raw_ip.c (b8103ca76de09414775aa2eaca7b0e1bca59136c) raw_ip.c (3d2041c0353d3cc44bd2a6e37bf1c6e341d2b4db)
1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1982, 1986, 1988, 1993
5 * The Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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401 m_freem(m);
402 return (IPPROTO_DONE);
403}
404
405/*
406 * Generate IP header and pass packet to ip_output. Tack on options user may
407 * have setup with control call.
408 */
1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1982, 1986, 1988, 1993
5 * The Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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401 m_freem(m);
402 return (IPPROTO_DONE);
403}
404
405/*
406 * Generate IP header and pass packet to ip_output. Tack on options user may
407 * have setup with control call.
408 */
409int
410rip_output(struct mbuf *m, struct socket *so, ...)
409static int
410rip_send(struct socket *so, int pruflags, struct mbuf *m, struct sockaddr *nam,
411 struct mbuf *control, struct thread *td)
411{
412 struct epoch_tracker et;
413 struct ip *ip;
412{
413 struct epoch_tracker et;
414 struct ip *ip;
414 int error;
415 struct inpcb *inp = sotoinpcb(so);
416 va_list ap;
417 u_long dst;
418 int flags = ((so->so_options & SO_DONTROUTE) ? IP_ROUTETOIF : 0) |
419 IP_ALLOWBROADCAST;
420 int cnt, hlen;
415 struct inpcb *inp;
416 in_addr_t *dst;
417 int error, flags, cnt, hlen;
421 u_char opttype, optlen, *cp;
422
418 u_char opttype, optlen, *cp;
419
423 va_start(ap, so);
424 dst = va_arg(ap, u_long);
425 va_end(ap);
420 inp = sotoinpcb(so);
421 KASSERT(inp != NULL, ("rip_send: inp == NULL"));
426
422
423 if (control != NULL) {
424 m_freem(control);
425 control = NULL;
426 }
427
428 if (so->so_state & SS_ISCONNECTED) {
429 if (nam) {
430 error = EISCONN;
431 m_freem(m);
432 return (error);
433 }
434 dst = &inp->inp_faddr.s_addr;
435 } else {
436 if (nam == NULL)
437 error = ENOTCONN;
438 else if (nam->sa_family != AF_INET)
439 error = EAFNOSUPPORT;
440 else if (nam->sa_len != sizeof(struct sockaddr_in))
441 error = EINVAL;
442 else
443 error = 0;
444 if (error != 0) {
445 m_freem(m);
446 return (error);
447 }
448 dst = &((struct sockaddr_in *)nam)->sin_addr.s_addr;
449 }
450
451 flags = ((so->so_options & SO_DONTROUTE) ? IP_ROUTETOIF : 0) |
452 IP_ALLOWBROADCAST;
453
427 /*
428 * If the user handed us a complete IP packet, use it. Otherwise,
429 * allocate an mbuf for a header and fill it in.
430 */
431 if ((inp->inp_flags & INP_HDRINCL) == 0) {
432 if (m->m_pkthdr.len + sizeof(struct ip) > IP_MAXPACKET) {
433 m_freem(m);
434 return(EMSGSIZE);

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442 ip->ip_tos = inp->inp_ip_tos;
443 if (inp->inp_flags & INP_DONTFRAG)
444 ip->ip_off = htons(IP_DF);
445 else
446 ip->ip_off = htons(0);
447 ip->ip_p = inp->inp_ip_p;
448 ip->ip_len = htons(m->m_pkthdr.len);
449 ip->ip_src = inp->inp_laddr;
454 /*
455 * If the user handed us a complete IP packet, use it. Otherwise,
456 * allocate an mbuf for a header and fill it in.
457 */
458 if ((inp->inp_flags & INP_HDRINCL) == 0) {
459 if (m->m_pkthdr.len + sizeof(struct ip) > IP_MAXPACKET) {
460 m_freem(m);
461 return(EMSGSIZE);

