F_IPV6; | |
1253 | ||
222f1806 | 1254 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1255 | return -EFAULT; |
222f1806 | 1256 | buf[len] = 0; |
1da177e4 LT |
1257 | |
1258 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1259 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1260 | |
222f1806 | 1261 | if (debug) |
25a8b254 | 1262 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1263 | |
222f1806 | 1264 | i += len; |
1da177e4 LT |
1265 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1266 | return count; | |
1267 | } | |
1268 | if (!strcmp(name, "src6")) { | |
1269 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1270 | if (len < 0) |
1271 | return len; | |
1da177e4 LT |
1272 | |
1273 | pkt_dev->flags |= F_IPV6; | |
1274 | ||
222f1806 | 1275 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1276 | return -EFAULT; |
222f1806 | 1277 | buf[len] = 0; |
1da177e4 LT |
1278 | |
1279 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1280 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1281 | |
1282 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1283 | ||
222f1806 | 1284 | if (debug) |
25a8b254 | 1285 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1286 | |
1287 | i += len; | |
1da177e4 LT |
1288 | sprintf(pg_result, "OK: src6=%s", buf); |
1289 | return count; | |
1290 | } | |
1291 | if (!strcmp(name, "src_min")) { | |
1292 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
222f1806 LC |
1293 | if (len < 0) { |
1294 | return len; | |
1295 | } | |
1296 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1297 | return -EFAULT; |
222f1806 LC |
1298 | buf[len] = 0; |
1299 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1300 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1301 | strncpy(pkt_dev->src_min, buf, len); | |
1302 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1303 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1304 | } | |
1305 | if (debug) | |
25a8b254 | 1306 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1307 | pkt_dev->src_min); |
1da177e4 LT |
1308 | i += len; |
1309 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1310 | return count; | |
1311 | } | |
1312 | if (!strcmp(name, "src_max")) { | |
1313 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
222f1806 LC |
1314 | if (len < 0) { |
1315 | return len; | |
1316 | } | |
1317 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1318 | return -EFAULT; |
222f1806 LC |
1319 | buf[len] = 0; |
1320 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1321 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1322 | strncpy(pkt_dev->src_max, buf, len); | |
1323 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1324 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1325 | } | |
1326 | if (debug) | |
25a8b254 | 1327 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1328 | pkt_dev->src_max); |
1da177e4 LT |
1329 | i += len; |
1330 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1331 | return count; | |
1332 | } | |
1333 | if (!strcmp(name, "dst_mac")) { | |
1334 | char *v = valstr; | |
f404e9a6 | 1335 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1336 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1337 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1338 | |
1da177e4 | 1339 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1340 | if (len < 0) { |
1341 | return len; | |
1342 | } | |
1da177e4 | 1343 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1344 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1345 | return -EFAULT; |
1346 | i += len; | |
1347 | ||
222f1806 | 1348 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
1da177e4 LT |
1349 | if (*v >= '0' && *v <= '9') { |
1350 | *m *= 16; | |
1351 | *m += *v - '0'; | |
1352 | } | |
1353 | if (*v >= 'A' && *v <= 'F') { | |
1354 | *m *= 16; | |
1355 | *m += *v - 'A' + 10; | |
1356 | } | |
1357 | if (*v >= 'a' && *v <= 'f') { | |
1358 | *m *= 16; | |
1359 | *m += *v - 'a' + 10; | |
1360 | } | |
1361 | if (*v == ':') { | |
1362 | m++; | |
1363 | *m = 0; | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1368 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1369 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1370 | |
1da177e4 LT |
1371 | sprintf(pg_result, "OK: dstmac"); |
1372 | return count; | |
1373 | } | |
1374 | if (!strcmp(name, "src_mac")) { | |
1375 | char *v = valstr; | |
ce5d0b47 | 1376 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1377 | unsigned char *m = pkt_dev->src_mac; |
1378 | ||
ce5d0b47 AR |
1379 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1380 | ||
1da177e4 | 1381 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1382 | if (len < 0) { |
1383 | return len; | |
1384 | } | |
1da177e4 | 1385 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1386 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1387 | return -EFAULT; |
1388 | i += len; | |
1389 | ||
222f1806 | 1390 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
1da177e4 LT |
1391 | if (*v >= '0' && *v <= '9') { |
1392 | *m *= 16; | |
1393 | *m += *v - '0'; | |
1394 | } | |
1395 | if (*v >= 'A' && *v <= 'F') { | |
1396 | *m *= 16; | |
1397 | *m += *v - 'A' + 10; | |
1398 | } | |
1399 | if (*v >= 'a' && *v <= 'f') { | |
1400 | *m *= 16; | |
1401 | *m += *v - 'a' + 10; | |
1402 | } | |
1403 | if (*v == ':') { | |
1404 | m++; | |
1405 | *m = 0; | |
1406 | } | |
222f1806 | 1407 | } |
1da177e4 | 1408 | |
ce5d0b47 AR |
1409 | /* Set up Src MAC */ |
1410 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1411 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1412 | ||
222f1806 | 1413 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1414 | return count; |
1415 | } | |
1416 | ||
222f1806 LC |
1417 | if (!strcmp(name, "clear_counters")) { |
1418 | pktgen_clear_counters(pkt_dev); | |
1419 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1420 | return count; | |
1421 | } | |
1da177e4 LT |
1422 | |
1423 | if (!strcmp(name, "flows")) { | |
1424 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1425 | if (len < 0) { |
1426 | return len; | |
1427 | } | |
1da177e4 LT |
1428 | i += len; |
1429 | if (value > MAX_CFLOWS) | |
1430 | value = MAX_CFLOWS; | |
1431 | ||
1432 | pkt_dev->cflows = value; | |
1433 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1434 | return count; | |
1435 | } | |
1436 | ||
1437 | if (!strcmp(name, "flowlen")) { | |
1438 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1439 | if (len < 0) { |
1440 | return len; | |
1441 | } | |
1da177e4 LT |
1442 | i += len; |
1443 | pkt_dev->lflow = value; | |
1444 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1445 | return count; | |
1446 | } | |
222f1806 | 1447 | |
45b270f8 RO |
1448 | if (!strcmp(name, "queue_map_min")) { |
1449 | len = num_arg(&user_buffer[i], 5, &value); | |
1450 | if (len < 0) { | |
1451 | return len; | |
1452 | } | |
1453 | i += len; | |
1454 | pkt_dev->queue_map_min = value; | |
1455 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1456 | return count; | |
1457 | } | |
1458 | ||
1459 | if (!strcmp(name, "queue_map_max")) { | |
1460 | len = num_arg(&user_buffer[i], 5, &value); | |
1461 | if (len < 0) { | |
1462 | return len; | |
1463 | } | |
1464 | i += len; | |
1465 | pkt_dev->queue_map_max = value; | |
1466 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1467 | return count; | |
1468 | } | |
1469 | ||
ca6549af | 1470 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1471 | unsigned n, cnt; |
1472 | ||
ca6549af | 1473 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1474 | if (len < 0) |
1475 | return len; | |
ca6549af | 1476 | i += len; |
cfcabdcc | 1477 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1478 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1479 | cnt += sprintf(pg_result + cnt, |
1480 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1481 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1482 | |
1483 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1484 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1485 | pkt_dev->svlan_id = 0xffff; | |
1486 | ||
1487 | if (debug) | |
25a8b254 | 1488 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1489 | } |
1490 | return count; | |
1491 | } | |
1492 | ||
1493 | if (!strcmp(name, "vlan_id")) { | |
1494 | len = num_arg(&user_buffer[i], 4, &value); | |
1495 | if (len < 0) { | |
1496 | return len; | |
1497 | } | |
1498 | i += len; | |
1499 | if (value <= 4095) { | |
1500 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1501 | ||
1502 | if (debug) | |
25a8b254 | 1503 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1504 | |
1505 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1506 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1507 | |
1508 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1509 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1510 | } else { | |
1511 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1512 | pkt_dev->svlan_id = 0xffff; | |
1513 | ||
1514 | if (debug) | |
25a8b254 | 1515 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1516 | } |
1517 | return count; | |
1518 | } | |
1519 | ||
1520 | if (!strcmp(name, "vlan_p")) { | |
1521 | len = num_arg(&user_buffer[i], 1, &value); | |
1522 | if (len < 0) { | |
1523 | return len; | |
1524 | } | |
1525 | i += len; | |
1526 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1527 | pkt_dev->vlan_p = value; | |
1528 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1529 | } else { | |
1530 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1531 | } | |
1532 | return count; | |
1533 | } | |
1534 | ||
1535 | if (!strcmp(name, "vlan_cfi")) { | |
1536 | len = num_arg(&user_buffer[i], 1, &value); | |
1537 | if (len < 0) { | |
1538 | return len; | |
1539 | } | |
1540 | i += len; | |
1541 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1542 | pkt_dev->vlan_cfi = value; | |
1543 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1544 | } else { | |
1545 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1546 | } | |
1547 | return count; | |
1548 | } | |
1549 | ||
1550 | if (!strcmp(name, "svlan_id")) { | |
1551 | len = num_arg(&user_buffer[i], 4, &value); | |
1552 | if (len < 0) { | |
1553 | return len; | |
1554 | } | |
1555 | i += len; | |
1556 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1557 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1558 | ||
1559 | if (debug) | |
25a8b254 | 1560 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1561 | |
1562 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1563 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1564 | |
1565 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1566 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1567 | } else { | |
1568 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1569 | pkt_dev->svlan_id = 0xffff; | |
1570 | ||
1571 | if (debug) | |
25a8b254 | 1572 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1573 | } |
1574 | return count; | |
1575 | } | |
1576 | ||
1577 | if (!strcmp(name, "svlan_p")) { | |
1578 | len = num_arg(&user_buffer[i], 1, &value); | |
1579 | if (len < 0) { | |
1580 | return len; | |
1581 | } | |
1582 | i += len; | |
1583 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1584 | pkt_dev->svlan_p = value; | |
