diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/inet_connection_sock.c | 2 | ||||
| -rw-r--r-- | net/ipv4/inet_hashtables.c | 2 | ||||
| -rw-r--r-- | net/ipv4/sysctl_net_ipv4.c | 4 | ||||
| -rw-r--r-- | net/ipv4/udp.c | 5 |
4 files changed, 7 insertions, 6 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 3cef12835c4..8fb6ca23700 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -93,7 +93,7 @@ int inet_csk_get_port(struct inet_hashinfo *hashinfo, int remaining, rover, low, high; inet_get_local_port_range(&low, &high); - remaining = high - low; + remaining = (high - low) + 1; rover = net_random() % remaining + low; do { diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index fac6398e436..16eecc7046a 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -286,7 +286,7 @@ int inet_hash_connect(struct inet_timewait_death_row *death_row, struct inet_timewait_sock *tw = NULL; inet_get_local_port_range(&low, &high); - remaining = high - low; + remaining = (high - low) + 1; local_bh_disable(); for (i = 1; i <= remaining; i++) { diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index c78acc1a7f1..ffddd2b4535 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -122,7 +122,7 @@ static int ipv4_local_port_range(ctl_table *table, int write, struct file *filp, ret = proc_dointvec_minmax(&tmp, write, filp, buffer, lenp, ppos); if (write && ret == 0) { - if (range[1] <= range[0]) + if (range[1] < range[0]) ret = -EINVAL; else set_local_port_range(range); @@ -150,7 +150,7 @@ static int ipv4_sysctl_local_port_range(ctl_table *table, int __user *name, ret = sysctl_intvec(&tmp, name, nlen, oldval, oldlenp, newval, newlen); if (ret == 0 && newval && newlen) { - if (range[1] <= range[0]) + if (range[1] < range[0]) ret = -EINVAL; else set_local_port_range(range); diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index cb9fc58efb2..35d2b0e9e10 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -147,13 +147,14 @@ int __udp_lib_get_port(struct sock *sk, unsigned short snum, write_lock_bh(&udp_hash_lock); if (!snum) { - int i, low, high; + int i, low, high, remaining; unsigned rover, best, best_size_so_far; inet_get_local_port_range(&low, &high); + remaining = (high - low) + 1; best_size_so_far = UINT_MAX; - best = rover = net_random() % (high - low) + low; + best = rover = net_random() % remaining + low; /* 1st pass: look for empty (or shortest) hash chain */ for (i = 0; i < UDP_HTABLE_SIZE; i++) { |