@@ -24,6 +24,8 @@
#include "sys.h"
#include "functions.h"
+#define IFACE_STATUS_LEN 256
+
static void interface_usage(void)
{
fprintf(stderr, "Usage: batctl [options] interface [parameters] [add|del iface(s)]\n");
@@ -33,6 +35,92 @@ static void interface_usage(void)
fprintf(stderr, " \t -h print this help\n");
}
+static int get_iface_status_netlink_parse(struct nl_msg *msg, void *arg)
+{
+
+ struct nlattr *attrs[NUM_BATADV_ATTR];
+ struct nlmsghdr *nlh = nlmsg_hdr(msg);
+ char *iface_status = arg;
+ struct genlmsghdr *ghdr;
+
+ if (!genlmsg_valid_hdr(nlh, 0))
+ return NL_OK;
+
+ ghdr = nlmsg_data(nlh);
+ if (ghdr->cmd != BATADV_CMD_GET_HARDIF)
+ return NL_OK;
+
+ if (nla_parse(attrs, BATADV_ATTR_MAX, genlmsg_attrdata(ghdr, 0),
+ genlmsg_len(ghdr), batadv_netlink_policy))
+ return NL_OK;
+
+ if (attrs[BATADV_ATTR_ACTIVE])
+ strncpy(iface_status, "active\n", IFACE_STATUS_LEN);
+ else
+ strncpy(iface_status, "inactive\n", IFACE_STATUS_LEN);
+
+ iface_status[IFACE_STATUS_LEN - 1] = '\0';
+
+ return NL_STOP;
+}
+
+static char *get_iface_status_netlink(unsigned int meshif, unsigned int hardif,
+ char *iface_status)
+{
+ struct nl_sock *sock;
+ struct nl_msg *msg;
+ int batadv_family;
+ struct nl_cb *cb;
+ int ret;
+
+ strncpy(iface_status, "<error reading status>\n", IFACE_STATUS_LEN);
+ iface_status[IFACE_STATUS_LEN - 1] = '\0';
+
+ sock = nl_socket_alloc();
+ if (!sock)
+ return iface_status;
+
+ ret = genl_connect(sock);
+ if (ret < 0)
+ goto err_free_sock;
+
+ batadv_family = genl_ctrl_resolve(sock, BATADV_NL_NAME);
+ if (ret < 0)
+ goto err_free_sock;
+
+ cb = nl_cb_alloc(NL_CB_DEFAULT);
+ if (!cb)
+ goto err_free_sock;
+
+ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, get_iface_status_netlink_parse,
+ iface_status);
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ goto err_free_cb;
+
+ genlmsg_put(msg, NL_AUTO_PID, NL_AUTO_SEQ, batadv_family,
+ 0, 0, BATADV_CMD_GET_HARDIF, 1);
+
+ nla_put_u32(msg, BATADV_ATTR_MESH_IFINDEX, meshif);
+ nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX, hardif);
+
+ ret = nl_send_auto_complete(sock, msg);
+ if (ret < 0)
+ goto err_free_msg;
+
+ nl_recvmsgs(sock, cb);
+
+err_free_msg:
+ nlmsg_free(msg);
+err_free_cb:
+ nl_cb_put(cb);
+err_free_sock:
+ nl_socket_free(sock);
+
+ return iface_status;
+}
+
static struct nla_policy link_policy[IFLA_MAX + 1] = {
[IFLA_IFNAME] = { .type = NLA_STRING, .maxlen = IFNAMSIZ },
[IFLA_MASTER] = { .type = NLA_U32 },
@@ -45,6 +133,7 @@ struct print_interfaces_rtnl_arg {
static int print_interfaces_rtnl_parse(struct nl_msg *msg, void *arg)
{
struct print_interfaces_rtnl_arg *print_arg = arg;
+ char iface_status[IFACE_STATUS_LEN];
struct nlattr *attrs[IFLA_MAX + 1];
char path_buff[PATH_BUFF_LEN];
struct ifinfomsg *ifm;
@@ -75,7 +164,8 @@ static int print_interfaces_rtnl_parse(struct nl_msg *msg, void *arg)
snprintf(path_buff, sizeof(path_buff), SYS_IFACE_STATUS_FMT, ifname);
ret = read_file("", path_buff, USE_READ_BUFF | SILENCE_ERRORS, 0, 0, 0);
if (ret != EXIT_SUCCESS)
- status = "<error reading status>\n";
+ status = get_iface_status_netlink(master, ifm->ifi_index,
+ iface_status);
else
status = line_ptr;