1585 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1586 | } else { | |
1587 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1588 | } | |
1589 | return count; | |
1590 | } | |
1591 | ||
1592 | if (!strcmp(name, "svlan_cfi")) { | |
1593 | len = num_arg(&user_buffer[i], 1, &value); | |
1594 | if (len < 0) { | |
1595 | return len; | |
1596 | } | |
1597 | i += len; | |
1598 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1599 | pkt_dev->svlan_cfi = value; | |
1600 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1601 | } else { | |
1602 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1603 | } | |
ca6549af SW |
1604 | return count; |
1605 | } | |
1606 | ||
1ca7768c FF |
1607 | if (!strcmp(name, "tos")) { |
1608 | __u32 tmp_value = 0; | |
1609 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1610 | if (len < 0) { | |
1611 | return len; | |
1612 | } | |
1613 | i += len; | |
1614 | if (len == 2) { | |
1615 | pkt_dev->tos = tmp_value; | |
1616 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1617 | } else { | |
1618 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1619 | } | |
1620 | return count; | |
1621 | } | |
1622 | ||
1623 | if (!strcmp(name, "traffic_class")) { | |
1624 | __u32 tmp_value = 0; | |
1625 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1626 | if (len < 0) { | |
1627 | return len; | |
1628 | } | |
1629 | i += len; | |
1630 | if (len == 2) { | |
1631 | pkt_dev->traffic_class = tmp_value; | |
1632 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1633 | } else { | |
1634 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1635 | } | |
1636 | return count; | |
1637 | } | |
1638 | ||
1da177e4 LT |
1639 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1640 | return -EINVAL; | |
1641 | } | |
1642 | ||
d50a6b56 | 1643 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1644 | { |
d50a6b56 SH |
1645 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1646 | } | |
1da177e4 | 1647 | |
9a32144e | 1648 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1649 | .owner = THIS_MODULE, |
1650 | .open = pktgen_if_open, | |
1651 | .read = seq_read, | |
1652 | .llseek = seq_lseek, | |
1653 | .write = pktgen_if_write, | |
1654 | .release = single_release, | |
d50a6b56 | 1655 | }; |
1da177e4 | 1656 | |
d50a6b56 SH |
1657 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1658 | { | |
222f1806 | 1659 | struct pktgen_thread *t = seq->private; |
c26a8016 | 1660 | struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1661 | |
1662 | BUG_ON(!t); | |
1da177e4 | 1663 | |
222f1806 | 1664 | seq_printf(seq, "Running: "); |
1da177e4 | 1665 | |
222f1806 | 1666 | if_lock(t); |
c26a8016 | 1667 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1668 | if (pkt_dev->running) |
39df232f | 1669 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 | 1670 | |
222f1806 LC |
1671 | seq_printf(seq, "\nStopped: "); |
1672 | ||
c26a8016 | 1673 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1674 | if (!pkt_dev->running) |
39df232f | 1675 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 LT |
1676 | |
1677 | if (t->result[0]) | |
d50a6b56 | 1678 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1679 | else |
d50a6b56 | 1680 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1681 | |
222f1806 | 1682 | if_unlock(t); |
1da177e4 | 1683 | |
d50a6b56 | 1684 | return 0; |
1da177e4 LT |
1685 | } |
1686 | ||
d50a6b56 | 1687 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1688 | const char __user * user_buffer, |
1689 | size_t count, loff_t * offset) | |
1da177e4 | 1690 | { |
222f1806 LC |
1691 | struct seq_file *seq = (struct seq_file *)file->private_data; |
1692 | struct pktgen_thread *t = seq->private; | |
1da177e4 LT |
1693 | int i = 0, max, len, ret; |
1694 | char name[40]; | |
222f1806 | 1695 | char *pg_result; |
d50a6b56 | 1696 | |
1da177e4 | 1697 | if (count < 1) { |
222f1806 | 1698 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1699 | return -EINVAL; |
1700 | } | |
d50a6b56 | 1701 | |
1da177e4 | 1702 | max = count - i; |
222f1806 LC |
1703 | len = count_trail_chars(&user_buffer[i], max); |
1704 | if (len < 0) | |
d50a6b56 SH |
1705 | return len; |
1706 | ||
1da177e4 | 1707 | i += len; |
d50a6b56 | 1708 | |
1da177e4 LT |
1709 | /* Read variable name */ |
1710 | ||
1711 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1712 | if (len < 0) |
d50a6b56 | 1713 | return len; |
222f1806 | 1714 | |
1da177e4 LT |
1715 | memset(name, 0, sizeof(name)); |
1716 | if (copy_from_user(name, &user_buffer[i], len)) | |
1717 | return -EFAULT; | |
1718 | i += len; | |
d50a6b56 | 1719 | |
222f1806 | 1720 | max = count - i; |
1da177e4 | 1721 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1722 | if (len < 0) |
d50a6b56 SH |
1723 | return len; |
1724 | ||
1da177e4 LT |
1725 | i += len; |
1726 | ||
d50a6b56 | 1727 | if (debug) |
25a8b254 DM |
1728 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1729 | name, (unsigned long)count); | |
1da177e4 | 1730 | |
222f1806 | 1731 | if (!t) { |
25a8b254 | 1732 | printk(KERN_ERR "pktgen: ERROR: No thread\n"); |
1da177e4 LT |
1733 | ret = -EINVAL; |
1734 | goto out; | |
1735 | } | |
1736 | ||
1737 | pg_result = &(t->result[0]); | |
1738 | ||
222f1806 LC |
1739 | if (!strcmp(name, "add_device")) { |
1740 | char f[32]; | |
1741 | memset(f, 0, 32); | |
1da177e4 | 1742 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1743 | if (len < 0) { |
1744 | ret = len; | |
1da177e4 LT |
1745 | goto out; |
1746 | } | |
222f1806 | 1747 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1748 | return -EFAULT; |
1749 | i += len; | |
6146e6a4 | 1750 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1751 | pktgen_add_device(t, f); |
6146e6a4 | 1752 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1753 | ret = count; |
1754 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1755 | goto out; |
1756 | } | |
1757 | ||
222f1806 | 1758 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1759 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1760 | t->control |= T_REMDEVALL; |
6146e6a4 | 1761 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1762 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1763 | ret = count; |
222f1806 | 1764 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1765 | goto out; |
1766 | } | |
1767 | ||
222f1806 | 1768 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1769 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1770 | ret = count; |
1da177e4 LT |
1771 | goto out; |
1772 | } | |
1773 | ||
1774 | ret = -EINVAL; | |
222f1806 | 1775 | out: |
1da177e4 LT |
1776 | return ret; |
1777 | } | |
1778 | ||
d50a6b56 | 1779 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1780 | { |
d50a6b56 | 1781 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1782 | } |
1783 | ||
9a32144e | 1784 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1785 | .owner = THIS_MODULE, |
1786 | .open = pktgen_thread_open, | |
1787 | .read = seq_read, | |
1788 | .llseek = seq_lseek, | |
1789 | .write = pktgen_thread_write, | |
1790 | .release = single_release, | |
d50a6b56 | 1791 | }; |
1da177e4 LT |
1792 | |
1793 | /* Think find or remove for NN */ | |
222f1806 | 1794 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1795 | { |
1796 | struct pktgen_thread *t; | |
1797 | struct pktgen_dev *pkt_dev = NULL; | |
1798 | ||
cdcdbe0b | 1799 | list_for_each_entry(t, &pktgen_threads, th_list) { |
1da177e4 LT |
1800 | pkt_dev = pktgen_find_dev(t, ifname); |
1801 | if (pkt_dev) { | |
222f1806 LC |
1802 | if (remove) { |
1803 | if_lock(t); | |
1804 | pkt_dev->removal_mark = 1; | |
1805 | t->control |= T_REMDEV; | |
1806 | if_unlock(t); | |
1807 | } | |
1da177e4 LT |
1808 | break; |
1809 | } | |
1da177e4 | 1810 | } |
222f1806 | 1811 | return pkt_dev; |
1da177e4 LT |
1812 | } |
1813 | ||
95ed63f7 AK |
1814 | /* |
1815 | * mark a device for removal | |
1816 | */ | |
39df232f | 1817 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1818 | { |
1819 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1820 | const int max_tries = 10, msec_per_try = 125; |
1821 | int i = 0; | |
95ed63f7 | 1822 | |
6146e6a4 | 1823 | mutex_lock(&pktgen_thread_lock); |
25c4e53a | 1824 | pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname); |
95ed63f7 | 1825 | |
222f1806 | 1826 | while (1) { |
95ed63f7 AK |
1827 | |
1828 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1829 | if (pkt_dev == NULL) |
1830 | break; /* success */ | |
95ed63f7 | 1831 | |
6146e6a4 | 1832 | mutex_unlock(&pktgen_thread_lock); |
25c4e53a SH |
1833 | pr_debug("pktgen: pktgen_mark_device waiting for %s " |
1834 | "to disappear....\n", ifname); | |
95ed63f7 | 1835 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1836 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1837 | |
1838 | if (++i >= max_tries) { | |
25a8b254 DM |
1839 | printk(KERN_ERR "pktgen_mark_device: timed out after " |
1840 | "waiting %d msec for device %s to be removed\n", | |
222f1806 | 1841 | msec_per_try * i, ifname); |
95ed63f7 AK |
1842 | break; |
1843 | } | |
1844 | ||
1845 | } | |
1846 | ||
6146e6a4 | 1847 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1848 | } |
95ed63f7 | 1849 | |
39df232f SH |
1850 | static void pktgen_change_name(struct net_device *dev) |
1851 | { | |
1852 | struct pktgen_thread *t; | |
1853 | ||
1854 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1855 | struct pktgen_dev *pkt_dev; | |
1856 | ||
1857 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1858 | if (pkt_dev->odev != dev) | |
1859 | continue; | |
1860 | ||
1861 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1862 | ||
1863 | pkt_dev->entry = create_proc_entry(dev->name, 0600, | |
1864 | pg_proc_dir); | |
1865 | if (!pkt_dev->entry) | |
1866 | printk(KERN_ERR "pktgen: can't move proc " | |
1867 | " entry for '%s'\n", dev->name); | |
1868 | break; | |
1869 | } | |
1870 | } | |
1da177e4 LT |
1871 | } |
1872 | ||
222f1806 LC |
1873 | static int pktgen_device_event(struct notifier_block *unused, |
1874 | unsigned long event, void *ptr) | |
1da177e4 | 1875 | { |
39df232f | 1876 | struct net_device *dev = ptr; |
1da177e4 | 1877 | |
721499e8 | 1878 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
1879 | return NOTIFY_DONE; |
1880 | ||
1da177e4 LT |
1881 | /* It is OK that we do not hold the group lock right now, |
1882 | * as we run under the RTNL lock. | |
1883 | */ | |
1884 | ||
1885 | switch (event) { | |
39df232f SH |
1886 | case NETDEV_CHANGENAME: |
1887 | pktgen_change_name(dev); | |
1da177e4 | 1888 | break; |
222f1806 | 1889 | |
1da177e4 | 1890 | case NETDEV_UNREGISTER: |
222f1806 | 1891 | pktgen_mark_device(dev->name); |
1da177e4 | 1892 | break; |
3ff50b79 | 1893 | } |
1da177e4 LT |
1894 | |
1895 | return NOTIFY_DONE; | |
1896 | } | |
1897 | ||
1898 | /* Associate pktgen_dev with a device. */ | |
1899 | ||
39df232f | 1900 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 1901 | { |
1da177e4 | 1902 | struct net_device *odev; |
39df232f | 1903 | int err; |
1da177e4 LT |
1904 | |
1905 | /* Clean old setups */ | |
1da177e4 LT |
1906 | if (pkt_dev->odev) { |
1907 | dev_put(pkt_dev->odev); | |
222f1806 LC |
1908 | pkt_dev->odev = NULL; |
1909 | } | |
1da177e4 | 1910 | |
881d966b | 1911 | odev = dev_get_by_name(&init_net, ifname); |
1da177e4 | 1912 | if (!odev) { |
