ip6_output.c (b60d4e58c615d36a6c4e1a374786826da893fcd0) ip6_output.c (d656b2ea5fa797e515cd609ba5f4202901f3c466)
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * IPv6 output functions
4 * Linux INET6 implementation
5 *
6 * Authors:
7 * Pedro Roque <roque@di.fc.ul.pt>
8 *

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1349}
1350
1351static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
1352 struct inet6_cork *v6_cork, struct ipcm6_cookie *ipc6,
1353 struct rt6_info *rt, struct flowi6 *fl6)
1354{
1355 struct ipv6_pinfo *np = inet6_sk(sk);
1356 unsigned int mtu;
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * IPv6 output functions
4 * Linux INET6 implementation
5 *
6 * Authors:
7 * Pedro Roque <roque@di.fc.ul.pt>
8 *

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1349}
1350
1351static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
1352 struct inet6_cork *v6_cork, struct ipcm6_cookie *ipc6,
1353 struct rt6_info *rt, struct flowi6 *fl6)
1354{
1355 struct ipv6_pinfo *np = inet6_sk(sk);
1356 unsigned int mtu;
1357 struct ipv6_txoptions *opt = ipc6->opt;
1357 struct ipv6_txoptions *nopt, *opt = ipc6->opt;
1358
1359 /*
1360 * setup for corking
1361 */
1362 if (opt) {
1363 if (WARN_ON(v6_cork->opt))
1364 return -EINVAL;
1365
1358
1359 /*
1360 * setup for corking
1361 */
1362 if (opt) {
1363 if (WARN_ON(v6_cork->opt))
1364 return -EINVAL;
1365
1366 v6_cork->opt = kzalloc(sizeof(*opt), sk->sk_allocation);
1367 if (unlikely(!v6_cork->opt))
1366 nopt = v6_cork->opt = kzalloc(sizeof(*opt), sk->sk_allocation);
1367 if (unlikely(!nopt))
1368 return -ENOBUFS;
1369
1368 return -ENOBUFS;
1369
1370 v6_cork->opt->tot_len = sizeof(*opt);
1371 v6_cork->opt->opt_flen = opt->opt_flen;
1372 v6_cork->opt->opt_nflen = opt->opt_nflen;
1370 nopt->tot_len = sizeof(*opt);
1371 nopt->opt_flen = opt->opt_flen;
1372 nopt->opt_nflen = opt->opt_nflen;
1373
1373
1374 v6_cork->opt->dst0opt = ip6_opt_dup(opt->dst0opt,
1375 sk->sk_allocation);
1376 if (opt->dst0opt && !v6_cork->opt->dst0opt)
1374 nopt->dst0opt = ip6_opt_dup(opt->dst0opt, sk->sk_allocation);
1375 if (opt->dst0opt && !nopt->dst0opt)
1377 return -ENOBUFS;
1378
1376 return -ENOBUFS;
1377
1379 v6_cork->opt->dst1opt = ip6_opt_dup(opt->dst1opt,
1380 sk->sk_allocation);
1381 if (opt->dst1opt && !v6_cork->opt->dst1opt)
1378 nopt->dst1opt = ip6_opt_dup(opt->dst1opt, sk->sk_allocation);
1379 if (opt->dst1opt && !nopt->dst1opt)
1382 return -ENOBUFS;
1383
1380 return -ENOBUFS;
1381
1384 v6_cork->opt->hopopt = ip6_opt_dup(opt->hopopt,
1385 sk->sk_allocation);
1386 if (opt->hopopt && !v6_cork->opt->hopopt)
1382 nopt->hopopt = ip6_opt_dup(opt->hopopt, sk->sk_allocation);
1383 if (opt->hopopt && !nopt->hopopt)
1387 return -ENOBUFS;
1388
1384 return -ENOBUFS;
1385
1389 v6_cork->opt->srcrt = ip6_rthdr_dup(opt->srcrt,
1390 sk->sk_allocation);
1391 if (opt->srcrt && !v6_cork->opt->srcrt)
1386 nopt->srcrt = ip6_rthdr_dup(opt->srcrt, sk->sk_allocation);
1387 if (opt->srcrt && !nopt->srcrt)
1392 return -ENOBUFS;
1393
1394 /* need source address above miyazawa*/
1395 }
1396 dst_hold(&rt->dst);
1397 cork->base.dst = &rt->dst;
1398 cork->fl.u.ip6 = *fl6;
1399 v6_cork->hop_limit = ipc6->hlimit;

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1815 cork->base.flags &= ~IPCORK_ALLFRAG;
1816 skb_dst_set(skb, dst);
1817}
1818
1819static void ip6_cork_release(struct inet_cork_full *cork,
1820 struct inet6_cork *v6_cork)
1821{
1822 if (v6_cork->opt) {
1388 return -ENOBUFS;
1389
1390 /* need source address above miyazawa*/
1391 }
1392 dst_hold(&rt->dst);
1393 cork->base.dst = &rt->dst;
1394 cork->fl.u.ip6 = *fl6;
1395 v6_cork->hop_limit = ipc6->hlimit;

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1811 cork->base.flags &= ~IPCORK_ALLFRAG;
1812 skb_dst_set(skb, dst);
1813}
1814
1815static void ip6_cork_release(struct inet_cork_full *cork,
1816 struct inet6_cork *v6_cork)
1817{
1818 if (v6_cork->opt) {
1823 kfree(v6_cork->opt->dst0opt);
1824 kfree(v6_cork->opt->dst1opt);
1825 kfree(v6_cork->opt->hopopt);
1826 kfree(v6_cork->opt->srcrt);
1827 kfree(v6_cork->opt);
1819 struct ipv6_txoptions *opt = v6_cork->opt;
1820
1821 kfree(opt->dst0opt);
1822 kfree(opt->dst1opt);
1823 kfree(opt->hopopt);
1824 kfree(opt->srcrt);
1825 kfree(opt);
1828 v6_cork->opt = NULL;
1829 }
1830
1831 if (cork->base.dst) {
1832 dst_release(cork->base.dst);
1833 cork->base.dst = NULL;
1834 cork->base.flags &= ~IPCORK_ALLFRAG;
1835 }

--- 174 unchanged lines hidden --- 		1826 v6_cork->opt = NULL;
1827 }
1828
1829 if (cork->base.dst) {
1830 dst_release(cork->base.dst);
1831 cork->base.dst = NULL;
1832 cork->base.flags &= ~IPCORK_ALLFRAG;
1833 }

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