diff options
Diffstat (limited to 'src/vnet/devices/tap')
| -rw-r--r-- | src/vnet/devices/tap/tap.c | 46 |
1 files changed, 14 insertions, 32 deletions
diff --git a/src/vnet/devices/tap/tap.c b/src/vnet/devices/tap/tap.c index dfd32588383..33d6e3bc84a 100644 --- a/src/vnet/devices/tap/tap.c +++ b/src/vnet/devices/tap/tap.c @@ -27,7 +27,6 @@ #include <linux/sockios.h> #include <sys/eventfd.h> #include <net/if_arp.h> -#include <sched.h> #include <limits.h> #include <linux/netlink.h> @@ -36,6 +35,7 @@ #include <vlib/vlib.h> #include <vlib/physmem.h> #include <vlib/unix/unix.h> +#include <vppinfra/linux/netns.h> #include <vnet/ethernet/ethernet.h> #include <vnet/ip/ip4_packet.h> #include <vnet/ip/ip6_packet.h> @@ -79,24 +79,6 @@ virtio_eth_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, return 0; } -static int -open_netns_fd (char *netns) -{ - u8 *s = 0; - int fd; - - if (strncmp (netns, "pid:", 4) == 0) - s = format (0, "/proc/%u/ns/net%c", atoi (netns + 4), 0); - else if (netns[0] == '/') - s = format (0, "%s%c", netns, 0); - else - s = format (0, "/var/run/netns/%s%c", netns, 0); - - fd = open ((char *) s, O_RDONLY); - vec_free (s); - return fd; -} - #define TAP_MAX_INSTANCE 1024 static void @@ -227,15 +209,15 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args) } if (args->host_namespace) { - old_netns_fd = open ("/proc/self/ns/net", O_RDONLY); - if ((nfd = open_netns_fd ((char *) args->host_namespace)) == -1) + old_netns_fd = clib_netns_open (NULL /* self */); + if ((nfd = clib_netns_open (args->host_namespace)) == -1) { args->rv = VNET_API_ERROR_SYSCALL_ERROR_2; - args->error = clib_error_return_unix (0, "open_netns_fd '%s'", + args->error = clib_error_return_unix (0, "clib_netns_open '%s'", args->host_namespace); goto error; } - if (setns (nfd, CLONE_NEWNET) == -1) + if (clib_setns (nfd) == -1) { args->rv = VNET_API_ERROR_SYSCALL_ERROR_3; args->error = clib_error_return_unix (0, "setns '%s'", @@ -423,11 +405,11 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args) after we change our net namespace */ if (args->host_namespace) { - old_netns_fd = open ("/proc/self/ns/net", O_RDONLY); - if ((nfd = open_netns_fd ((char *) args->host_namespace)) == -1) + old_netns_fd = clib_netns_open (NULL /* self */); + if ((nfd = clib_netns_open (args->host_namespace)) == -1) { args->rv = VNET_API_ERROR_SYSCALL_ERROR_2; - args->error = clib_error_return_unix (0, "open_netns_fd '%s'", + args->error = clib_error_return_unix (0, "clib_netns_open '%s'", args->host_namespace); goto error; } @@ -438,7 +420,7 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args) args->rv = VNET_API_ERROR_NETLINK_ERROR; goto error; } - if (setns (nfd, CLONE_NEWNET) == -1) + if (clib_setns (nfd) == -1) { args->rv = VNET_API_ERROR_SYSCALL_ERROR_3; args->error = clib_error_return_unix (0, "setns '%s'", @@ -567,7 +549,7 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args) /* switch back to old net namespace */ if (args->host_namespace) { - if (setns (old_netns_fd, CLONE_NEWNET) == -1) + if (clib_setns (old_netns_fd) == -1) { args->rv = VNET_API_ERROR_SYSCALL_ERROR_2; args->error = clib_error_return_unix (0, "setns '%s'", @@ -1065,13 +1047,13 @@ tap_set_speed (u32 hw_if_index, u32 speed) if (vif->net_ns) { - old_netns_fd = open ("/proc/self/ns/net", O_RDONLY); - if ((nfd = open_netns_fd ((char *) vif->net_ns)) == -1) + old_netns_fd = clib_netns_open (NULL /* self */); + if ((nfd = clib_netns_open (vif->net_ns)) == -1) { clib_warning ("Cannot open netns"); goto done; } - if (setns (nfd, CLONE_NEWNET) == -1) + if (clib_setns (nfd) == -1) { clib_warning ("Cannot set ns"); goto done; @@ -1109,7 +1091,7 @@ tap_set_speed (u32 hw_if_index, u32 speed) done: if (old_netns_fd != -1) { - if (setns (old_netns_fd, CLONE_NEWNET) == -1) + if (clib_setns (old_netns_fd) == -1) { clib_warning ("Cannot set old ns"); } |