25a8b254 | 1913 | printk(KERN_ERR "pktgen: no such netdevice: \"%s\"\n", ifname); |
39df232f | 1914 | return -ENODEV; |
1da177e4 | 1915 | } |
39df232f | 1916 | |
1da177e4 | 1917 | if (odev->type != ARPHRD_ETHER) { |
25a8b254 | 1918 | printk(KERN_ERR "pktgen: not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
1919 | err = -EINVAL; |
1920 | } else if (!netif_running(odev)) { | |
25a8b254 | 1921 | printk(KERN_ERR "pktgen: device is down: \"%s\"\n", ifname); |
39df232f SH |
1922 | err = -ENETDOWN; |
1923 | } else { | |
1924 | pkt_dev->odev = odev; | |
1925 | return 0; | |
1da177e4 | 1926 | } |
1da177e4 | 1927 | |
1da177e4 | 1928 | dev_put(odev); |
39df232f | 1929 | return err; |
1da177e4 LT |
1930 | } |
1931 | ||
1932 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
1933 | * structure to have the right information to create/send packets | |
1934 | */ | |
1935 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
1936 | { | |
222f1806 | 1937 | if (!pkt_dev->odev) { |
25a8b254 DM |
1938 | printk(KERN_ERR "pktgen: ERROR: pkt_dev->odev == NULL in " |
1939 | "setup_inject.\n"); | |
222f1806 LC |
1940 | sprintf(pkt_dev->result, |
1941 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
1942 | return; | |
1943 | } | |
1944 | ||
1945 | /* Default to the interface's mac if not explicitly set. */ | |
1da177e4 | 1946 | |
f404e9a6 | 1947 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 1948 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 1949 | |
222f1806 | 1950 | /* Set up Dest MAC */ |
f404e9a6 | 1951 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 1952 | |
222f1806 LC |
1953 | /* Set up pkt size */ |
1954 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
1955 | ||
1956 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 1957 | /* |
4ec93edb | 1958 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
1959 | * gets exported |
1960 | */ | |
1961 | ||
1962 | #ifdef NOTNOW | |
222f1806 | 1963 | int i, set = 0, err = 1; |
1da177e4 LT |
1964 | struct inet6_dev *idev; |
1965 | ||
222f1806 LC |
1966 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
1967 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
1968 | set = 1; |
1969 | break; | |
1970 | } | |
1971 | ||
222f1806 LC |
1972 | if (!set) { |
1973 | ||
1da177e4 LT |
1974 | /* |
1975 | * Use linklevel address if unconfigured. | |
1976 | * | |
1977 | * use ipv6_get_lladdr if/when it's get exported | |
1978 | */ | |
1979 | ||
8814c4b5 | 1980 | rcu_read_lock(); |
1da177e4 LT |
1981 | if ((idev = __in6_dev_get(pkt_dev->odev)) != NULL) { |
1982 | struct inet6_ifaddr *ifp; | |
1983 | ||
1984 | read_lock_bh(&idev->lock); | |
222f1806 LC |
1985 | for (ifp = idev->addr_list; ifp; |
1986 | ifp = ifp->if_next) { | |
1987 | if (ifp->scope == IFA_LINK | |
1988 | && !(ifp-> | |
1989 | flags & IFA_F_TENTATIVE)) { | |
1990 | ipv6_addr_copy(&pkt_dev-> | |
1991 | cur_in6_saddr, | |
1992 | &ifp->addr); | |
1da177e4 LT |
1993 | err = 0; |
1994 | break; | |
1995 | } | |
1996 | } | |
1997 | read_unlock_bh(&idev->lock); | |
1998 | } | |
8814c4b5 | 1999 | rcu_read_unlock(); |
222f1806 | 2000 | if (err) |
25a8b254 DM |
2001 | printk(KERN_ERR "pktgen: ERROR: IPv6 link " |
2002 | "address not availble.\n"); | |
1da177e4 LT |
2003 | } |
2004 | #endif | |
222f1806 | 2005 | } else { |
1da177e4 LT |
2006 | pkt_dev->saddr_min = 0; |
2007 | pkt_dev->saddr_max = 0; | |
2008 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2009 | |
2010 | struct in_device *in_dev; | |
1da177e4 LT |
2011 | |
2012 | rcu_read_lock(); | |
e5ed6399 | 2013 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2014 | if (in_dev) { |
2015 | if (in_dev->ifa_list) { | |
222f1806 LC |
2016 | pkt_dev->saddr_min = |
2017 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2018 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2019 | } | |
1da177e4 LT |
2020 | } |
2021 | rcu_read_unlock(); | |
222f1806 | 2022 | } else { |
1da177e4 LT |
2023 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2024 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2025 | } | |
2026 | ||
2027 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2028 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2029 | } | |
222f1806 LC |
2030 | /* Initialize current values. */ |
2031 | pkt_dev->cur_dst_mac_offset = 0; | |
2032 | pkt_dev->cur_src_mac_offset = 0; | |
2033 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2034 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2035 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2036 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2037 | pkt_dev->nflows = 0; |
2038 | } | |
2039 | ||
2040 | static void spin(struct pktgen_dev *pkt_dev, __u64 spin_until_us) | |
2041 | { | |
2042 | __u64 start; | |
2043 | __u64 now; | |
2044 | ||
2045 | start = now = getCurUs(); | |
1da177e4 | 2046 | while (now < spin_until_us) { |
b4099fab | 2047 | /* TODO: optimize sleeping behavior */ |
222f1806 | 2048 | if (spin_until_us - now > jiffies_to_usecs(1) + 1) |
121caf57 NA |
2049 | schedule_timeout_interruptible(1); |
2050 | else if (spin_until_us - now > 100) { | |
1da177e4 LT |
2051 | if (!pkt_dev->running) |
2052 | return; | |
2053 | if (need_resched()) | |
2054 | schedule(); | |
2055 | } | |
2056 | ||
2057 | now = getCurUs(); | |
2058 | } | |
2059 | ||
2060 | pkt_dev->idle_acc += now - start; | |
2061 | } | |
2062 | ||
16dab72f JHS |
2063 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2064 | { | |
a553e4a6 | 2065 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2066 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2067 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2068 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2069 | } | |
2070 | ||
007a531b JHS |
2071 | static inline int f_seen(struct pktgen_dev *pkt_dev, int flow) |
2072 | { | |
2073 | ||
2074 | if (pkt_dev->flows[flow].flags & F_INIT) | |
2075 | return 1; | |
2076 | else | |
2077 | return 0; | |
2078 | } | |
2079 | ||
2080 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2081 | { | |
2082 | int flow = pkt_dev->curfl; | |
2083 | ||
2084 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2085 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2086 | /* reset time */ | |
2087 | pkt_dev->flows[flow].count = 0; | |
1211a645 | 2088 | pkt_dev->flows[flow].flags = 0; |
007a531b JHS |
2089 | pkt_dev->curfl += 1; |
2090 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2091 | pkt_dev->curfl = 0; /*reset */ | |
2092 | } | |
2093 | } else { | |
2094 | flow = random32() % pkt_dev->cflows; | |
1211a645 | 2095 | pkt_dev->curfl = flow; |
007a531b | 2096 | |
1211a645 | 2097 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) { |
007a531b | 2098 | pkt_dev->flows[flow].count = 0; |
1211a645 RO |
2099 | pkt_dev->flows[flow].flags = 0; |
2100 | } | |
007a531b JHS |
2101 | } |
2102 | ||
2103 | return pkt_dev->curfl; | |
2104 | } | |
2105 | ||
a553e4a6 JHS |
2106 | |
2107 | #ifdef CONFIG_XFRM | |
2108 | /* If there was already an IPSEC SA, we keep it as is, else | |
2109 | * we go look for it ... | |
2110 | */ | |
fea1ab0f | 2111 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2112 | { |
2113 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2114 | if (!x) { | |
2115 | /*slow path: we dont already have xfrm_state*/ | |
2116 | x = xfrm_stateonly_find((xfrm_address_t *)&pkt_dev->cur_daddr, | |
2117 | (xfrm_address_t *)&pkt_dev->cur_saddr, | |
2118 | AF_INET, | |
2119 | pkt_dev->ipsmode, | |
2120 | pkt_dev->ipsproto, 0); | |
2121 | if (x) { | |
2122 | pkt_dev->flows[flow].x = x; | |
2123 | set_pkt_overhead(pkt_dev); | |
2124 | pkt_dev->pkt_overhead+=x->props.header_len; | |
2125 | } | |
2126 | ||
2127 | } | |
2128 | } | |
2129 | #endif | |
fd2ea0a7 DM |
2130 | static void set_cur_queue_map(struct pktgen_dev *pkt_dev) |
2131 | { | |
2132 | if (pkt_dev->queue_map_min < pkt_dev->queue_map_max) { | |
2133 | __u16 t; | |
2134 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2135 | t = random32() % | |
2136 | (pkt_dev->queue_map_max - | |
2137 | pkt_dev->queue_map_min + 1) | |
2138 | + pkt_dev->queue_map_min; | |
2139 | } else { | |
2140 | t = pkt_dev->cur_queue_map + 1; | |
2141 | if (t > pkt_dev->queue_map_max) | |
2142 | t = pkt_dev->queue_map_min; | |
2143 | } | |
2144 | pkt_dev->cur_queue_map = t; | |
2145 | } | |
2146 | } | |
2147 | ||
1da177e4 LT |
2148 | /* Increment/randomize headers according to flags and current values |
2149 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2150 | */ | |
222f1806 LC |
2151 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2152 | { | |
2153 | __u32 imn; | |
2154 | __u32 imx; | |
2155 | int flow = 0; | |
1da177e4 | 2156 | |
007a531b JHS |
2157 | if (pkt_dev->cflows) |
2158 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2159 | |
2160 | /* Deal with source MAC */ | |
222f1806 LC |
2161 | if (pkt_dev->src_mac_count > 1) { |
2162 | __u32 mc; | |
2163 | __u32 tmp; | |
2164 | ||
2165 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2166 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2167 | else { |
2168 | mc = pkt_dev->cur_src_mac_offset++; | |
ff2a79a5 | 2169 | if (pkt_dev->cur_src_mac_offset >= |
222f1806 LC |
2170 | pkt_dev->src_mac_count) |
2171 | pkt_dev->cur_src_mac_offset = 0; | |
2172 | } | |
2173 | ||
2174 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2175 | pkt_dev->hh[11] = tmp; | |
2176 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2177 | pkt_dev->hh[10] = tmp; | |
2178 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2179 | pkt_dev->hh[9] = tmp; | |
2180 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2181 | pkt_dev->hh[8] = tmp; | |
2182 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2183 | pkt_dev->hh[7] = tmp; | |
2184 | } | |
2185 | ||
2186 | /* Deal with Destination MAC */ | |
2187 | if (pkt_dev->dst_mac_count > 1) { | |
2188 | __u32 mc; | |
2189 | __u32 tmp; | |
2190 | ||
2191 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2192 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2193 | |
2194 | else { | |
2195 | mc = pkt_dev->cur_dst_mac_offset++; | |
ff2a79a5 | 2196 | if (pkt_dev->cur_dst_mac_offset >= |
222f1806 LC |
2197 | pkt_dev->dst_mac_count) { |
2198 | pkt_dev->cur_dst_mac_offset = 0; | |
2199 | } | |
2200 | } | |
2201 | ||
2202 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2203 | pkt_dev->hh[5] = tmp; | |
2204 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2205 | pkt_dev->hh[4] = tmp; | |
2206 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2207 | pkt_dev->hh[3] = tmp; | |
2208 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2209 | pkt_dev->hh[2] = tmp; | |
2210 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2211 | pkt_dev->hh[1] = tmp; | |
2212 | } | |
2213 | ||
ca6549af SW |
2214 | if (pkt_dev->flags & F_MPLS_RND) { |
2215 | unsigned i; | |
e71a4783 | 2216 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2217 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2218 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2219 | ((__force __be32)random32() & |
ca6549af SW |
2220 | htonl(0x000fffff)); |
2221 | } | |
2222 | ||
34954ddc | 2223 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2224 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2225 | } |
2226 | ||
2227 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2228 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2229 | } |
