diff options
| -rw-r--r-- | net/sysctl_net.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/sysctl_net.c b/net/sysctl_net.c index 007c1a6708ee..63ada437fc2f 100644 --- a/net/sysctl_net.c +++ b/net/sysctl_net.c @@ -35,8 +35,22 @@ net_ctl_header_lookup(struct ctl_table_root *root, struct nsproxy *namespaces) return &namespaces->net_ns->sysctl_table_headers; } +/* Return standard mode bits for table entry. */ +static int net_ctl_permissions(struct ctl_table_root *root, + struct nsproxy *nsproxy, + struct ctl_table *table) +{ + /* Allow network administrator to have same access as root. */ + if (capable(CAP_NET_ADMIN)) { + int mode = (table->mode >> 6) & 7; + return (mode << 6) | (mode << 3) | mode; + } + return table->mode; +} + static struct ctl_table_root net_sysctl_root = { .lookup = net_ctl_header_lookup, + .permissions = net_ctl_permissions, }; static LIST_HEAD(net_sysctl_ro_tables); |