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Diffstat (limited to 'net/sctp/protocol.c')
-rw-r--r--net/sctp/protocol.c139
1 files changed, 89 insertions, 50 deletions
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index ad0a4069b95..f90091a1b9c 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -337,14 +337,14 @@ static int sctp_v4_cmp_addr(const union sctp_addr *addr1,
static void sctp_v4_inaddr_any(union sctp_addr *addr, __be16 port)
{
addr->v4.sin_family = AF_INET;
- addr->v4.sin_addr.s_addr = INADDR_ANY;
+ addr->v4.sin_addr.s_addr = htonl(INADDR_ANY);
addr->v4.sin_port = port;
}
/* Is this a wildcard address? */
static int sctp_v4_is_any(const union sctp_addr *addr)
{
- return INADDR_ANY == addr->v4.sin_addr.s_addr;
+ return htonl(INADDR_ANY) == addr->v4.sin_addr.s_addr;
}
/* This function checks if the address is a valid address to be used for
@@ -375,7 +375,7 @@ static int sctp_v4_available(union sctp_addr *addr, struct sctp_sock *sp)
int ret = inet_addr_type(&init_net, addr->v4.sin_addr.s_addr);
- if (addr->v4.sin_addr.s_addr != INADDR_ANY &&
+ if (addr->v4.sin_addr.s_addr != htonl(INADDR_ANY) &&
ret != RTN_LOCAL &&
!sp->inet.freebind &&
!sysctl_ip_nonlocal_bind)
@@ -785,8 +785,8 @@ static int sctp_inet_cmp_addr(const union sctp_addr *addr1,
/* PF_INET only supports AF_INET addresses. */
if (addr1->sa.sa_family != addr2->sa.sa_family)
return 0;
- if (INADDR_ANY == addr1->v4.sin_addr.s_addr ||
- INADDR_ANY == addr2->v4.sin_addr.s_addr)
+ if (htonl(INADDR_ANY) == addr1->v4.sin_addr.s_addr ||
+ htonl(INADDR_ANY) == addr2->v4.sin_addr.s_addr)
return 1;
if (addr1->v4.sin_addr.s_addr == addr2->v4.sin_addr.s_addr)
return 1;
@@ -992,6 +992,58 @@ static void cleanup_sctp_mibs(void)
free_percpu(sctp_statistics[1]);
}
+static void sctp_v4_pf_init(void)
+{
+ /* Initialize the SCTP specific PF functions. */
+ sctp_register_pf(&sctp_pf_inet, PF_INET);
+ sctp_register_af(&sctp_af_inet);
+}
+
+static void sctp_v4_pf_exit(void)
+{
+ list_del(&sctp_af_inet.list);
+}
+
+static int sctp_v4_protosw_init(void)
+{
+ int rc;
+
+ rc = proto_register(&sctp_prot, 1);
+ if (rc)
+ return rc;
+
+ /* Register SCTP(UDP and TCP style) with socket layer. */
+ inet_register_protosw(&sctp_seqpacket_protosw);
+ inet_register_protosw(&sctp_stream_protosw);
+
+ return 0;
+}
+
+static void sctp_v4_protosw_exit(void)
+{
+ inet_unregister_protosw(&sctp_stream_protosw);
+ inet_unregister_protosw(&sctp_seqpacket_protosw);
+ proto_unregister(&sctp_prot);
+}
+
+static int sctp_v4_add_protocol(void)
+{
+ /* Register notifier for inet address additions/deletions. */
+ register_inetaddr_notifier(&sctp_inetaddr_notifier);
+
+ /* Register SCTP with inet layer. */
+ if (inet_add_protocol(&sctp_protocol, IPPROTO_SCTP) < 0)
+ return -EAGAIN;
+
+ return 0;
+}
+
+static void sctp_v4_del_protocol(void)
+{
+ inet_del_protocol(&sctp_protocol, IPPROTO_SCTP);
+ unregister_inetaddr_notifier(&sctp_inetaddr_notifier);
+}
+
/* Initialize the universe into something sensible. */
SCTP_STATIC __init int sctp_init(void)
{
@@ -1035,8 +1087,6 @@ SCTP_STATIC __init int sctp_init(void)
/* Initialize object count debugging. */
sctp_dbg_objcnt_init();
- /* Initialize the SCTP specific PF functions. */
- sctp_register_pf(&sctp_pf_inet, PF_INET);
/*
* 14. Suggested SCTP Protocol Parameter Values
*/
@@ -1194,19 +1244,22 @@ SCTP_STATIC __init int sctp_init(void)
sctp_sysctl_register();
INIT_LIST_HEAD(&sctp_address_families);