2230 | ||
222f1806 LC |
2231 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2232 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2233 | pkt_dev->cur_udp_src = random32() % |
2234 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2235 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2236 | |
2237 | else { | |
1da177e4 LT |
2238 | pkt_dev->cur_udp_src++; |
2239 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2240 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2241 | } |
2242 | } | |
2243 | ||
2244 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2245 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2246 | pkt_dev->cur_udp_dst = random32() % |
2247 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2248 | + pkt_dev->udp_dst_min; | |
222f1806 | 2249 | } else { |
1da177e4 | 2250 | pkt_dev->cur_udp_dst++; |
222f1806 | 2251 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2252 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2253 | } |
2254 | } | |
1da177e4 LT |
2255 | |
2256 | if (!(pkt_dev->flags & F_IPV6)) { | |
2257 | ||
222f1806 LC |
2258 | if ((imn = ntohl(pkt_dev->saddr_min)) < (imx = |
2259 | ntohl(pkt_dev-> | |
2260 | saddr_max))) { | |
1da177e4 | 2261 | __u32 t; |
222f1806 | 2262 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2263 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2264 | else { |
2265 | t = ntohl(pkt_dev->cur_saddr); | |
2266 | t++; | |
2267 | if (t > imx) { | |
2268 | t = imn; | |
2269 | } | |
2270 | } | |
2271 | pkt_dev->cur_saddr = htonl(t); | |
2272 | } | |
222f1806 | 2273 | |
007a531b | 2274 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2275 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2276 | } else { | |
252e3346 AV |
2277 | imn = ntohl(pkt_dev->daddr_min); |
2278 | imx = ntohl(pkt_dev->daddr_max); | |
2279 | if (imn < imx) { | |
1da177e4 | 2280 | __u32 t; |
252e3346 | 2281 | __be32 s; |
1da177e4 LT |
2282 | if (pkt_dev->flags & F_IPDST_RND) { |
2283 | ||
5fa6fc76 | 2284 | t = random32() % (imx - imn) + imn; |
252e3346 | 2285 | s = htonl(t); |
1da177e4 | 2286 | |
21cf2253 JP |
2287 | while (ipv4_is_loopback(s) || |
2288 | ipv4_is_multicast(s) || | |
1e637c74 | 2289 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2290 | ipv4_is_zeronet(s) || |
2291 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2292 | t = random32() % (imx - imn) + imn; |
252e3346 | 2293 | s = htonl(t); |
1da177e4 | 2294 | } |
252e3346 AV |
2295 | pkt_dev->cur_daddr = s; |
2296 | } else { | |
1da177e4 LT |
2297 | t = ntohl(pkt_dev->cur_daddr); |
2298 | t++; | |
2299 | if (t > imx) { | |
2300 | t = imn; | |
2301 | } | |
2302 | pkt_dev->cur_daddr = htonl(t); | |
2303 | } | |
2304 | } | |
222f1806 | 2305 | if (pkt_dev->cflows) { |
007a531b | 2306 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2307 | pkt_dev->flows[flow].cur_daddr = |
2308 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2309 | #ifdef CONFIG_XFRM |
2310 | if (pkt_dev->flags & F_IPSEC_ON) | |
2311 | get_ipsec_sa(pkt_dev, flow); | |
2312 | #endif | |
1da177e4 LT |
2313 | pkt_dev->nflows++; |
2314 | } | |
2315 | } | |
222f1806 LC |
2316 | } else { /* IPV6 * */ |
2317 | ||
2318 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2319 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2320 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2321 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2322 | else { |
2323 | int i; | |
2324 | ||
2325 | /* Only random destinations yet */ | |
2326 | ||
222f1806 | 2327 | for (i = 0; i < 4; i++) { |
1da177e4 | 2328 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2329 | (((__force __be32)random32() | |
222f1806 LC |
2330 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2331 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2332 | } |
222f1806 | 2333 | } |
1da177e4 LT |
2334 | } |
2335 | ||
222f1806 LC |
2336 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2337 | __u32 t; | |
2338 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2339 | t = random32() % |
2340 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2341 | + pkt_dev->min_pkt_size; | |
222f1806 | 2342 | } else { |
1da177e4 | 2343 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2344 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2345 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2346 | } |
2347 | pkt_dev->cur_pkt_size = t; | |
2348 | } | |
1da177e4 | 2349 | |
fd2ea0a7 | 2350 | set_cur_queue_map(pkt_dev); |
45b270f8 | 2351 | |
1da177e4 LT |
2352 | pkt_dev->flows[flow].count++; |
2353 | } | |
2354 | ||
a553e4a6 JHS |
2355 | |
2356 | #ifdef CONFIG_XFRM | |
2357 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2358 | { | |
2359 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2360 | int err = 0; | |
2361 | struct iphdr *iph; | |
2362 | ||
2363 | if (!x) | |
2364 | return 0; | |
2365 | /* XXX: we dont support tunnel mode for now until | |
2366 | * we resolve the dst issue */ | |
2367 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2368 | return 0; | |
2369 | ||
2370 | spin_lock(&x->lock); | |
2371 | iph = ip_hdr(skb); | |
2372 | ||
13996378 | 2373 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2374 | if (err) |
2375 | goto error; | |
2376 | err = x->type->output(x, skb); | |
2377 | if (err) | |
2378 | goto error; | |
2379 | ||
2380 | x->curlft.bytes +=skb->len; | |
2381 | x->curlft.packets++; | |
a553e4a6 JHS |
2382 | error: |
2383 | spin_unlock(&x->lock); | |
2384 | return err; | |
2385 | } | |
2386 | ||
2387 | static inline void free_SAs(struct pktgen_dev *pkt_dev) | |
2388 | { | |
2389 | if (pkt_dev->cflows) { | |
2390 | /* let go of the SAs if we have them */ | |
2391 | int i = 0; | |
2392 | for (; i < pkt_dev->nflows; i++){ | |
2393 | struct xfrm_state *x = pkt_dev->flows[i].x; | |
2394 | if (x) { | |
2395 | xfrm_state_put(x); | |
2396 | pkt_dev->flows[i].x = NULL; | |
2397 | } | |
2398 | } | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | static inline int process_ipsec(struct pktgen_dev *pkt_dev, | |
2403 | struct sk_buff *skb, __be16 protocol) | |
2404 | { | |
2405 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2406 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2407 | int nhead = 0; | |
2408 | if (x) { | |
2409 | int ret; | |
2410 | __u8 *eth; | |
2411 | nhead = x->props.header_len - skb_headroom(skb); | |
2412 | if (nhead >0) { | |
2413 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); | |
2414 | if (ret < 0) { | |
25a8b254 DM |
2415 | printk(KERN_ERR "Error expanding " |
2416 | "ipsec packet %d\n",ret); | |
a553e4a6 JHS |
2417 | return 0; |
2418 | } | |
2419 | } | |
2420 | ||
2421 | /* ipsec is not expecting ll header */ | |
2422 | skb_pull(skb, ETH_HLEN); | |
2423 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2424 | if (ret) { | |
25a8b254 DM |
2425 | printk(KERN_ERR "Error creating ipsec " |
2426 | "packet %d\n",ret); | |
a553e4a6 JHS |
2427 | kfree_skb(skb); |
2428 | return 0; | |
2429 | } | |
2430 | /* restore ll */ | |
2431 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2432 | memcpy(eth, pkt_dev->hh, 12); | |
2433 | *(u16 *) & eth[12] = protocol; | |
2434 | } | |
2435 | } | |
2436 | return 1; | |
2437 | } | |
2438 | #endif | |
2439 | ||
ca6549af SW |
2440 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2441 | { | |
2442 | unsigned i; | |
e71a4783 | 2443 | for (i = 0; i < pkt_dev->nr_labels; i++) { |
ca6549af SW |
2444 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
2445 | } | |
2446 | mpls--; | |
2447 | *mpls |= MPLS_STACK_BOTTOM; | |
2448 | } | |
2449 | ||
0f37c605 AV |
2450 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2451 | unsigned int prio) | |
2452 | { | |
2453 | return htons(id | (cfi << 12) | (prio << 13)); | |
2454 | } | |
2455 | ||
222f1806 LC |
2456 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2457 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2458 | { |
2459 | struct sk_buff *skb = NULL; | |
2460 | __u8 *eth; | |
2461 | struct udphdr *udph; | |
2462 | int datalen, iplen; | |
2463 | struct iphdr *iph; | |
222f1806 | 2464 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2465 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2466 | __be32 *mpls; |
34954ddc FF |
2467 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2468 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2469 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2470 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2471 | u16 queue_map; |
ca6549af SW |
2472 | |
2473 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2474 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2475 | |
34954ddc | 2476 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2477 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2478 | |
64053bee RO |
2479 | /* Update any of the values, used when we're incrementing various |
2480 | * fields. | |
2481 | */ | |
fd2ea0a7 | 2482 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2483 | mod_cur_headers(pkt_dev); |
2484 | ||
7ac5459e | 2485 | datalen = (odev->hard_header_len + 16) & ~0xf; |
ca6549af | 2486 | skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + datalen + |
16dab72f | 2487 | pkt_dev->pkt_overhead, GFP_ATOMIC); |
1da177e4 LT |
2488 | if (!skb) { |
2489 | sprintf(pkt_dev->result, "No memory"); | |
2490 | return NULL; | |
2491 | } | |
2492 | ||
7ac5459e | 2493 | skb_reserve(skb, datalen); |
1da177e4 LT |
2494 | |
2495 | /* Reserve for ethernet and IP header */ | |
2496 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2497 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2498 | if (pkt_dev->nr_labels) | |
2499 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2500 | |
2501 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2502 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2503 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2504 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2505 | pkt_dev->svlan_cfi, | |
2506 | pkt_dev->svlan_p); | |
34954ddc | 2507 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2508 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2509 | } |
2510 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2511 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2512 | pkt_dev->vlan_cfi, | |
2513 | pkt_dev->vlan_p); | |
34954ddc | 2514 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2515 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2516 | } |
2517 | ||
27a884dc | 2518 | skb->network_header = skb->tail; |
b0e380b1 | 2519 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2520 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2521 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2522 | iph = ip_hdr(skb); |
2523 | udph = udp_hdr(skb); | |
1da177e4 | 2524 | |
1da177e4 | 2525 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2526 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2527 | |
ca6549af SW |
2528 | /* Eth + IPh + UDPh + mpls */ |
2529 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2530 | pkt_dev->pkt_overhead; |
222f1806 | 2531 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2532 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2533 | |
1da177e4 LT |
2534 | udph->source = htons(pkt_dev->cur_udp_src); |
