Lines Matching refs:opt
44 void ip_options_build(struct sk_buff *skb, struct ip_options *opt, in ip_options_build() argument
49 memcpy(&(IPCB(skb)->opt), opt, sizeof(struct ip_options)); in ip_options_build()
50 memcpy(iph+sizeof(struct iphdr), opt->__data, opt->optlen); in ip_options_build()
51 opt = &(IPCB(skb)->opt); in ip_options_build()
53 if (opt->srr) in ip_options_build()
54 memcpy(iph+opt->srr+iph[opt->srr+1]-4, &daddr, 4); in ip_options_build()
57 if (opt->rr_needaddr) in ip_options_build()
58 ip_rt_get_source(iph+opt->rr+iph[opt->rr+2]-5, skb, rt); in ip_options_build()
59 if (opt->ts_needaddr) in ip_options_build()
60 ip_rt_get_source(iph+opt->ts+iph[opt->ts+2]-9, skb, rt); in ip_options_build()
61 if (opt->ts_needtime) { in ip_options_build()
65 memcpy(iph+opt->ts+iph[opt->ts+2]-5, &midtime, 4); in ip_options_build()
69 if (opt->rr) { in ip_options_build()
70 memset(iph+opt->rr, IPOPT_NOP, iph[opt->rr+1]); in ip_options_build()
71 opt->rr = 0; in ip_options_build()
72 opt->rr_needaddr = 0; in ip_options_build()
74 if (opt->ts) { in ip_options_build()
75 memset(iph+opt->ts, IPOPT_NOP, iph[opt->ts+1]); in ip_options_build()
76 opt->ts = 0; in ip_options_build()
77 opt->ts_needaddr = opt->ts_needtime = 0; in ip_options_build()
211 struct ip_options *opt = &(IPCB(skb)->opt); in ip_options_fragment() local
212 int l = opt->optlen; in ip_options_fragment()
232 opt->ts = 0; in ip_options_fragment()
233 opt->rr = 0; in ip_options_fragment()
234 opt->rr_needaddr = 0; in ip_options_fragment()
235 opt->ts_needaddr = 0; in ip_options_fragment()
236 opt->ts_needtime = 0; in ip_options_fragment()
255 struct ip_options *opt, struct sk_buff *skb) in ip_options_compile() argument
268 optptr = opt->__data; in ip_options_compile()
271 for (l = opt->optlen; l > 0; ) { in ip_options_compile()
277 opt->is_changed = 1; in ip_options_compile()
307 if (opt->srr) { in ip_options_compile()
316 memcpy(&opt->faddr, &optptr[3], 4); in ip_options_compile()
320 opt->is_strictroute = (optptr[0] == IPOPT_SSRR); in ip_options_compile()
321 opt->srr = optptr - iph; in ip_options_compile()
324 if (opt->rr) { in ip_options_compile()
344 opt->is_changed = 1; in ip_options_compile()
347 opt->rr_needaddr = 1; in ip_options_compile()
349 opt->rr = optptr - iph; in ip_options_compile()
352 if (opt->ts) { in ip_options_compile()
374 opt->ts_needtime = 1; in ip_options_compile()
387 opt->ts_needaddr = 1; in ip_options_compile()
388 opt->ts_needtime = 1; in ip_options_compile()
404 opt->ts_needtime = 1; in ip_options_compile()
419 opt->is_changed = 1; in ip_options_compile()
429 opt->is_changed = 1; in ip_options_compile()
432 opt->ts = optptr - iph; in ip_options_compile()
440 opt->router_alert = optptr - iph; in ip_options_compile()
443 if ((!skb && !ns_capable(net->user_ns, CAP_NET_RAW)) || opt->cipso) { in ip_options_compile()
447 opt->cipso = optptr - iph; in ip_options_compile()
482 void ip_options_undo(struct ip_options *opt) in ip_options_undo() argument
484 if (opt->srr) { in ip_options_undo()
485 unsigned char *optptr = opt->__data+opt->srr-sizeof(struct iphdr); in ip_options_undo()
487 memcpy(optptr+3, &opt->faddr, 4); in ip_options_undo()
489 if (opt->rr_needaddr) { in ip_options_undo()
490 unsigned char *optptr = opt->__data+opt->rr-sizeof(struct iphdr); in ip_options_undo()
494 if (opt->ts) { in ip_options_undo()
495 unsigned char *optptr = opt->__data+opt->ts-sizeof(struct iphdr); in ip_options_undo()
496 if (opt->ts_needtime) { in ip_options_undo()
502 if (opt->ts_needaddr) { in ip_options_undo()
516 struct ip_options_rcu *opt, int optlen) in ip_options_get_finish() argument
519 opt->opt.__data[optlen++] = IPOPT_END; in ip_options_get_finish()
520 opt->opt.optlen = optlen; in ip_options_get_finish()
521 if (optlen && ip_options_compile(net, &opt->opt, NULL)) { in ip_options_get_finish()
522 kfree(opt); in ip_options_get_finish()
526 *optp = opt; in ip_options_get_finish()
533 struct ip_options_rcu *opt = ip_options_get_alloc(optlen); in ip_options_get_from_user() local
535 if (!opt) in ip_options_get_from_user()
537 if (optlen && copy_from_user(opt->opt.__data, data, optlen)) { in ip_options_get_from_user()
538 kfree(opt); in ip_options_get_from_user()
541 return ip_options_get_finish(net, optp, opt, optlen); in ip_options_get_from_user()
547 struct ip_options_rcu *opt = ip_options_get_alloc(optlen); in ip_options_get() local
549 if (!opt) in ip_options_get()
552 memcpy(opt->opt.__data, data, optlen); in ip_options_get()
553 return ip_options_get_finish(net, optp, opt, optlen); in ip_options_get()
558 struct ip_options *opt = &(IPCB(skb)->opt); in ip_forward_options() local
563 if (opt->rr_needaddr) { in ip_forward_options()
564 optptr = (unsigned char *)raw + opt->rr; in ip_forward_options()
566 opt->is_changed = 1; in ip_forward_options()
568 if (opt->srr_is_hit) { in ip_forward_options()
571 optptr = raw + opt->srr; in ip_forward_options()
579 if (memcmp(&opt->nexthop, &optptr[srrptr-1], 4) == 0) in ip_forward_options()
583 opt->is_changed = 1; in ip_forward_options()
584 ip_hdr(skb)->daddr = opt->nexthop; in ip_forward_options()
591 if (opt->ts_needaddr) { in ip_forward_options()
592 optptr = raw + opt->ts; in ip_forward_options()
594 opt->is_changed = 1; in ip_forward_options()
597 if (opt->is_changed) { in ip_forward_options()
598 opt->is_changed = 0; in ip_forward_options()
605 struct ip_options *opt = &(IPCB(skb)->opt); in ip_options_rcv_srr() local
609 unsigned char *optptr = skb_network_header(skb) + opt->srr; in ip_options_rcv_srr()
621 if (!opt->is_strictroute) in ip_options_rcv_srr()
631 icmp_send(skb, ICMP_PARAMETERPROB, 0, htonl((opt->srr+2)<<24)); in ip_options_rcv_srr()
650 opt->is_changed = 1; in ip_options_rcv_srr()
653 opt->srr_is_hit = 1; in ip_options_rcv_srr()
654 opt->nexthop = nexthop; in ip_options_rcv_srr()
655 opt->is_changed = 1; in ip_options_rcv_srr()