diff options
| -rw-r--r-- | include/net/ipv6.h | 2 | ||||
| -rw-r--r-- | include/net/transp_v6.h | 12 | ||||
| -rw-r--r-- | net/ipv6/af_inet6.c | 77 | ||||
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 3 | ||||
| -rw-r--r-- | net/ipv6/raw.c | 52 | ||||
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 36 | ||||
| -rw-r--r-- | net/ipv6/udp.c | 26 | ||||
| -rw-r--r-- | net/ipv6/udplite.c | 25 |
8 files changed, 168 insertions, 65 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 4d910658095..f2adedff927 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -545,7 +545,7 @@ extern int compat_ipv6_getsockopt(struct sock *sk, char __user *optval, int __user *optlen); -extern void ipv6_packet_init(void); +extern int ipv6_packet_init(void); extern void ipv6_packet_cleanup(void); diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h index aa9a4a6b99d..27394e0447d 100644 --- a/include/net/transp_v6.h +++ b/include/net/transp_v6.h @@ -23,10 +23,14 @@ extern int ipv6_frag_init(void); extern void ipv6_frag_exit(void); /* transport protocols */ -extern void rawv6_init(void); -extern void udpv6_init(void); -extern void udplitev6_init(void); -extern void tcpv6_init(void); +extern int rawv6_init(void); +extern void rawv6_exit(void); +extern int udpv6_init(void); +extern void udpv6_exit(void); +extern int udplitev6_init(void); +extern void udplitev6_exit(void); +extern int tcpv6_init(void); +extern void tcpv6_exit(void); extern int udpv6_connect(struct sock *sk, struct sockaddr *uaddr, diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 53b06de696b..34c20533ba5 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -529,42 +529,6 @@ static struct net_proto_family inet6_family_ops = { .owner = THIS_MODULE, }; -/* Same as inet6_dgram_ops, sans udp_poll. */ -static const struct proto_ops inet6_sockraw_ops = { - .family = PF_INET6, - .owner = THIS_MODULE, - .release = inet6_release, - .bind = inet6_bind, - .connect = inet_dgram_connect, /* ok */ - .socketpair = sock_no_socketpair, /* a do nothing */ - .accept = sock_no_accept, /* a do nothing */ - .getname = inet6_getname, - .poll = datagram_poll, /* ok */ - .ioctl = inet6_ioctl, /* must change */ - .listen = sock_no_listen, /* ok */ - .shutdown = inet_shutdown, /* ok */ - .setsockopt = sock_common_setsockopt, /* ok */ - .getsockopt = sock_common_getsockopt, /* ok */ - .sendmsg = inet_sendmsg, /* ok */ - .recvmsg = sock_common_recvmsg, /* ok */ - .mmap = sock_no_mmap, - .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif -}; - -static struct inet_protosw rawv6_protosw = { - .type = SOCK_RAW, - .protocol = IPPROTO_IP, /* wild card */ - .prot = &rawv6_prot, - .ops = &inet6_sockraw_ops, - .capability = CAP_NET_RAW, - .no_check = UDP_CSUM_DEFAULT, - .flags = INET_PROTOSW_REUSE, -}; - int inet6_register_protosw(struct inet_protosw *p) { struct list_head *lh; @@ -771,7 +735,6 @@ static int __init inet6_init(void) __this_module.can_unload = &ipv6_unload; #endif #endif - err = proto_register(&tcpv6_prot, 1); if (err) goto out; @@ -796,14 +759,16 @@ static int __init inet6_init(void) /* We MUST register RAW sockets before we create the ICMP6, * IGMP6, or NDISC control sockets. */ - inet6_register_protosw(&rawv6_protosw); + err = rawv6_init(); + if (err) + goto out_unregister_raw_proto; /* Register the family here so that the init calls