2535 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2536 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2537 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2538 | |
2539 | iph->ihl = 5; | |
2540 | iph->version = 4; | |
2541 | iph->ttl = 32; | |
1ca7768c | 2542 | iph->tos = pkt_dev->tos; |
222f1806 | 2543 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2544 | iph->saddr = pkt_dev->cur_saddr; |
2545 | iph->daddr = pkt_dev->cur_daddr; | |
2546 | iph->frag_off = 0; | |
2547 | iplen = 20 + 8 + datalen; | |
2548 | iph->tot_len = htons(iplen); | |
2549 | iph->check = 0; | |
222f1806 | 2550 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2551 | skb->protocol = protocol; |
b0e380b1 | 2552 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2553 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2554 | skb->dev = odev; |
2555 | skb->pkt_type = PACKET_HOST; | |
2556 | ||
222f1806 LC |
2557 | if (pkt_dev->nfrags <= 0) |
2558 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2559 | else { |
2560 | int frags = pkt_dev->nfrags; | |
2561 | int i; | |
2562 | ||
222f1806 LC |
2563 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2564 | ||
1da177e4 LT |
2565 | if (frags > MAX_SKB_FRAGS) |
2566 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2567 | if (datalen > frags * PAGE_SIZE) { |
2568 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2569 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2570 | } |
2571 | ||
2572 | i = 0; | |
2573 | while (datalen > 0) { | |
2574 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2575 | skb_shinfo(skb)->frags[i].page = page; | |
2576 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2577 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2578 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2579 | datalen -= skb_shinfo(skb)->frags[i].size; |
2580 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2581 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2582 | i++; | |
2583 | skb_shinfo(skb)->nr_frags = i; | |
2584 | } | |
2585 | ||
2586 | while (i < frags) { | |
2587 | int rem; | |
2588 | ||
2589 | if (i == 0) | |
2590 | break; | |
2591 | ||
2592 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2593 | if (rem == 0) | |
2594 | break; | |
2595 | ||
2596 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2597 | ||
222f1806 LC |
2598 | skb_shinfo(skb)->frags[i] = |
2599 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2600 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2601 | skb_shinfo(skb)->frags[i].page = |
2602 | skb_shinfo(skb)->frags[i - 1].page; | |
2603 | skb_shinfo(skb)->frags[i].page_offset += | |
2604 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2605 | skb_shinfo(skb)->frags[i].size = rem; |
2606 | i++; | |
2607 | skb_shinfo(skb)->nr_frags = i; | |
2608 | } | |
2609 | } | |
2610 | ||
222f1806 LC |
2611 | /* Stamp the time, and sequence number, convert them to network byte order */ |
2612 | ||
2613 | if (pgh) { | |
2614 | struct timeval timestamp; | |
2615 | ||
2616 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2617 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2618 | ||
2619 | do_gettimeofday(×tamp); | |
2620 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2621 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2622 | } | |
1da177e4 | 2623 | |
a553e4a6 JHS |
2624 | #ifdef CONFIG_XFRM |
2625 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2626 | return NULL; | |
2627 | #endif | |
2628 | ||
1da177e4 LT |
2629 | return skb; |
2630 | } | |
2631 | ||
2632 | /* | |
4ec93edb | 2633 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2634 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2635 | * | |
4ec93edb | 2636 | * Slightly modified for kernel. |
1da177e4 LT |
2637 | * Should be candidate for net/ipv4/utils.c |
2638 | * --ro | |
2639 | */ | |
2640 | ||
222f1806 | 2641 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2642 | { |
2643 | unsigned int i; | |
222f1806 | 2644 | unsigned int len = 0; |
1da177e4 LT |
2645 | unsigned long u; |
2646 | char suffix[16]; | |
222f1806 LC |
2647 | unsigned int prefixlen = 0; |
2648 | unsigned int suffixlen = 0; | |
252e3346 | 2649 | __be32 tmp; |
cfcabdcc | 2650 | char *pos; |
1da177e4 | 2651 | |
222f1806 LC |
2652 | for (i = 0; i < 16; i++) |
2653 | ip[i] = 0; | |
1da177e4 LT |
2654 | |
2655 | for (;;) { | |
2656 | if (*s == ':') { | |
2657 | len++; | |
222f1806 LC |
2658 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2659 | s += 2; | |
1da177e4 LT |
2660 | len++; |
2661 | break; | |
2662 | } | |
2663 | s++; | |
2664 | } | |
1da177e4 | 2665 | |
cfcabdcc SH |
2666 | u = simple_strtoul(s, &pos, 16); |
2667 | i = pos - s; | |
222f1806 LC |
2668 | if (!i) |
2669 | return 0; | |
2670 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2671 | |
2672 | /* the last 4 bytes may be written as IPv4 address */ | |
2673 | ||
2674 | tmp = in_aton(s); | |
222f1806 LC |
2675 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2676 | return i + len; | |
1da177e4 LT |
2677 | } |
2678 | ip[prefixlen++] = (u >> 8); | |
2679 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2680 | s += i; |
2681 | len += i; | |
2682 | if (prefixlen == 16) | |
1da177e4 LT |
2683 | return len; |
2684 | } | |
2685 | ||
2686 | /* part 2, after "::" */ | |
2687 | for (;;) { | |
2688 | if (*s == ':') { | |
222f1806 | 2689 | if (suffixlen == 0) |
1da177e4 LT |
2690 | break; |
2691 | s++; | |
2692 | len++; | |
222f1806 | 2693 | } else if (suffixlen != 0) |
1da177e4 | 2694 | break; |
cfcabdcc SH |
2695 | |
2696 | u = simple_strtol(s, &pos, 16); | |
2697 | i = pos - s; | |
1da177e4 | 2698 | if (!i) { |
222f1806 LC |
2699 | if (*s) |
2700 | len--; | |
1da177e4 LT |
2701 | break; |
2702 | } | |
222f1806 | 2703 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2704 | tmp = in_aton(s); |
222f1806 LC |
2705 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2706 | sizeof(tmp)); | |
2707 | suffixlen += 4; | |
2708 | len += strlen(s); | |
1da177e4 LT |
2709 | break; |
2710 | } | |
2711 | suffix[suffixlen++] = (u >> 8); | |
2712 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2713 | s += i; |
2714 | len += i; | |
2715 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2716 | break; |
2717 | } | |
222f1806 LC |
2718 | for (i = 0; i < suffixlen; i++) |
2719 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2720 | return len; |
2721 | } | |
2722 | ||
222f1806 LC |
2723 | static char tohex(char hexdigit) |
2724 | { | |
2725 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2726 | } |
2727 | ||
222f1806 LC |
2728 | static int fmt_xlong(char *s, unsigned int i) |
2729 | { | |
2730 | char *bak = s; | |
2731 | *s = tohex((i >> 12) & 0xf); | |
2732 | if (s != bak || *s != '0') | |
2733 | ++s; | |
2734 | *s = tohex((i >> 8) & 0xf); | |
2735 | if (s != bak || *s != '0') | |
2736 | ++s; | |
2737 | *s = tohex((i >> 4) & 0xf); | |
2738 | if (s != bak || *s != '0') | |
2739 | ++s; | |
2740 | *s = tohex(i & 0xf); | |
2741 | return s - bak + 1; | |
1da177e4 LT |
2742 | } |
2743 | ||
222f1806 LC |
2744 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2745 | { | |
1da177e4 LT |
2746 | unsigned int len; |
2747 | unsigned int i; | |
2748 | unsigned int temp; | |
2749 | unsigned int compressing; | |
2750 | int j; | |
2751 | ||
222f1806 LC |
2752 | len = 0; |
2753 | compressing = 0; | |
2754 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2755 | |
2756 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2757 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2758 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2759 | temp = strlen(s); | |
2760 | return len + temp; | |
1da177e4 LT |
2761 | } |
2762 | #endif | |
222f1806 LC |
2763 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2764 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2765 | if (temp == 0) { |
2766 | if (!compressing) { | |
222f1806 LC |
2767 | compressing = 1; |
2768 | if (j == 0) { | |
2769 | *s++ = ':'; | |
2770 | ++len; | |
1da177e4 LT |
2771 | } |
2772 | } | |
2773 | } else { | |
2774 | if (compressing) { | |
222f1806 LC |
2775 | compressing = 0; |
2776 | *s++ = ':'; | |
2777 | ++len; | |
1da177e4 | 2778 | } |
222f1806 LC |
2779 | i = fmt_xlong(s, temp); |
2780 | len += i; | |
2781 | s += i; | |
2782 | if (j < 14) { | |
1da177e4 LT |
2783 | *s++ = ':'; |
2784 | ++len; | |
2785 | } | |
2786 | } | |
2787 | } | |
2788 | if (compressing) { | |
222f1806 LC |
2789 | *s++ = ':'; |
2790 | ++len; | |
1da177e4 | 2791 | } |
222f1806 | 2792 | *s = 0; |
1da177e4 LT |
2793 | return len; |
2794 | } | |
2795 | ||
222f1806 LC |
2796 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2797 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2798 | { |
2799 | struct sk_buff *skb = NULL; | |
2800 | __u8 *eth; | |
2801 | struct udphdr *udph; | |
2802 | int datalen; | |
2803 | struct ipv6hdr *iph; | |
222f1806 | 2804 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2805 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2806 | __be32 *mpls; |
34954ddc FF |
2807 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2808 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2809 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2810 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2811 | u16 queue_map; |
ca6549af SW |
2812 | |
2813 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2814 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2815 | |
34954ddc | 2816 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2817 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2818 | |
64053bee RO |
2819 | /* Update any of the values, used when we're incrementing various |
2820 | * fields. | |
2821 | */ | |
fd2ea0a7 | 2822 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2823 | mod_cur_headers(pkt_dev); |
2824 | ||
ca6549af | 2825 | skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16 + |
16dab72f | 2826 | pkt_dev->pkt_overhead, GFP_ATOMIC); |
1da177e4 LT |
2827 | if (!skb) { |
2828 | sprintf(pkt_dev->result, "No memory"); | |
2829 | return NULL; | |
2830 | } | |
2831 | ||
2832 | skb_reserve(skb, 16); | |
2833 | ||
2834 | /* Reserve for ethernet and IP header */ | |
2835 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2836 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2837 | if (pkt_dev->nr_labels) | |
2838 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2839 | |
2840 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2841 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2842 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2843 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2844 | pkt_dev->svlan_cfi, | |
2845 | pkt_dev->svlan_p); | |
34954ddc | 2846 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2847 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2848 | } |
2849 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2850 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2851 | pkt_dev->vlan_cfi, | |
2852 | pkt_dev->vlan_p); | |
34954ddc | 2853 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2854 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
2855 | } |
2856 | ||
27a884dc | 2857 | skb->network_header = skb->tail; |
b0e380b1 | 2858 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 2859 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2860 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2861 | iph = ipv6_hdr(skb); |
