diff options
| -rw-r--r-- | src/libcharon/plugins/socket_default/socket_default_socket.c | 12 | ||||
| -rw-r--r-- | src/libstrongswan/utils/capabilities.h | 5 |
2 files changed, 16 insertions, 1 deletions
diff --git a/src/libcharon/plugins/socket_default/socket_default_socket.c b/src/libcharon/plugins/socket_default/socket_default_socket.c index aa3d795fc..494bf57b1 100644 --- a/src/libcharon/plugins/socket_default/socket_default_socket.c +++ b/src/libcharon/plugins/socket_default/socket_default_socket.c @@ -692,6 +692,18 @@ socket_default_socket_t *socket_default_socket_create() this->natt = 0; } + if ((this->port && this->port < 1024) || (this->natt && this->natt < 1024)) + { + if (!lib->caps->keep(lib->caps, CAP_NET_BIND_SERVICE)) + { + /* required to bind ports < 1024 */ + DBG1(DBG_NET, "socket-default plugin requires CAP_NET_BIND_SERVICE " + "capability"); + destroy(this); + return NULL; + } + } + /* we allocate IPv6 sockets first as that will reserve randomly allocated * ports also for IPv4. On OS X, we have to do it the other way round * for the same effect. */ diff --git a/src/libstrongswan/utils/capabilities.h b/src/libstrongswan/utils/capabilities.h index ebcca46db..543af32cc 100644 --- a/src/libstrongswan/utils/capabilities.h +++ b/src/libstrongswan/utils/capabilities.h @@ -32,8 +32,11 @@ typedef struct capabilities_t capabilities_t; # include <linux/capability.h> #endif +#ifndef CAP_NET_BIND_SERVICE +# define CAP_NET_BIND_SERVICE 10 +#endif #ifndef CAP_NET_ADMIN -#define CAP_NET_ADMIN 12 +# define CAP_NET_ADMIN 12 #endif /** |