diff options
Diffstat (limited to 'target/linux/goldfish/patches-2.6.30/0081-net-socket-ioctl-to-reset-connections-matching-loca.patch')
| -rw-r--r-- | target/linux/goldfish/patches-2.6.30/0081-net-socket-ioctl-to-reset-connections-matching-loca.patch | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/target/linux/goldfish/patches-2.6.30/0081-net-socket-ioctl-to-reset-connections-matching-loca.patch b/target/linux/goldfish/patches-2.6.30/0081-net-socket-ioctl-to-reset-connections-matching-loca.patch deleted file mode 100644 index fdffc507a0..0000000000 --- a/target/linux/goldfish/patches-2.6.30/0081-net-socket-ioctl-to-reset-connections-matching-loca.patch +++ /dev/null @@ -1,132 +0,0 @@ -From 2df5996350da51bcdee798c00ae1f2415fd9ad20 Mon Sep 17 00:00:00 2001 -From: Robert Love <rlove@google.com> -Date: Mon, 12 May 2008 17:08:29 -0400 -Subject: [PATCH 081/134] net: socket ioctl to reset connections matching local address - -Introduce a new socket ioctl, SIOCKILLADDR, that nukes all sockets -bound to the same local address. This is useful in situations with -dynamic IPs, to kill stuck connections. - -Signed-off-by: Brian Swetland <swetland@google.com> - -net: fix tcp_v4_nuke_addr - -Signed-off-by: Dima Zavin <dima@android.com> ---- - include/linux/sockios.h | 1 + - include/net/tcp.h | 2 ++ - net/ipv4/af_inet.c | 1 + - net/ipv4/devinet.c | 9 ++++++++- - net/ipv4/tcp_ipv4.c | 31 +++++++++++++++++++++++++++++++ - 5 files changed, 43 insertions(+), 1 deletions(-) - ---- a/include/linux/sockios.h -+++ b/include/linux/sockios.h -@@ -65,6 +65,7 @@ - #define SIOCDIFADDR 0x8936 /* delete PA address */ - #define SIOCSIFHWBROADCAST 0x8937 /* set hardware broadcast addr */ - #define SIOCGIFCOUNT 0x8938 /* get number of devices */ -+#define SIOCKILLADDR 0x8939 /* kill sockets with this local addr */ - - #define SIOCGIFBR 0x8940 /* Bridging support */ - #define SIOCSIFBR 0x8941 /* Set bridging options */ ---- a/include/net/tcp.h -+++ b/include/net/tcp.h -@@ -1381,6 +1381,8 @@ extern struct sk_buff **tcp4_gro_receive - extern int tcp_gro_complete(struct sk_buff *skb); - extern int tcp4_gro_complete(struct sk_buff *skb); - -+extern void tcp_v4_nuke_addr(__u32 saddr); -+ - #ifdef CONFIG_PROC_FS - extern int tcp4_proc_init(void); - extern void tcp4_proc_exit(void); ---- a/net/ipv4/af_inet.c -+++ b/net/ipv4/af_inet.c -@@ -825,6 +825,7 @@ int inet_ioctl(struct socket *sock, unsi - case SIOCSIFPFLAGS: - case SIOCGIFPFLAGS: - case SIOCSIFFLAGS: -+ case SIOCKILLADDR: - err = devinet_ioctl(net, cmd, (void __user *)arg); - break; - default: ---- a/net/ipv4/devinet.c -+++ b/net/ipv4/devinet.c -@@ -57,6 +57,7 @@ - - #include <net/arp.h> - #include <net/ip.h> -+#include <net/tcp.h> - #include <net/route.h> - #include <net/ip_fib.h> - #include <net/rtnetlink.h> -@@ -631,6 +632,7 @@ int devinet_ioctl(struct net *net, unsig - case SIOCSIFBRDADDR: /* Set the broadcast address */ - case SIOCSIFDSTADDR: /* Set the destination address */ - case SIOCSIFNETMASK: /* Set the netmask for the interface */ -+ case SIOCKILLADDR: /* Nuke all sockets on this address */ - ret = -EACCES; - if (!capable(CAP_NET_ADMIN)) - goto out; -@@ -680,7 +682,8 @@ int devinet_ioctl(struct net *net, unsig - } - - ret = -EADDRNOTAVAIL; -- if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS) -+ if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS -+ && cmd != SIOCKILLADDR) - goto done; - - switch (cmd) { -@@ -804,6 +807,10 @@ int devinet_ioctl(struct net *net, unsig - inet_insert_ifa(ifa); - } - break; -+ case SIOCKILLADDR: /* Nuke all connections on this address */ -+ ret = 0; -+ tcp_v4_nuke_addr(sin->sin_addr.s_addr); -+ break; - } - done: - rtnl_unlock(); ---- a/net/ipv4/tcp_ipv4.c -+++ b/net/ipv4/tcp_ipv4.c -@@ -1845,6 +1845,37 @@ void tcp_v4_destroy_sock(struct sock *sk - - EXPORT_SYMBOL(tcp_v4_destroy_sock); - -+/* -+ * tcp_v4_nuke_addr - destroy all sockets on the given local address -+ */ -+void tcp_v4_nuke_addr(__u32 saddr) -+{ -+ unsigned int bucket; -+ -+ for (bucket = 0; bucket < tcp_hashinfo.ehash_size; bucket++) { -+ struct hlist_nulls_node *node; -+ struct sock *sk; -+ spinlock_t *lock = inet_ehash_lockp(&tcp_hashinfo, bucket); -+ -+ spin_lock_bh(lock); -+ sk_nulls_for_each(sk, node, &tcp_hashinfo.ehash[bucket].chain) { -+ struct inet_sock *inet = inet_sk(sk); -+ -+ if (inet->rcv_saddr != saddr) -+ continue; -+ if (sysctl_ip_dynaddr && sk->sk_state == TCP_SYN_SENT) -+ continue; -+ if (sock_flag(sk, SOCK_DEAD)) -+ continue; -+ -+ sk->sk_err = ETIMEDOUT; -+ sk->sk_error_report(sk); -+ tcp_done(sk); -+ } -+ spin_unlock_bh(lock); -+ } -+} -+ - #ifdef CONFIG_PROC_FS - /* Proc filesystem TCP sock list dumping. */ - |