2862 | udph = udp_hdr(skb); | |
1da177e4 | 2863 | |
1da177e4 | 2864 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2865 | *(__be16 *) & eth[12] = protocol; |
64053bee | 2866 | |
ca6549af SW |
2867 | /* Eth + IPh + UDPh + mpls */ |
2868 | datalen = pkt_dev->cur_pkt_size - 14 - | |
2869 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 2870 | pkt_dev->pkt_overhead; |
1da177e4 | 2871 | |
222f1806 | 2872 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
2873 | datalen = sizeof(struct pktgen_hdr); |
2874 | if (net_ratelimit()) | |
222f1806 LC |
2875 | printk(KERN_INFO "pktgen: increased datalen to %d\n", |
2876 | datalen); | |
1da177e4 LT |
2877 | } |
2878 | ||
2879 | udph->source = htons(pkt_dev->cur_udp_src); | |
2880 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2881 | udph->len = htons(datalen + sizeof(struct udphdr)); |
2882 | udph->check = 0; /* No checksum */ | |
1da177e4 | 2883 | |
d5f1ce9a | 2884 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 2885 | |
1ca7768c FF |
2886 | if (pkt_dev->traffic_class) { |
2887 | /* Version + traffic class + flow (0) */ | |
252e3346 | 2888 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
2889 | } |
2890 | ||
1da177e4 LT |
2891 | iph->hop_limit = 32; |
2892 | ||
2893 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
2894 | iph->nexthdr = IPPROTO_UDP; | |
2895 | ||
2896 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
2897 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
2898 | ||
b0e380b1 | 2899 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2900 | pkt_dev->pkt_overhead); |
ca6549af | 2901 | skb->protocol = protocol; |
1da177e4 LT |
2902 | skb->dev = odev; |
2903 | skb->pkt_type = PACKET_HOST; | |
2904 | ||
222f1806 LC |
2905 | if (pkt_dev->nfrags <= 0) |
2906 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2907 | else { |
2908 | int frags = pkt_dev->nfrags; | |
2909 | int i; | |
2910 | ||
222f1806 LC |
2911 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2912 | ||
1da177e4 LT |
2913 | if (frags > MAX_SKB_FRAGS) |
2914 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2915 | if (datalen > frags * PAGE_SIZE) { |
2916 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2917 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2918 | } |
2919 | ||
2920 | i = 0; | |
2921 | while (datalen > 0) { | |
2922 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2923 | skb_shinfo(skb)->frags[i].page = page; | |
2924 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2925 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2926 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2927 | datalen -= skb_shinfo(skb)->frags[i].size; |
2928 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2929 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2930 | i++; | |
2931 | skb_shinfo(skb)->nr_frags = i; | |
2932 | } | |
2933 | ||
2934 | while (i < frags) { | |
2935 | int rem; | |
2936 | ||
2937 | if (i == 0) | |
2938 | break; | |
2939 | ||
2940 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2941 | if (rem == 0) | |
2942 | break; | |
2943 | ||
2944 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2945 | ||
222f1806 LC |
2946 | skb_shinfo(skb)->frags[i] = |
2947 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2948 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2949 | skb_shinfo(skb)->frags[i].page = |
2950 | skb_shinfo(skb)->frags[i - 1].page; | |
2951 | skb_shinfo(skb)->frags[i].page_offset += | |
2952 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2953 | skb_shinfo(skb)->frags[i].size = rem; |
2954 | i++; | |
2955 | skb_shinfo(skb)->nr_frags = i; | |
2956 | } | |
2957 | } | |
2958 | ||
222f1806 | 2959 | /* Stamp the time, and sequence number, convert them to network byte order */ |
1da177e4 | 2960 | /* should we update cloned packets too ? */ |
222f1806 LC |
2961 | if (pgh) { |
2962 | struct timeval timestamp; | |
2963 | ||
2964 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2965 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2966 | ||
2967 | do_gettimeofday(×tamp); | |
2968 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2969 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2970 | } | |
34954ddc | 2971 | /* pkt_dev->seq_num++; FF: you really mean this? */ |
222f1806 | 2972 | |
1da177e4 LT |
2973 | return skb; |
2974 | } | |
2975 | ||
222f1806 LC |
2976 | static inline struct sk_buff *fill_packet(struct net_device *odev, |
2977 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 2978 | { |
222f1806 | 2979 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
2980 | return fill_packet_ipv6(odev, pkt_dev); |
2981 | else | |
2982 | return fill_packet_ipv4(odev, pkt_dev); | |
2983 | } | |
2984 | ||
222f1806 | 2985 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 2986 | { |
222f1806 LC |
2987 | pkt_dev->seq_num = 1; |
2988 | pkt_dev->idle_acc = 0; | |
1da177e4 | 2989 | pkt_dev->sofar = 0; |
222f1806 LC |
2990 | pkt_dev->tx_bytes = 0; |
2991 | pkt_dev->errors = 0; | |
1da177e4 LT |
2992 | } |
2993 | ||
2994 | /* Set up structure for sending pkts, clear counters */ | |
2995 | ||
2996 | static void pktgen_run(struct pktgen_thread *t) | |
2997 | { | |
c26a8016 | 2998 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
2999 | int started = 0; |
3000 | ||
25c4e53a | 3001 | pr_debug("pktgen: entering pktgen_run. %p\n", t); |
1da177e4 LT |
3002 | |
3003 | if_lock(t); | |
c26a8016 | 3004 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
3005 | |
3006 | /* | |
3007 | * setup odev and create initial packet. | |
3008 | */ | |
3009 | pktgen_setup_inject(pkt_dev); | |
3010 | ||
222f1806 | 3011 | if (pkt_dev->odev) { |
1da177e4 | 3012 | pktgen_clear_counters(pkt_dev); |
222f1806 | 3013 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 LT |
3014 | pkt_dev->skb = NULL; |
3015 | pkt_dev->started_at = getCurUs(); | |
222f1806 | 3016 | pkt_dev->next_tx_us = getCurUs(); /* Transmit immediately */ |
1da177e4 | 3017 | pkt_dev->next_tx_ns = 0; |
16dab72f | 3018 | set_pkt_overhead(pkt_dev); |
222f1806 | 3019 | |
1da177e4 LT |
3020 | strcpy(pkt_dev->result, "Starting"); |
3021 | started++; | |
222f1806 | 3022 | } else |
1da177e4 LT |
3023 | strcpy(pkt_dev->result, "Error starting"); |
3024 | } | |
3025 | if_unlock(t); | |
222f1806 LC |
3026 | if (started) |
3027 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3028 | } |
3029 | ||
3030 | static void pktgen_stop_all_threads_ifs(void) | |
3031 | { | |
cdcdbe0b | 3032 | struct pktgen_thread *t; |
1da177e4 | 3033 | |
25c4e53a | 3034 | pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n"); |
1da177e4 | 3035 | |
6146e6a4 | 3036 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3037 | |
3038 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3039 | t->control |= T_STOP; |
cdcdbe0b | 3040 | |
6146e6a4 | 3041 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3042 | } |
3043 | ||
222f1806 | 3044 | static int thread_is_running(struct pktgen_thread *t) |
1da177e4 | 3045 | { |
c26a8016 | 3046 | struct pktgen_dev *pkt_dev; |
222f1806 | 3047 | int res = 0; |
1da177e4 | 3048 | |
c26a8016 LC |
3049 | list_for_each_entry(pkt_dev, &t->if_list, list) |
3050 | if (pkt_dev->running) { | |
1da177e4 LT |
3051 | res = 1; |
3052 | break; | |
3053 | } | |
222f1806 | 3054 | return res; |
1da177e4 LT |
3055 | } |
3056 | ||
222f1806 | 3057 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3058 | { |
222f1806 | 3059 | if_lock(t); |
1da177e4 | 3060 | |
222f1806 | 3061 | while (thread_is_running(t)) { |
1da177e4 | 3062 | |
222f1806 | 3063 | if_unlock(t); |
1da177e4 | 3064 | |
222f1806 | 3065 | msleep_interruptible(100); |
1da177e4 | 3066 | |
222f1806 LC |
3067 | if (signal_pending(current)) |
3068 | goto signal; | |
3069 | if_lock(t); | |
3070 | } | |
3071 | if_unlock(t); | |
3072 | return 1; | |
3073 | signal: | |
3074 | return 0; | |
1da177e4 LT |
3075 | } |
3076 | ||
3077 | static int pktgen_wait_all_threads_run(void) | |
3078 | { | |
cdcdbe0b | 3079 | struct pktgen_thread *t; |
1da177e4 | 3080 | int sig = 1; |
222f1806 | 3081 | |
6146e6a4 | 3082 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3083 | |
3084 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3085 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3086 | if (sig == 0) |
3087 | break; | |
1da177e4 | 3088 | } |
cdcdbe0b LC |
3089 | |
3090 | if (sig == 0) | |
3091 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3092 | t->control |= (T_STOP); |
cdcdbe0b | 3093 | |
6146e6a4 | 3094 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3095 | return sig; |
3096 | } | |
3097 | ||
3098 | static void pktgen_run_all_threads(void) | |
3099 | { | |
cdcdbe0b | 3100 | struct pktgen_thread *t; |
1da177e4 | 3101 | |
25c4e53a | 3102 | pr_debug("pktgen: entering pktgen_run_all_threads.\n"); |
1da177e4 | 3103 | |
6146e6a4 | 3104 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3105 | |
cdcdbe0b | 3106 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3107 | t->control |= (T_RUN); |
cdcdbe0b | 3108 | |
6146e6a4 | 3109 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3110 | |
222f1806 LC |
3111 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
3112 | ||
1da177e4 LT |
3113 | pktgen_wait_all_threads_run(); |
3114 | } | |
3115 | ||
1da177e4 LT |
3116 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3117 | { | |
222f1806 LC |
3118 | __u64 total_us, bps, mbps, pps, idle; |
3119 | char *p = pkt_dev->result; | |
3120 | ||
3121 | total_us = pkt_dev->stopped_at - pkt_dev->started_at; | |
3122 | ||
3123 | idle = pkt_dev->idle_acc; | |
3124 | ||
3125 | p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n", | |
3126 | (unsigned long long)total_us, | |
3127 | (unsigned long long)(total_us - idle), | |
3128 | (unsigned long long)idle, | |
3129 | (unsigned long long)pkt_dev->sofar, | |
3130 | pkt_dev->cur_pkt_size, nr_frags); | |
3131 | ||
3132 | pps = pkt_dev->sofar * USEC_PER_SEC; | |
3133 | ||
3134 | while ((total_us >> 32) != 0) { | |
3135 | pps >>= 1; | |
3136 | total_us >>= 1; | |
3137 | } | |
3138 | ||
3139 | do_div(pps, total_us); | |
3140 | ||
3141 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3142 | ||
3143 | mbps = bps; | |
3144 | do_div(mbps, 1000000); | |
3145 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3146 | (unsigned long long)pps, | |
3147 | (unsigned long long)mbps, | |
3148 | (unsigned long long)bps, | |
3149 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3150 | } |
1da177e4 LT |
3151 | |
3152 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
3153 | ||
222f1806 | 3154 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3155 | { |
222f1806 | 3156 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3157 | |
222f1806 | 3158 | if (!pkt_dev->running) { |
25a8b254 DM |
3159 | printk(KERN_WARNING "pktgen: interface: %s is already " |
3160 | "stopped\n", pkt_dev->odev->name); | |
222f1806 LC |
3161 | return -EINVAL; |
3162 | } | |
1da177e4 | 3163 | |
222f1806 LC |
3164 | pkt_dev->stopped_at = getCurUs(); |
3165 | pkt_dev->running = 0; | |
1da177e4 | 3166 | |
95ed63f7 | 3167 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3168 | |
222f1806 | 3169 | return 0; |
1da177e4 LT |
3170 | } |
3171 | ||