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469 ip->ip_tos = inp->inp_ip_tos;
470 if (inp->inp_flags & INP_DONTFRAG)
471 ip->ip_off = htons(IP_DF);
472 else
473 ip->ip_off = htons(0);
474 ip->ip_p = inp->inp_ip_p;
475 ip->ip_len = htons(m->m_pkthdr.len);
476 ip->ip_src = inp->inp_laddr;
450 ip->ip_dst.s_addr = dst;
477 ip->ip_dst.s_addr = *dst;
451#ifdef ROUTE_MPATH
452 if (CALC_FLOWID_OUTBOUND) {
453 uint32_t hash_type, hash_val;
454
455 hash_val = fib4_calc_software_hash(ip->ip_src,
456 ip->ip_dst, 0, 0, ip->ip_p, &hash_type);
457 m->m_pkthdr.flowid = hash_val;
458 M_HASHTYPE_SET(m, hash_type);

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966 inp = sotoinpcb(so);
967 KASSERT(inp != NULL, ("rip_shutdown: inp == NULL"));
968
969 INP_WLOCK(inp);
970 socantsendmore(so);
971 INP_WUNLOCK(inp);
972 return (0);
973}
478#ifdef ROUTE_MPATH
479 if (CALC_FLOWID_OUTBOUND) {
480 uint32_t hash_type, hash_val;
481
482 hash_val = fib4_calc_software_hash(ip->ip_src,
483 ip->ip_dst, 0, 0, ip->ip_p, &hash_type);
484 m->m_pkthdr.flowid = hash_val;
485 M_HASHTYPE_SET(m, hash_type);

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993 inp = sotoinpcb(so);
994 KASSERT(inp != NULL, ("rip_shutdown: inp == NULL"));
995
996 INP_WLOCK(inp);
997 socantsendmore(so);
998 INP_WUNLOCK(inp);
999 return (0);
1000}
974
975static int
976rip_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
977 struct mbuf *control, struct thread *td)
978{
979 struct inpcb *inp;
980 u_long dst;
981 int error;
982
983 inp = sotoinpcb(so);
984 KASSERT(inp != NULL, ("rip_send: inp == NULL"));
985
986 if (control != NULL) {
987 m_freem(control);
988 control = NULL;
989 }
990
991 /*
992 * Note: 'dst' reads below are unlocked.
993 */
994 if (so->so_state & SS_ISCONNECTED) {
995 if (nam) {
996 error = EISCONN;
997 goto release;
998 }
999 dst = inp->inp_faddr.s_addr; /* Unlocked read. */
1000 } else {
1001 error = 0;
1002 if (nam == NULL)
1003 error = ENOTCONN;
1004 else if (nam->sa_family != AF_INET)
1005 error = EAFNOSUPPORT;
1006 else if (nam->sa_len != sizeof(struct sockaddr_in))
1007 error = EINVAL;
1008 if (error != 0)
1009 goto release;
1010 dst = ((struct sockaddr_in *)nam)->sin_addr.s_addr;
1011 }
1012 return (rip_output(m, so, dst));
1013
1014release:
1015 m_freem(m);
1016 return (error);
1017}
1018#endif /* INET */
1019
1020static int
1021rip_pcblist(SYSCTL_HANDLER_ARGS)
1022{
1023 struct inpcb_iterator inpi = INP_ALL_ITERATOR(&V_ripcbinfo,
1024 INPLOOKUP_RLOCKPCB);
1025 struct xinpgen xig;

--- 79 unchanged lines hidden --- 		1001#endif /* INET */
1002
1003static int
1004rip_pcblist(SYSCTL_HANDLER_ARGS)
1005{
1006 struct inpcb_iterator inpi = INP_ALL_ITERATOR(&V_ripcbinfo,
1007 INPLOOKUP_RLOCKPCB);
1008 struct xinpgen xig;

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