From cd05acfe65ed2cf2db683fa9a6adb8d35635263b Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Sun, 16 Dec 2007 15:59:24 -0800 Subject: [CAN]: Allocate protocol numbers for PF_CAN This patch adds a protocol/address family number, ARP hardware type, ethernet packet type, and a line discipline number for the SocketCAN implementation. Signed-off-by: Oliver Hartkopp Signed-off-by: Urs Thuermann Signed-off-by: David S. Miller --- include/linux/socket.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/socket.h') diff --git a/include/linux/socket.h b/include/linux/socket.h index c22ef1c1afb8..eb5bdd59a644 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -185,6 +185,7 @@ struct ucred { #define AF_PPPOX 24 /* PPPoX sockets */ #define AF_WANPIPE 25 /* Wanpipe API Sockets */ #define AF_LLC 26 /* Linux LLC */ +#define AF_CAN 29 /* Controller Area Network */ #define AF_TIPC 30 /* TIPC sockets */ #define AF_BLUETOOTH 31 /* Bluetooth sockets */ #define AF_IUCV 32 /* IUCV sockets */ @@ -220,6 +221,7 @@ struct ucred { #define PF_PPPOX AF_PPPOX #define PF_WANPIPE AF_WANPIPE #define PF_LLC AF_LLC +#define PF_CAN AF_CAN #define PF_TIPC AF_TIPC #define PF_BLUETOOTH AF_BLUETOOTH #define PF_IUCV AF_IUCV -- cgit v1.2.3 From b8e1f9b5c37e77cc8f978a58859b35fe5edd5542 Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Sat, 8 Dec 2007 00:12:33 -0800 Subject: [NET] sysctl: make sysctl_somaxconn per-namespace Just move the variable on the struct net and adjust its usage. Others sysctls from sys.net.core table are more difficult to virtualize (i.e. make them per-namespace), but I'll look at them as well a bit later. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller --- include/linux/socket.h | 1 - include/net/net_namespace.h | 1 + net/core/sysctl_net_core.c | 4 +++- net/socket.c | 8 ++++---- 4 files changed, 8 insertions(+), 6 deletions(-) (limited to 'include/linux/socket.h') diff --git a/include/linux/socket.h b/include/linux/socket.h index eb5bdd59a644..bd2b30a74e76 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -24,7 +24,6 @@ struct __kernel_sockaddr_storage { #include /* pid_t */ #include /* __user */ -extern int sysctl_somaxconn; #ifdef CONFIG_PROC_FS struct seq_file; extern void socket_seq_show(struct seq_file *seq); diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index d5936115d972..b62e31fca474 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -39,6 +39,7 @@ struct net { /* core sysctls */ struct ctl_table_header *sysctl_core_hdr; + int sysctl_somaxconn; /* List of all packet sockets. */ rwlock_t packet_sklist_lock; diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index dc4cf7dda9d1..130338f83ae5 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -127,7 +127,7 @@ static struct ctl_table net_core_table[] = { { .ctl_name = NET_CORE_SOMAXCONN, .procname = "somaxconn", - .data = &sysctl_somaxconn, + .data = &init_net.sysctl_somaxconn, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec @@ -161,6 +161,8 @@ static __net_init int sysctl_core_net_init(struct net *net) { struct ctl_table *tbl, *tmp; + net->sysctl_somaxconn = SOMAXCONN; + tbl = net_core_table; if (net != &init_net) { tbl = kmemdup(tbl, sizeof(net_core_table), GFP_KERNEL); diff --git a/net/socket.c b/net/socket.c index 9ebca5c695d6..7651de008502 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1365,17 +1365,17 @@ asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen) * ready for listening. */ -int sysctl_somaxconn __read_mostly = SOMAXCONN; - asmlinkage long sys_listen(int fd, int backlog) { struct socket *sock; int err, fput_needed; + int somaxconn; sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock) { - if ((unsigned)backlog > sysctl_somaxconn) - backlog = sysctl_somaxconn; + somaxconn = sock->sk->sk_net->sysctl_somaxconn; + if ((unsigned)backlog > somaxconn) + backlog = somaxconn; err = security_socket_listen(sock, backlog); if (!err) -- cgit v1.2.3