222f1806 | 3172 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3173 | { |
c26a8016 | 3174 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3175 | |
1da177e4 LT |
3176 | if_lock(t); |
3177 | ||
c26a8016 LC |
3178 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3179 | if (!pkt_dev->running) | |
222f1806 LC |
3180 | continue; |
3181 | if (best == NULL) | |
c26a8016 LC |
3182 | best = pkt_dev; |
3183 | else if (pkt_dev->next_tx_us < best->next_tx_us) | |
3184 | best = pkt_dev; | |
1da177e4 LT |
3185 | } |
3186 | if_unlock(t); | |
222f1806 | 3187 | return best; |
1da177e4 LT |
3188 | } |
3189 | ||
222f1806 LC |
3190 | static void pktgen_stop(struct pktgen_thread *t) |
3191 | { | |
c26a8016 | 3192 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3193 | |
25c4e53a | 3194 | pr_debug("pktgen: entering pktgen_stop\n"); |
1da177e4 | 3195 | |
222f1806 | 3196 | if_lock(t); |
1da177e4 | 3197 | |
c26a8016 LC |
3198 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3199 | pktgen_stop_device(pkt_dev); | |
3200 | if (pkt_dev->skb) | |
3201 | kfree_skb(pkt_dev->skb); | |
95ed63f7 | 3202 | |
c26a8016 | 3203 | pkt_dev->skb = NULL; |
95ed63f7 | 3204 | } |
1da177e4 | 3205 | |
222f1806 | 3206 | if_unlock(t); |
1da177e4 LT |
3207 | } |
3208 | ||
95ed63f7 AK |
3209 | /* |
3210 | * one of our devices needs to be removed - find it | |
3211 | * and remove it | |
3212 | */ | |
3213 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3214 | { | |
c26a8016 LC |
3215 | struct list_head *q, *n; |
3216 | struct pktgen_dev *cur; | |
95ed63f7 | 3217 | |
25c4e53a | 3218 | pr_debug("pktgen: entering pktgen_rem_one_if\n"); |
95ed63f7 AK |
3219 | |
3220 | if_lock(t); | |
3221 | ||
c26a8016 LC |
3222 | list_for_each_safe(q, n, &t->if_list) { |
3223 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3224 | |
222f1806 LC |
3225 | if (!cur->removal_mark) |
3226 | continue; | |
95ed63f7 AK |
3227 | |
3228 | if (cur->skb) | |
3229 | kfree_skb(cur->skb); | |
3230 | cur->skb = NULL; | |
3231 | ||
3232 | pktgen_remove_device(t, cur); | |
3233 | ||
3234 | break; | |
3235 | } | |
3236 | ||
3237 | if_unlock(t); | |
3238 | } | |
3239 | ||
222f1806 | 3240 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3241 | { |
c26a8016 LC |
3242 | struct list_head *q, *n; |
3243 | struct pktgen_dev *cur; | |
222f1806 LC |
3244 | |
3245 | /* Remove all devices, free mem */ | |
95ed63f7 | 3246 | |
25c4e53a | 3247 | pr_debug("pktgen: entering pktgen_rem_all_ifs\n"); |
222f1806 | 3248 | if_lock(t); |
1da177e4 | 3249 | |
c26a8016 LC |
3250 | list_for_each_safe(q, n, &t->if_list) { |
3251 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 AK |
3252 | |
3253 | if (cur->skb) | |
3254 | kfree_skb(cur->skb); | |
3255 | cur->skb = NULL; | |
3256 | ||
1da177e4 LT |
3257 | pktgen_remove_device(t, cur); |
3258 | } | |
3259 | ||
222f1806 | 3260 | if_unlock(t); |
1da177e4 LT |
3261 | } |
3262 | ||
222f1806 | 3263 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3264 | { |
222f1806 | 3265 | /* Remove from the thread list */ |
1da177e4 | 3266 | |
ee74baa7 | 3267 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3268 | |
6146e6a4 | 3269 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3270 | |
cdcdbe0b LC |
3271 | list_del(&t->th_list); |
3272 | ||
6146e6a4 | 3273 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3274 | } |
3275 | ||
3276 | static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev) | |
3277 | { | |
3278 | struct net_device *odev = NULL; | |
fd2ea0a7 | 3279 | struct netdev_queue *txq; |
1da177e4 | 3280 | __u64 idle_start = 0; |
fd2ea0a7 | 3281 | u16 queue_map; |
1da177e4 LT |
3282 | int ret; |
3283 | ||
3284 | odev = pkt_dev->odev; | |
222f1806 | 3285 | |
1da177e4 LT |
3286 | if (pkt_dev->delay_us || pkt_dev->delay_ns) { |
3287 | u64 now; | |
3288 | ||
3289 | now = getCurUs(); | |
3290 | if (now < pkt_dev->next_tx_us) | |
3291 | spin(pkt_dev, pkt_dev->next_tx_us); | |
3292 | ||
3293 | /* This is max DELAY, this has special meaning of | |
3294 | * "never transmit" | |
3295 | */ | |
3296 | if (pkt_dev->delay_us == 0x7FFFFFFF) { | |
3297 | pkt_dev->next_tx_us = getCurUs() + pkt_dev->delay_us; | |
3298 | pkt_dev->next_tx_ns = pkt_dev->delay_ns; | |
3299 | goto out; | |
3300 | } | |
3301 | } | |
222f1806 | 3302 | |
fd2ea0a7 DM |
3303 | if (!pkt_dev->skb) { |
3304 | set_cur_queue_map(pkt_dev); | |
3305 | queue_map = pkt_dev->cur_queue_map; | |
3306 | } else { | |
3307 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3308 | } | |
3309 | ||
3310 | txq = netdev_get_tx_queue(odev, queue_map); | |
3311 | if (netif_tx_queue_stopped(txq) || | |
c3f26a26 | 3312 | netif_tx_queue_frozen(txq) || |
378be2c0 | 3313 | need_resched()) { |
1da177e4 | 3314 | idle_start = getCurUs(); |
222f1806 | 3315 | |
1da177e4 LT |
3316 | if (!netif_running(odev)) { |
3317 | pktgen_stop_device(pkt_dev); | |
95ed63f7 AK |
3318 | if (pkt_dev->skb) |
3319 | kfree_skb(pkt_dev->skb); | |
3320 | pkt_dev->skb = NULL; | |
1da177e4 LT |
3321 | goto out; |
3322 | } | |
222f1806 | 3323 | if (need_resched()) |
1da177e4 | 3324 | schedule(); |
222f1806 | 3325 | |
1da177e4 | 3326 | pkt_dev->idle_acc += getCurUs() - idle_start; |
222f1806 | 3327 | |
c3f26a26 DM |
3328 | if (netif_tx_queue_stopped(txq) || |
3329 | netif_tx_queue_frozen(txq)) { | |
222f1806 | 3330 | pkt_dev->next_tx_us = getCurUs(); /* TODO */ |
1da177e4 | 3331 | pkt_dev->next_tx_ns = 0; |
222f1806 | 3332 | goto out; /* Try the next interface */ |
1da177e4 LT |
3333 | } |
3334 | } | |
222f1806 | 3335 | |
1da177e4 | 3336 | if (pkt_dev->last_ok || !pkt_dev->skb) { |
222f1806 LC |
3337 | if ((++pkt_dev->clone_count >= pkt_dev->clone_skb) |
3338 | || (!pkt_dev->skb)) { | |
1da177e4 | 3339 | /* build a new pkt */ |
222f1806 | 3340 | if (pkt_dev->skb) |
1da177e4 | 3341 | kfree_skb(pkt_dev->skb); |
222f1806 | 3342 | |
1da177e4 LT |
3343 | pkt_dev->skb = fill_packet(odev, pkt_dev); |
3344 | if (pkt_dev->skb == NULL) { | |
25a8b254 DM |
3345 | printk(KERN_ERR "pktgen: ERROR: couldn't " |
3346 | "allocate skb in fill_packet.\n"); | |
1da177e4 | 3347 | schedule(); |
222f1806 | 3348 | pkt_dev->clone_count--; /* back out increment, OOM */ |
1da177e4 LT |
3349 | goto out; |
3350 | } | |
3351 | pkt_dev->allocated_skbs++; | |
222f1806 | 3352 | pkt_dev->clone_count = 0; /* reset counter */ |
1da177e4 LT |
3353 | } |
3354 | } | |
95ed63f7 | 3355 | |
fd2ea0a7 DM |
3356 | /* fill_packet() might have changed the queue */ |
3357 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3358 | txq = netdev_get_tx_queue(odev, queue_map); | |
3359 | ||
3360 | __netif_tx_lock_bh(txq); | |
c3f26a26 DM |
3361 | if (!netif_tx_queue_stopped(txq) && |
3362 | !netif_tx_queue_frozen(txq)) { | |
1da177e4 LT |
3363 | |
3364 | atomic_inc(&(pkt_dev->skb->users)); | |
222f1806 | 3365 | retry_now: |
1da177e4 LT |
3366 | ret = odev->hard_start_xmit(pkt_dev->skb, odev); |
3367 | if (likely(ret == NETDEV_TX_OK)) { | |
222f1806 | 3368 | pkt_dev->last_ok = 1; |
1da177e4 LT |
3369 | pkt_dev->sofar++; |
3370 | pkt_dev->seq_num++; | |
3371 | pkt_dev->tx_bytes += pkt_dev->cur_pkt_size; | |
222f1806 LC |
3372 | |
3373 | } else if (ret == NETDEV_TX_LOCKED | |
1da177e4 LT |
3374 | && (odev->features & NETIF_F_LLTX)) { |
3375 | cpu_relax(); | |
3376 | goto retry_now; | |
222f1806 LC |
3377 | } else { /* Retry it next time */ |
3378 | ||
1da177e4 | 3379 | atomic_dec(&(pkt_dev->skb->users)); |
222f1806 | 3380 | |
1da177e4 LT |
3381 | if (debug && net_ratelimit()) |
3382 | printk(KERN_INFO "pktgen: Hard xmit error\n"); | |
222f1806 | 3383 | |
1da177e4 LT |
3384 | pkt_dev->errors++; |
3385 | pkt_dev->last_ok = 0; | |
3386 | } | |
3387 | ||
3388 | pkt_dev->next_tx_us = getCurUs(); | |
3389 | pkt_dev->next_tx_ns = 0; | |
3390 | ||
3391 | pkt_dev->next_tx_us += pkt_dev->delay_us; | |
3392 | pkt_dev->next_tx_ns += pkt_dev->delay_ns; | |
3393 | ||
3394 | if (pkt_dev->next_tx_ns > 1000) { | |
3395 | pkt_dev->next_tx_us++; | |
3396 | pkt_dev->next_tx_ns -= 1000; | |
3397 | } | |
222f1806 | 3398 | } |
1da177e4 | 3399 | |
222f1806 LC |
3400 | else { /* Retry it next time */ |
3401 | pkt_dev->last_ok = 0; | |
3402 | pkt_dev->next_tx_us = getCurUs(); /* TODO */ | |
1da177e4 | 3403 | pkt_dev->next_tx_ns = 0; |
222f1806 | 3404 | } |
1da177e4 | 3405 | |
fd2ea0a7 | 3406 | __netif_tx_unlock_bh(txq); |
222f1806 | 3407 | |
1da177e4 LT |
3408 | /* If pkt_dev->count is zero, then run forever */ |
3409 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
3410 | if (atomic_read(&(pkt_dev->skb->users)) != 1) { | |
3411 | idle_start = getCurUs(); | |
3412 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { | |
3413 | if (signal_pending(current)) { | |
3414 | break; | |
3415 | } | |
3416 | schedule(); | |
3417 | } | |
3418 | pkt_dev->idle_acc += getCurUs() - idle_start; | |
3419 | } | |
222f1806 | 3420 | |
1da177e4 LT |
3421 | /* Done with this */ |
3422 | pktgen_stop_device(pkt_dev); | |
95ed63f7 AK |
3423 | if (pkt_dev->skb) |
3424 | kfree_skb(pkt_dev->skb); | |
3425 | pkt_dev->skb = NULL; | |
222f1806 LC |
3426 | } |
3427 | out:; | |
3428 | } | |
1da177e4 | 3429 | |
4ec93edb | 3430 | /* |
1da177e4 LT |
3431 | * Main loop of the thread goes here |
3432 | */ | |
3433 | ||
ee74baa7 | 3434 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3435 | { |
3436 | DEFINE_WAIT(wait); | |
ee74baa7 | 3437 | struct pktgen_thread *t = arg; |
222f1806 | 3438 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3439 | int cpu = t->cpu; |
1da177e4 | 3440 | |
ee74baa7 | 3441 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3442 | |
3443 | init_waitqueue_head(&t->queue); | |
d3ede327 | 3444 | complete(&t->start_done); |
1da177e4 | 3445 | |
ba25f9dc | 3446 | pr_debug("pktgen: starting pktgen/%d: pid=%d\n", cpu, task_pid_nr(current)); |
1da177e4 | 3447 | |
ee74baa7 | 3448 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3449 | |
83144186 RW |
3450 | set_freezable(); |
3451 | ||
ee74baa7 DM |
3452 | while (!kthread_should_stop()) { |
3453 | pkt_dev = next_to_run(t); | |
1da177e4 | 3454 | |
ee74baa7 DM |
3455 | if (!pkt_dev && |
3456 | (t->control & (T_STOP | T_RUN | T_REMDEVALL | T_REMDEV)) | |
3457 | == 0) { | |
3458 | prepare_to_wait(&(t->queue), &wait, | |
3459 | TASK_INTERRUPTIBLE); | |
3460 | schedule_timeout(HZ / 10); | |
3461 | finish_wait(&(t->queue), &wait); | |
3462 | } | |
1da177e4 | 3463 | |
ee74baa7 | 3464 | __set_current_state(TASK_RUNNING); |
222f1806 | 3465 | |
b163911f | 3466 | if (pkt_dev) |
1da177e4 LT |
3467 | pktgen_xmit(pkt_dev); |
3468 | ||
222f1806 | 3469 | if (t->control & T_STOP) { |
1da177e4 LT |
3470 | pktgen_stop(t); |
3471 | t->control &= ~(T_STOP); | |
3472 | } | |
3473 | ||
222f1806 | 3474 | if (t->control & T_RUN) { |
1da177e4 LT |
3475 | pktgen_run(t); |
3476 | t->control &= ~(T_RUN); | |
3477 | } | |
3478 | ||
222f1806 | 3479 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3480 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3481 | t->control &= ~(T_REMDEVALL); |
3482 | } | |
3483 | ||
222f1806 | 3484 | if (t->control & T_REMDEV) { |
95ed63f7 | 3485 | pktgen_rem_one_if(t); |
1da177e4 LT |
3486 | t->control &= ~(T_REMDEV); |
3487 | } | |
3488 | ||
09fe3ef4 AM |
3489 | try_to_freeze(); |
3490 | ||
ee74baa7 | 3491 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3492 | } |
1da177e4 | 3493 | |
25c4e53a | 3494 | pr_debug("pktgen: %s stopping all device\n", t->tsk->comm); |