below will * be able to create sockets. (?? is this dangerous ??) */ err = sock_register(&inet6_family_ops); if (err) - goto out_unregister_raw_proto; + goto out_sock_register_fail; /* Initialise ipv6 mibs */ err = init_ipv6_mibs(); @@ -871,15 +836,32 @@ static int __init inet6_init(void) goto ipv6_frag_fail; /* Init v6 transport protocols. */ - udpv6_init(); - udplitev6_init(); - tcpv6_init(); + err = udpv6_init(); + if (err) + goto udpv6_fail; - ipv6_packet_init(); - err = 0; + err = udplitev6_init(); + if (err) + goto udplitev6_fail; + + err = tcpv6_init(); + if (err) + goto tcpv6_fail; + + err = ipv6_packet_init(); + if (err) + goto ipv6_packet_fail; out: return err; +ipv6_packet_fail: + tcpv6_exit(); +tcpv6_fail: + udplitev6_exit(); +udplitev6_fail: + udpv6_exit(); +udpv6_fail: + ipv6_frag_exit(); ipv6_frag_fail: ipv6_exthdrs_exit(); ipv6_exthdrs_fail: @@ -920,6 +902,8 @@ icmp_fail: out_unregister_sock: sock_unregister(PF_INET6); rtnl_unregister_all(PF_INET6); +out_sock_register_fail: + rawv6_exit(); out_unregister_raw_proto: proto_unregister(&rawv6_prot); out_unregister_udplite_proto: @@ -939,6 +923,10 @@ static void __exit inet6_exit(void) /* Disallow any further netlink messages */ rtnl_unregister_all(PF_INET6); + udpv6_exit(); + udplitev6_exit(); + tcpv6_exit(); + /* Cleanup code parts. */ ipv6_packet_cleanup(); ipv6_frag_exit(); @@ -961,6 +949,7 @@ static void __exit inet6_exit(void) igmp6_cleanup(); ndisc_cleanup(); icmpv6_cleanup(); + rawv6_exit(); #ifdef CONFIG_SYSCTL ipv6_sysctl_unregister(); #endif diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 8c5f80fd03a..20fece4ad3d 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -1128,9 +1128,10 @@ int compat_ipv6_getsockopt(struct sock *sk, int level, int optname, EXPORT_SYMBOL(compat_ipv6_getsockopt); #endif -void __init ipv6_packet_init(void) +int __init ipv6_packet_init(void) { dev_add_pack(&ipv6_packet_type); + return 0; } void ipv6_packet_cleanup(void) diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index b34631e1b01..850b83e430b 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1273,3 +1273,55 @@ void raw6_proc_exit(void) proc_net_remove(&init_net, "raw6"); } #endif /* CONFIG_PROC_FS */ + +/* Same as inet6_dgram_ops, sans udp_poll. */ +static const struct proto_ops inet6_sockraw_ops = { + .family = PF_INET6, + .owner = THIS_MODULE, + .release = inet6_release, + .bind = inet6_bind, + .connect = inet_dgram_connect, /* ok */ + .socketpair = sock_no_socketpair, /* a do nothing */ + .accept = sock_no_accept, /* a do nothing */ + .getname = inet6_getname, + .poll = datagram_poll, /* ok */ + .ioctl = inet6_ioctl, /* must change */ + .listen = sock_no_listen, /* ok */ + .shutdown = inet_shutdown, /* ok */ + .setsockopt = sock_common_setsockopt, /* ok */ + .getsockopt = sock_common_getsockopt, /* ok */ + .sendmsg = inet_sendmsg, /* ok */ + .recvmsg = sock_common_recvmsg, /* ok */ + .mmap = sock_no_mmap, + .sendpage = sock_no_sendpage, +#ifdef CONFIG_COMPAT + .compat_setsockopt = compat_sock_common_setsockopt, + .compat_getsockopt = compat_sock_common_getsockopt, +#endif +}; + +static struct inet_protosw rawv6_protosw = { + .type = SOCK_RAW, + .protocol = IPPROTO_IP, /* wild card */ + .prot = &rawv6_prot, + .ops = &inet6_sockraw_ops, + .capability = CAP_NET_RAW, + .no_check = UDP_CSUM_DEFAULT, + .flags = INET_PROTOSW_REUSE, +}; + +int __init rawv6_init(void) +{ + int ret; + + ret = inet6_register_protosw(&rawv6_protosw); + if (ret) + goto out; +out: + return ret; +} + +void __exit rawv6_exit(void) +{ + inet6_unregister_protosw(&rawv6_protosw); +} diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 93980c3b83e..9544beb6d1c 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -2166,14 +2166,36 @@ static struct inet_protosw tcpv6_protosw = { INET_PROTOSW_ICSK, }; -void __init tcpv6_init(void) +int __init tcpv6_init(void) { + int ret; + + ret = inet6_add_protocol(&tcpv6_protocol, IPPROTO_TCP); + if (ret) + goto out; + /* register inet6 protocol */ - if (inet6_add_protocol(&tcpv6_protocol, IPPROTO_TCP) < 0) - printk(KERN_ERR "tcpv6_init: Could not register protocol\n"); - inet6_register_protosw(&tcpv6_protosw); + ret = inet6_register_protosw(&tcpv6_protosw); + if (ret) + goto out_tcpv6_protocol; + + ret = inet_csk_ctl_sock_create(&tcp6_socket, PF_INET6, + SOCK_RAW, IPPROTO_TCP); + if (ret) + goto out_tcpv6_protosw; +out: + return ret; - if (inet_csk_ctl_sock_create(&tcp6_socket, PF_INET6, SOCK_RAW, - IPPROTO_TCP) < 0) - panic("Failed to create the TCPv6 control socket.\n"); +out_tcpv6_protocol: + inet6_del_protocol(&tcpv6_protocol, IPPROTO_TCP); +out_tcpv6_protosw: + inet6_unregister_protosw(&tcpv6_protosw); + goto out; +} + +void __exit tcpv6_exit(void) +{ + sock_release(tcp6_socket); + inet6_unregister_protosw(&tcpv6_protosw); + inet6_del_protocol(&tcpv6_protocol, IPPROTO_TCP); } diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index fa640765385..1e3bd39f54e 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1016,9 +1016,27 @@ static struct inet_protosw udpv6_protosw = { }; -void __init udpv6_init(void) +int __init udpv6_init(void) { - if (inet6_add_protocol(&udpv6_protocol, IPPROTO_UDP) < 0) - printk(KERN_ERR "udpv6_init: Could not register protocol\n"); - inet6_register_protosw(&udpv6_protosw); + int ret; + + ret = inet6_add_protocol(&udpv6_protocol, IPPROTO_UDP); + if (ret) + goto out; + + ret = inet6_register_protosw(&udpv6_protosw); + if (ret) + goto out_udpv6_protocol; +out: + return ret; + +out_udpv6_protocol: + inet6_del_protocol(&udpv6_protocol, IPPROTO_UDP); + goto out; +} + +void __exit udpv6_exit(void) +{ + inet6_unregister_protosw(&udpv6_protosw); + inet6_del_protocol(&udpv6_protocol, IPPROTO_UDP); } diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c index 5a0379f7141..f20b376689f 100644 --- a/net/ipv6/udplite.c +++ b/net/ipv6/udplite.c @@ -77,12 +77,29 @@ static struct inet_protosw udplite6_protosw = { .flags = INET_PROTOSW_PERMANENT, }; -void __init udplitev6_init(void) +int __init udplitev6_init(void) { - if (inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE) < 0) - printk(KERN_ERR "%s: Could not register.\n", __FUNCTION__); + int ret; - inet6_register_protosw(&udplite6_protosw); + ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); + if (ret) + goto out; + + ret = inet6_register_protosw(&udplite6_protosw); + if (ret) + goto out_udplitev6_protocol; +out: + return ret; + +out_udplitev6_protocol: + inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); + goto out; +} + +void __exit udplitev6_exit(void) +{ + inet6_unregister_protosw(&udplite6_protosw); + inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); } #ifdef CONFIG_PROC_FS |