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sctputil.c (170462) sctputil.c (170606)
1/*-
2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * a) Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.

--- 17 unchanged lines hidden (view full) ---

26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/* $KAME: sctputil.c,v 1.37 2005/03/07 23:26:09 itojun Exp $ */
32
33#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * a) Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.

--- 17 unchanged lines hidden (view full) ---

26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/* $KAME: sctputil.c,v 1.37 2005/03/07 23:26:09 itojun Exp $ */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/sys/netinet/sctputil.c 170462 2007-06-09 13:46:57Z rrs $");
34__FBSDID("$FreeBSD: head/sys/netinet/sctputil.c 170606 2007-06-12 11:21:00Z rrs $");
35
36#include <netinet/sctp_os.h>
37#include <netinet/sctp_pcb.h>
38#include <netinet/sctputil.h>
39#include <netinet/sctp_var.h>
40#include <netinet/sctp_sysctl.h>
41#ifdef INET6
42#include <netinet6/sctp6_var.h>

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5872 if ((at + incr) > (size_t)limit) {
5873 *totaddr = i;
5874 break;
5875 }
5876 sa = (struct sockaddr *)((caddr_t)sa + incr);
5877 }
5878 return ((struct sctp_tcb *)NULL);
5879}
35
36#include <netinet/sctp_os.h>
37#include <netinet/sctp_pcb.h>
38#include <netinet/sctputil.h>
39#include <netinet/sctp_var.h>
40#include <netinet/sctp_sysctl.h>
41#ifdef INET6
42#include <netinet6/sctp6_var.h>

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5872 if ((at + incr) > (size_t)limit) {
5873 *totaddr = i;
5874 break;
5875 }
5876 sa = (struct sockaddr *)((caddr_t)sa + incr);
5877 }
5878 return ((struct sctp_tcb *)NULL);
5879}
5880
5881
5882/*
5883 * sctp_bindx(ADD) for one address.
5884 * assumes all arguments are valid/checked by caller.
5885 */
5886void
5887sctp_bindx_add_address(struct socket *so, struct sctp_inpcb *inp,
5888 struct sockaddr *sa, sctp_assoc_t assoc_id,
5889 uint32_t vrf_id, int *error, void *p)
5890{
5891 struct sockaddr *addr_touse;
5892 struct sockaddr_in sin;
5893
5894 /* see if we're bound all already! */
5895 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
5896 *error = EINVAL;
5897 return;
5898 }
5899 addr_touse = sa;
5900#if defined(INET6)
5901 if (sa->sa_family == AF_INET6) {
5902 struct sockaddr_in6 *sin6;
5903
5904 if (sa->sa_len != sizeof(struct sockaddr_in6)) {
5905 *error = EINVAL;
5906 return;
5907 }
5908 sin6 = (struct sockaddr_in6 *)addr_touse;
5909 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5910 in6_sin6_2_sin(&sin, sin6);
5911 addr_touse = (struct sockaddr *)&sin;
5912 }
5913 }
5914#endif
5915 if (sa->sa_family == AF_INET) {
5916 if (sa->sa_len != sizeof(struct sockaddr_in)) {
5917 *error = EINVAL;
5918 return;
5919 }
5920 }
5921 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
5922 if (p == NULL) {
5923 /* Can't get proc for Net/Open BSD */
5924 *error = EINVAL;
5925 return;
5926 }
5927 *error = sctp_inpcb_bind(so, addr_touse, p);
5928 return;
5929 }
5930 /*
5931 * No locks required here since bind and mgmt_ep_sa all do their own
5932 * locking. If we do something for the FIX: below we may need to
5933 * lock in that case.
5934 */
5935 if (assoc_id == 0) {
5936 /* add the address */
5937 struct sctp_inpcb *lep;
5938
5939 ((struct sockaddr_in *)addr_touse)->sin_port = inp->sctp_lport;
5940 lep = sctp_pcb_findep(addr_touse, 1, 0, vrf_id);
5941 if (lep != NULL) {
5942 /*
5943 * We must decrement the refcount since we have the
5944 * ep already and are binding. No remove going on
5945 * here.
5946 */
5947 SCTP_INP_DECR_REF(inp);
5948 }
5949 if (lep == inp) {
5950 /* already bound to it.. ok */
5951 return;
5952 } else if (lep == NULL) {
5953 ((struct sockaddr_in *)addr_touse)->sin_port = 0;
5954 *error = sctp_addr_mgmt_ep_sa(inp, addr_touse,
5955 SCTP_ADD_IP_ADDRESS,
5956 vrf_id);
5957 } else {
5958 *error = EADDRINUSE;
5959 }
5960 if (*error)
5961 return;
5962 } else {
5963 /*
5964 * FIX: decide whether we allow assoc based bindx
5965 */
5966 }
5967}
5968
5969/*
5970 * sctp_bindx(DELETE) for one address.
5971 * assumes all arguments are valid/checked by caller.
5972 */
5973void
5974sctp_bindx_delete_address(struct socket *so, struct sctp_inpcb *inp,
5975 struct sockaddr *sa, sctp_assoc_t assoc_id,
5976 uint32_t vrf_id, int *error)
5977{
5978 struct sockaddr *addr_touse;
5979 struct sockaddr_in sin;
5980
5981 /* see if we're bound all already! */
5982 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
5983 *error = EINVAL;
5984 return;
5985 }
5986 addr_touse = sa;
5987#if defined(INET6)
5988 if (sa->sa_family == AF_INET6) {
5989 struct sockaddr_in6 *sin6;
5990
5991 if (sa->sa_len != sizeof(struct sockaddr_in6)) {
5992 *error = EINVAL;
5993 return;
5994 }
5995 sin6 = (struct sockaddr_in6 *)addr_touse;
5996 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5997 in6_sin6_2_sin(&sin, sin6);
5998 addr_touse = (struct sockaddr *)&sin;
5999 }
6000 }
6001#endif
6002 if (sa->sa_family == AF_INET) {
6003 if (sa->sa_len != sizeof(struct sockaddr_in)) {
6004 *error = EINVAL;
6005 return;
6006 }
6007 }
6008 /*
6009 * No lock required mgmt_ep_sa does its own locking. If the FIX:
6010 * below is ever changed we may need to lock before calling
6011 * association level binding.
6012 */
6013 if (assoc_id == 0) {
6014 /* delete the address */
6015 *error = sctp_addr_mgmt_ep_sa(inp, addr_touse,
6016 SCTP_DEL_IP_ADDRESS,
6017 vrf_id);
6018 } else {
6019 /*
6020 * FIX: decide whether we allow assoc based bindx
6021 */
6022 }
6023}