222f1806 | 3495 | pktgen_stop(t); |
1da177e4 | 3496 | |
25c4e53a | 3497 | pr_debug("pktgen: %s removing all device\n", t->tsk->comm); |
222f1806 | 3498 | pktgen_rem_all_ifs(t); |
1da177e4 | 3499 | |
25c4e53a | 3500 | pr_debug("pktgen: %s removing thread.\n", t->tsk->comm); |
222f1806 | 3501 | pktgen_rem_thread(t); |
cdcdbe0b | 3502 | |
ee74baa7 | 3503 | return 0; |
1da177e4 LT |
3504 | } |
3505 | ||
222f1806 LC |
3506 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3507 | const char *ifname) | |
1da177e4 | 3508 | { |
c26a8016 | 3509 | struct pktgen_dev *p, *pkt_dev = NULL; |
222f1806 LC |
3510 | if_lock(t); |
3511 | ||
c26a8016 | 3512 | list_for_each_entry(p, &t->if_list, list) |
39df232f | 3513 | if (strncmp(p->odev->name, ifname, IFNAMSIZ) == 0) { |
c26a8016 | 3514 | pkt_dev = p; |
222f1806 LC |
3515 | break; |
3516 | } | |
222f1806 LC |
3517 | |
3518 | if_unlock(t); | |
25c4e53a | 3519 | pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3520 | return pkt_dev; |
1da177e4 LT |
3521 | } |
3522 | ||
4ec93edb YH |
3523 | /* |
3524 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3525 | */ |
3526 | ||
222f1806 LC |
3527 | static int add_dev_to_thread(struct pktgen_thread *t, |
3528 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3529 | { |
3530 | int rv = 0; | |
222f1806 LC |
3531 | |
3532 | if_lock(t); | |
3533 | ||
3534 | if (pkt_dev->pg_thread) { | |
25a8b254 DM |
3535 | printk(KERN_ERR "pktgen: ERROR: already assigned " |
3536 | "to a thread.\n"); | |
222f1806 LC |
3537 | rv = -EBUSY; |
3538 | goto out; | |
3539 | } | |
c26a8016 LC |
3540 | |
3541 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3542 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3543 | pkt_dev->running = 0; |
3544 | ||
222f1806 LC |
3545 | out: |
3546 | if_unlock(t); | |
3547 | return rv; | |
1da177e4 LT |
3548 | } |
3549 | ||
3550 | /* Called under thread lock */ | |
3551 | ||
222f1806 | 3552 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3553 | { |
222f1806 | 3554 | struct pktgen_dev *pkt_dev; |
39df232f | 3555 | int err; |
222f1806 | 3556 | |
1da177e4 LT |
3557 | /* We don't allow a device to be on several threads */ |
3558 | ||
d50a6b56 SH |
3559 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3560 | if (pkt_dev) { | |
25a8b254 | 3561 | printk(KERN_ERR "pktgen: ERROR: interface already used.\n"); |
222f1806 LC |
3562 | return -EBUSY; |
3563 | } | |
d50a6b56 SH |
3564 | |
3565 | pkt_dev = kzalloc(sizeof(struct pktgen_dev), GFP_KERNEL); | |
3566 | if (!pkt_dev) | |
3567 | return -ENOMEM; | |
3568 | ||
222f1806 | 3569 | pkt_dev->flows = vmalloc(MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 SH |
3570 | if (pkt_dev->flows == NULL) { |
3571 | kfree(pkt_dev); | |
3572 | return -ENOMEM; | |
3573 | } | |
222f1806 | 3574 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3575 | |
95ed63f7 | 3576 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3577 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3578 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3579 | pkt_dev->nfrags = 0; | |
3580 | pkt_dev->clone_skb = pg_clone_skb_d; | |
3581 | pkt_dev->delay_us = pg_delay_d / 1000; | |
3582 | pkt_dev->delay_ns = pg_delay_d % 1000; | |
3583 | pkt_dev->count = pg_count_d; | |
3584 | pkt_dev->sofar = 0; | |
222f1806 | 3585 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3586 | pkt_dev->udp_src_max = 9; |
3587 | pkt_dev->udp_dst_min = 9; | |
3588 | pkt_dev->udp_dst_max = 9; | |
3589 | ||
34954ddc FF |
3590 | pkt_dev->vlan_p = 0; |
3591 | pkt_dev->vlan_cfi = 0; | |
3592 | pkt_dev->vlan_id = 0xffff; | |
3593 | pkt_dev->svlan_p = 0; | |
3594 | pkt_dev->svlan_cfi = 0; | |
3595 | pkt_dev->svlan_id = 0xffff; | |
3596 | ||
39df232f SH |
3597 | err = pktgen_setup_dev(pkt_dev, ifname); |
3598 | if (err) | |
3599 | goto out1; | |
d50a6b56 | 3600 | |
5efdccbc DL |
3601 | pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir, |
3602 | &pktgen_if_fops, pkt_dev); | |
39df232f | 3603 | if (!pkt_dev->entry) { |
25a8b254 | 3604 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
d50a6b56 | 3605 | PG_PROC_DIR, ifname); |
39df232f SH |
3606 | err = -EINVAL; |
3607 | goto out2; | |
d50a6b56 | 3608 | } |
a553e4a6 JHS |
3609 | #ifdef CONFIG_XFRM |
3610 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3611 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3612 | #endif | |
d50a6b56 SH |
3613 | |
3614 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3615 | out2: |
3616 | dev_put(pkt_dev->odev); | |
3617 | out1: | |
a553e4a6 JHS |
3618 | #ifdef CONFIG_XFRM |
3619 | free_SAs(pkt_dev); | |
3620 | #endif | |
39df232f SH |
3621 | if (pkt_dev->flows) |
3622 | vfree(pkt_dev->flows); | |
3623 | kfree(pkt_dev); | |
3624 | return err; | |
1da177e4 LT |
3625 | } |
3626 | ||
ee74baa7 | 3627 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3628 | { |
cdcdbe0b | 3629 | struct pktgen_thread *t; |
d50a6b56 | 3630 | struct proc_dir_entry *pe; |
ee74baa7 | 3631 | struct task_struct *p; |
222f1806 LC |
3632 | |
3633 | t = kzalloc(sizeof(struct pktgen_thread), GFP_KERNEL); | |
3634 | if (!t) { | |
25a8b254 DM |
3635 | printk(KERN_ERR "pktgen: ERROR: out of memory, can't " |
3636 | "create new thread.\n"); | |
222f1806 LC |
3637 | return -ENOMEM; |
3638 | } | |
3639 | ||
222f1806 | 3640 | spin_lock_init(&t->if_lock); |
1da177e4 | 3641 | t->cpu = cpu; |
222f1806 | 3642 | |
ee74baa7 DM |
3643 | INIT_LIST_HEAD(&t->if_list); |
3644 | ||
3645 | list_add_tail(&t->th_list, &pktgen_threads); | |
d3ede327 | 3646 | init_completion(&t->start_done); |
ee74baa7 DM |
3647 | |
3648 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3649 | if (IS_ERR(p)) { | |
25a8b254 DM |
3650 | printk(KERN_ERR "pktgen: kernel_thread() failed " |
3651 | "for cpu %d\n", t->cpu); | |
ee74baa7 DM |
3652 | list_del(&t->th_list); |
3653 | kfree(t); | |
3654 | return PTR_ERR(p); | |
3655 | } | |
3656 | kthread_bind(p, cpu); | |
3657 | t->tsk = p; | |
3658 | ||
5efdccbc DL |
3659 | pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir, |
3660 | &pktgen_thread_fops, t); | |
222f1806 | 3661 | if (!pe) { |
25a8b254 | 3662 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
ee74baa7 DM |
3663 | PG_PROC_DIR, t->tsk->comm); |
3664 | kthread_stop(p); | |
3665 | list_del(&t->th_list); | |
222f1806 LC |
3666 | kfree(t); |
3667 | return -EINVAL; | |
3668 | } | |
d50a6b56 | 3669 | |
ee74baa7 | 3670 | wake_up_process(p); |
d3ede327 | 3671 | wait_for_completion(&t->start_done); |
1da177e4 LT |
3672 | |
3673 | return 0; | |
3674 | } | |
3675 | ||
4ec93edb YH |
3676 | /* |
3677 | * Removes a device from the thread if_list. | |
1da177e4 | 3678 | */ |
222f1806 LC |
3679 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3680 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3681 | { |
c26a8016 LC |
3682 | struct list_head *q, *n; |
3683 | struct pktgen_dev *p; | |
1da177e4 | 3684 | |
c26a8016 LC |
3685 | list_for_each_safe(q, n, &t->if_list) { |
3686 | p = list_entry(q, struct pktgen_dev, list); | |
3687 | if (p == pkt_dev) | |
3688 | list_del(&p->list); | |
1da177e4 LT |
3689 | } |
3690 | } | |
3691 | ||
222f1806 LC |
3692 | static int pktgen_remove_device(struct pktgen_thread *t, |
3693 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3694 | { |
3695 | ||
25c4e53a | 3696 | pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3697 | |
222f1806 | 3698 | if (pkt_dev->running) { |
25a8b254 DM |
3699 | printk(KERN_WARNING "pktgen: WARNING: trying to remove a " |
3700 | "running interface, stopping it now.\n"); | |
222f1806 LC |
3701 | pktgen_stop_device(pkt_dev); |
3702 | } | |
3703 | ||
3704 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3705 | |
3706 | if (pkt_dev->odev) { | |
3707 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3708 | pkt_dev->odev = NULL; |
3709 | } | |
3710 | ||
1da177e4 LT |
3711 | /* And update the thread if_list */ |
3712 | ||
3713 | _rem_dev_from_if_list(t, pkt_dev); | |
3714 | ||
39df232f SH |
3715 | if (pkt_dev->entry) |
3716 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3717 | |
a553e4a6 JHS |
3718 | #ifdef CONFIG_XFRM |
3719 | free_SAs(pkt_dev); | |
3720 | #endif | |
1da177e4 LT |
3721 | if (pkt_dev->flows) |
3722 | vfree(pkt_dev->flows); | |
3723 | kfree(pkt_dev); | |
222f1806 | 3724 | return 0; |
1da177e4 LT |
3725 | } |
3726 | ||
222f1806 | 3727 | static int __init pg_init(void) |
1da177e4 LT |
3728 | { |
3729 | int cpu; | |
d50a6b56 | 3730 | struct proc_dir_entry *pe; |
1da177e4 | 3731 | |
25a8b254 | 3732 | printk(KERN_INFO "%s", version); |
1da177e4 | 3733 | |
457c4cbc | 3734 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3735 | if (!pg_proc_dir) |
3736 | return -ENODEV; | |
3737 | pg_proc_dir->owner = THIS_MODULE; | |
1da177e4 | 3738 | |
25296d59 | 3739 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3740 | if (pe == NULL) { |
25a8b254 DM |
3741 | printk(KERN_ERR "pktgen: ERROR: cannot create %s " |
3742 | "procfs entry.\n", PGCTRL); | |
457c4cbc | 3743 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3744 | return -EINVAL; |
3745 | } | |
1da177e4 | 3746 | |
1da177e4 LT |
3747 | /* Register us to receive netdevice events */ |
3748 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3749 | |
670c02c2 | 3750 | for_each_online_cpu(cpu) { |
8024bb24 | 3751 | int err; |
1da177e4 | 3752 | |
ee74baa7 | 3753 | err = pktgen_create_thread(cpu); |
8024bb24 | 3754 | if (err) |
25a8b254 DM |
3755 | printk(KERN_WARNING "pktgen: WARNING: Cannot create " |
3756 | "thread for cpu %d (%d)\n", cpu, err); | |
222f1806 | 3757 | } |
8024bb24 LC |
3758 | |
3759 | if (list_empty(&pktgen_threads)) { | |
25a8b254 DM |
3760 | printk(KERN_ERR "pktgen: ERROR: Initialization failed for " |
3761 | "all threads\n"); | |
8024bb24 LC |
3762 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3763 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3764 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3765 | return -ENODEV; |
3766 | } | |
3767 | ||
222f1806 | 3768 | return 0; |
1da177e4 LT |
3769 | } |
3770 | ||
3771 | static void __exit pg_cleanup(void) | |
3772 | { | |
cdcdbe0b LC |
3773 | struct pktgen_thread *t; |
3774 | struct list_head *q, *n; | |
1da177e4 LT |
3775 | wait_queue_head_t queue; |
3776 | init_waitqueue_head(&queue); | |
3777 | ||
222f1806 | 3778 | /* Stop all interfaces & threads */ |
1da177e4 | 3779 | |
cdcdbe0b LC |
3780 | list_for_each_safe(q, n, &pktgen_threads) { |
3781 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3782 | kthread_stop(t->tsk); |
3783 | kfree(t); | |
222f1806 | 3784 | } |
1da177e4 | 3785 | |
222f1806 | 3786 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3787 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3788 | ||
222f1806 | 3789 | /* Clean up proc file system */ |
d50a6b56 | 3790 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3791 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3792 | } |
3793 | ||
1da177e4 LT |
3794 | module_init(pg_init); |
3795 | module_exit(pg_cleanup); | |
3796 | ||
3797 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se"); | |
3798 | MODULE_DESCRIPTION("Packet Generator tool"); | |
3799 | MODULE_LICENSE("GPL"); | |
3800 | module_param(pg_count_d, int, 0); | |
3801 | module_param(pg_delay_d, int, 0); | |
3802 | module_param(pg_clone_skb_d, int, 0); | |
3803 | module_param(debug, int, 0); |