From 0bbf87d852d243680ed7074110ccc1dea003b61a Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sat, 28 Sep 2013 14:10:59 -0700 Subject: net ipv4: Convert ipv4.ip_local_port_range to be per netns v3 - Move sysctl_local_ports from a global variable into struct netns_ipv4. - Modify inet_get_local_port_range to take a struct net, and update all of the callers. - Move the initialization of sysctl_local_ports into sysctl_net_ipv4.c:ipv4_sysctl_init_net from inet_connection_sock.c v2: - Ensure indentation used tabs - Fixed ip.h so it applies cleanly to todays net-next v3: - Compile fixes of strange callers of inet_get_local_port_range. This patch now successfully passes an allmodconfig build. Removed manual inlining of inet_get_local_port_range in ipv4_local_port_range Originally-by: Samya Acked-by: Nicolas Dichtel Signed-off-by: "Eric W. Biederman" Signed-off-by: David S. Miller --- net/ipv4/inet_connection_sock.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) (limited to 'net/ipv4/inet_connection_sock.c') diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 6acb541c9091..7ac7aa11130e 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -29,27 +29,19 @@ const char inet_csk_timer_bug_msg[] = "inet_csk BUG: unknown timer value\n"; EXPORT_SYMBOL(inet_csk_timer_bug_msg); #endif -/* - * This struct holds the first and last local port number. - */ -struct local_ports sysctl_local_ports __read_mostly = { - .lock = __SEQLOCK_UNLOCKED(sysctl_local_ports.lock), - .range = { 32768, 61000 }, -}; - unsigned long *sysctl_local_reserved_ports; EXPORT_SYMBOL(sysctl_local_reserved_ports); -void inet_get_local_port_range(int *low, int *high) +void inet_get_local_port_range(struct net *net, int *low, int *high) { unsigned int seq; do { - seq = read_seqbegin(&sysctl_local_ports.lock); + seq = read_seqbegin(&net->ipv4.sysctl_local_ports.lock); - *low = sysctl_local_ports.range[0]; - *high = sysctl_local_ports.range[1]; - } while (read_seqretry(&sysctl_local_ports.lock, seq)); + *low = net->ipv4.sysctl_local_ports.range[0]; + *high = net->ipv4.sysctl_local_ports.range[1]; + } while (read_seqretry(&net->ipv4.sysctl_local_ports.lock, seq)); } EXPORT_SYMBOL(inet_get_local_port_range); @@ -116,7 +108,7 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum) int remaining, rover, low, high; again: - inet_get_local_port_range(&low, &high); + inet_get_local_port_range(net, &low, &high); remaining = (high - low) + 1; smallest_rover = rover = net_random() % remaining + low; -- cgit v1.2.3