- sctp_register_af(&sctp_af_inet);
+ sctp_v4_pf_init();
+ sctp_v6_pf_init();
- status = proto_register(&sctp_prot, 1);
- if (status)
- goto err_proto_register;
+ /* Initialize the local address list. */
+ INIT_LIST_HEAD(&sctp_local_addr_list);
+ spin_lock_init(&sctp_local_addr_lock);
+ sctp_get_local_addr_list();
- /* Register SCTP(UDP and TCP style) with socket layer. */
- inet_register_protosw(&sctp_seqpacket_protosw);
- inet_register_protosw(&sctp_stream_protosw);
+ status = sctp_v4_protosw_init();
- status = sctp_v6_init();
if (status)
- goto err_v6_init;
+ goto err_protosw_init;
+
+ status = sctp_v6_protosw_init();
+ if (status)
+ goto err_v6_protosw_init;
/* Initialize the control inode/socket for handling OOTB packets. */
if ((status = sctp_ctl_sock_init())) {
@@ -1215,19 +1268,9 @@ SCTP_STATIC __init int sctp_init(void)
goto err_ctl_sock_init;
}
- /* Initialize the local address list. */
- INIT_LIST_HEAD(&sctp_local_addr_list);
- spin_lock_init(&sctp_local_addr_lock);
- sctp_get_local_addr_list();
-
- /* Register notifier for inet address additions/deletions. */
- register_inetaddr_notifier(&sctp_inetaddr_notifier);
-
- /* Register SCTP with inet layer. */
- if (inet_add_protocol(&sctp_protocol, IPPROTO_SCTP) < 0) {
- status = -EAGAIN;
+ status = sctp_v4_add_protocol();
+ if (status)
goto err_add_protocol;
- }
/* Register SCTP with inet6 layer. */
status = sctp_v6_add_protocol();
@@ -1238,18 +1281,18 @@ SCTP_STATIC __init int sctp_init(void)
out:
return status;
err_v6_add_protocol:
- inet_del_protocol(&sctp_protocol, IPPROTO_SCTP);
- unregister_inetaddr_notifier(&sctp_inetaddr_notifier);
+ sctp_v6_del_protocol();
err_add_protocol:
- sctp_free_local_addr_list();
+ sctp_v4_del_protocol();
sock_release(sctp_ctl_socket);
err_ctl_sock_init:
- sctp_v6_exit();
-err_v6_init:
- inet_unregister_protosw(&sctp_stream_protosw);
- inet_unregister_protosw(&sctp_seqpacket_protosw);
- proto_unregister(&sctp_prot);
-err_proto_register:
+ sctp_v6_protosw_exit();
+err_v6_protosw_init:
+ sctp_v4_protosw_exit();
+err_protosw_init:
+ sctp_free_local_addr_list();
+ sctp_v4_pf_exit();
+ sctp_v6_pf_exit();
sctp_sysctl_unregister();
list_del(&sctp_af_inet.list);
free_pages((unsigned long)sctp_port_hashtable,
@@ -1282,23 +1325,21 @@ SCTP_STATIC __exit void sctp_exit(void)
/* Unregister with inet6/inet layers. */
sctp_v6_del_protocol();
- inet_del_protocol(&sctp_protocol, IPPROTO_SCTP);
-
- /* Unregister notifier for inet address additions/deletions. */
- unregister_inetaddr_notifier(&sctp_inetaddr_notifier);
-
- /* Free the local address list. */
- sctp_free_local_addr_list();
+ sctp_v4_del_protocol();
/* Free the control endpoint. */
sock_release(sctp_ctl_socket);
- /* Cleanup v6 initializations. */
- sctp_v6_exit();
+ /* Free protosw registrations */
+ sctp_v6_protosw_exit();
+ sctp_v4_protosw_exit();
+
+ /* Free the local address list. */
+ sctp_free_local_addr_list();
/* Unregister with socket layer. */
- inet_unregister_protosw(&sctp_stream_protosw);
- inet_unregister_protosw(&sctp_seqpacket_protosw);
+ sctp_v6_pf_exit();
+ sctp_v4_pf_exit();
sctp_sysctl_unregister();
list_del(&sctp_af_inet.list);
@@ -1317,8 +1358,6 @@ SCTP_STATIC __exit void sctp_exit(void)
kmem_cache_destroy(sctp_chunk_cachep);
kmem_cache_destroy(sctp_bucket_cachep);
-
- proto_unregister(&sctp_prot);
}
module_init(sctp_init);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-27 09:02:15 +0000