X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=net%2Fipv4%2Faf_inet.c;h=45ced52c03d46db84900228d10bfb391053d0248;hb=557922584d9c5b6b990bcfb2fec3134f0e73a05d;hp=864009643675fe195be002f09e50bfeb69b0e417;hpb=e947382ed38563544d2b5b79f6ea90bdde350e5e;p=linux-2.6-omap-h63xx.git diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 86400964367..45ced52c03d 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -87,6 +87,7 @@ #include #include #include +#include #include #include @@ -217,6 +218,26 @@ out: return err; } +u32 inet_ehash_secret __read_mostly; +EXPORT_SYMBOL(inet_ehash_secret); + +/* + * inet_ehash_secret must be set exactly once + * Instead of using a dedicated spinlock, we (ab)use inetsw_lock + */ +void build_ehash_secret(void) +{ + u32 rnd; + do { + get_random_bytes(&rnd, sizeof(rnd)); + } while (rnd == 0); + spin_lock_bh(&inetsw_lock); + if (!inet_ehash_secret) + inet_ehash_secret = rnd; + spin_unlock_bh(&inetsw_lock); +} +EXPORT_SYMBOL(build_ehash_secret); + /* * Create an inet socket. */ @@ -233,6 +254,11 @@ static int inet_create(struct socket *sock, int protocol) int try_loading_module = 0; int err; + if (sock->type != SOCK_RAW && + sock->type != SOCK_DGRAM && + !inet_ehash_secret) + build_ehash_secret(); + sock->state = SS_UNCONNECTED; /* Look for the requested type/protocol pair. */ @@ -550,7 +576,7 @@ int inet_stream_connect(struct socket *sock, struct sockaddr *uaddr, if (err < 0) goto out; - sock->state = SS_CONNECTING; + sock->state = SS_CONNECTING; /* Just entered SS_CONNECTING state; the only * difference is that return value in non-blocking @@ -755,6 +781,9 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) case SIOCGSTAMP: err = sock_get_timestamp(sk, (struct timeval __user *)arg); break; + case SIOCGSTAMPNS: + err = sock_get_timestampns(sk, (struct timespec __user *)arg); + break; case SIOCADDRT: case SIOCDELRT: case SIOCRTMSG: @@ -878,36 +907,36 @@ static struct net_proto_family inet_family_ops = { */ static struct inet_protosw inetsw_array[] = { - { - .type = SOCK_STREAM, - .protocol = IPPROTO_TCP, - .prot = &tcp_prot, - .ops = &inet_stream_ops, - .capability = -1, - .no_check = 0, - .flags = INET_PROTOSW_PERMANENT | + { + .type = SOCK_STREAM, + .protocol = IPPROTO_TCP, + .prot = &tcp_prot, + .ops = &inet_stream_ops, + .capability = -1, + .no_check = 0, + .flags = INET_PROTOSW_PERMANENT | INET_PROTOSW_ICSK, - }, - - { - .type = SOCK_DGRAM, - .protocol = IPPROTO_UDP, - .prot = &udp_prot, - .ops = &inet_dgram_ops, - .capability = -1, - .no_check = UDP_CSUM_DEFAULT, - .flags = INET_PROTOSW_PERMANENT, + }, + + { + .type = SOCK_DGRAM, + .protocol = IPPROTO_UDP, + .prot = &udp_prot, + .ops = &inet_dgram_ops, + .capability = -1, + .no_check = UDP_CSUM_DEFAULT, + .flags = INET_PROTOSW_PERMANENT, }, - + { - .type = SOCK_RAW, - .protocol = IPPROTO_IP, /* wild card */ - .prot = &raw_prot, - .ops = &inet_sockraw_ops, - .capability = CAP_NET_RAW, - .no_check = UDP_CSUM_DEFAULT, - .flags = INET_PROTOSW_REUSE, + .type = SOCK_RAW, + .protocol = IPPROTO_IP, /* wild card */ + .prot = &raw_prot, + .ops = &inet_sockraw_ops, + .capability = CAP_NET_RAW, + .no_check = UDP_CSUM_DEFAULT, + .flags = INET_PROTOSW_REUSE, } }; @@ -946,7 +975,7 @@ void inet_register_protosw(struct inet_protosw *p) /* Add the new entry after the last permanent entry if any, so that * the new entry does not override a permanent entry when matched with * a wild-card protocol. But it is allowed to override any existing - * non-permanent entry. This means that when we remove this entry, the + * non-permanent entry. This means that when we remove this entry, the * system automatically returns to the old behavior. */ list_add_rcu(&p->list, last_perm); @@ -1007,7 +1036,7 @@ static int inet_sk_reselect_saddr(struct sock *sk) RT_CONN_FLAGS(sk), sk->sk_bound_dev_if, sk->sk_protocol, - inet->sport, inet->dport, sk); + inet->sport, inet->dport, sk, 0); if (err) return err; @@ -1073,7 +1102,7 @@ int inet_sk_rebuild_header(struct sock *sk) }, }, }; - + security_sk_classify_flow(sk, &fl); err = ip_route_output_flow(&rt, &fl, sk, 0); } @@ -1109,7 +1138,7 @@ static int inet_gso_send_check(struct sk_buff *skb) if (unlikely(!pskb_may_pull(skb, sizeof(*iph)))) goto out; - iph = skb->nh.iph; + iph = ip_hdr(skb); ihl = iph->ihl * 4; if (ihl < sizeof(*iph)) goto out; @@ -1117,8 +1146,9 @@ static int inet_gso_send_check(struct sk_buff *skb) if (unlikely(!pskb_may_pull(skb, ihl))) goto out; - skb->h.raw = __skb_pull(skb, ihl); - iph = skb->nh.iph; + __skb_pull(skb, ihl); + skb_reset_transport_header(skb); + iph = ip_hdr(skb); proto = iph->protocol & (MAX_INET_PROTOS - 1); err = -EPROTONOSUPPORT; @@ -1152,7 +1182,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features) if (unlikely(!pskb_may_pull(skb, sizeof(*iph)))) goto out; - iph = skb->nh.iph; + iph = ip_hdr(skb); ihl = iph->ihl * 4; if (ihl < sizeof(*iph)) goto out; @@ -1160,8 +1190,9 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features) if (unlikely(!pskb_may_pull(skb, ihl))) goto out; - skb->h.raw = __skb_pull(skb, ihl); - iph = skb->nh.iph; + __skb_pull(skb, ihl); + skb_reset_transport_header(skb); + iph = ip_hdr(skb); id = ntohs(iph->id); proto = iph->protocol & (MAX_INET_PROTOS - 1); segs = ERR_PTR(-EPROTONOSUPPORT); @@ -1177,11 +1208,11 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features) skb = segs; do { - iph = skb->nh.iph; + iph = ip_hdr(skb); iph->id = htons(id++); iph->tot_len = htons(skb->len - skb->mac_len); iph->check = 0; - iph->check = ip_fast_csum(skb->nh.raw, iph->ihl); + iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl); } while ((skb = skb->next)); out: @@ -1273,10 +1304,10 @@ static int __init inet_init(void) goto out_unregister_udp_proto; /* - * Tell SOCKET that we are alive... + * Tell SOCKET that we are alive... */ - (void)sock_register(&inet_family_ops); + (void)sock_register(&inet_family_ops); /* * Add all the base protocols. @@ -1306,9 +1337,9 @@ static int __init inet_init(void) arp_init(); - /* - * Set the IP module up - */ + /* + * Set the IP module up + */ ip_init(); @@ -1334,11 +1365,11 @@ static int __init inet_init(void) #endif /* * Initialise per-cpu ipv4 mibs - */ + */ - if(init_ipv4_mibs()) + if (init_ipv4_mibs()) printk(KERN_CRIT "inet_init: Cannot init ipv4 mibs\n"); ; - + ipv4_proc_init(); ipfrag_init();