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networkctl: use the shared functions for enumerating the local gateways

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This commit is contained in:
Tom Gundersen 2014-12-04 12:19:27 +01:00
parent e1853b00ef
commit b6a3ca6d87
1 changed files with 15 additions and 99 deletions
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114
src/network/networkctl.c
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@ -375,118 +375,34 @@ static int get_gateway_description(sd_rtnl *rtnl, struct udev_hwdb *hwdb, int if
}
static int dump_gateways(sd_rtnl *rtnl, struct udev_hwdb *hwdb, const char *prefix, int ifindex) {
_cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
sd_rtnl_message *m;
bool first = true;
int r;
_cleanup_free_ struct local_address *local = NULL;
int r, n, i;
assert(rtnl);
assert(ifindex >= 0);
n = local_gateways(rtnl, ifindex, AF_UNSPEC, &local);
if (n < 0)
return n;
r = sd_rtnl_message_new_route(rtnl, &req, RTM_GETROUTE, AF_UNSPEC, RTPROT_UNSPEC);
if (r < 0)
return r;
for (i = 0; i < n; i++) {
_cleanup_free_ char *gateway = NULL, *description = NULL;
r = sd_rtnl_message_request_dump(req, true);
if (r < 0)
return r;
r = sd_rtnl_call(rtnl, req, 0, &reply);
if (r < 0)
return r;
for (m = reply; m; m = sd_rtnl_message_next(m)) {
_cleanup_free_ char *gateway = NULL, *gateway_description = NULL;
union in_addr_union gw = {};
uint16_t type;
uint32_t ifi;
int family;
r = sd_rtnl_message_get_errno(m);
if (r < 0) {
log_error_errno(r, "got error: %m");
continue;
}
r = sd_rtnl_message_get_type(m, &type);
if (r < 0) {
log_error_errno(r, "could not get type: %m");
continue;
}
if (type != RTM_NEWROUTE) {
log_error("type is not RTM_NEWROUTE");
continue;
}
r = sd_rtnl_message_route_get_family(m, &family);
if (r < 0) {
log_error_errno(r, "could not get family: %m");
continue;
}
r = sd_rtnl_message_read_u32(m, RTA_OIF, &ifi);
if (r < 0) {
log_error_errno(r, "could not get RTA_OIF: %m");
continue;
}
if (ifindex > 0 && ifi != (unsigned) ifindex)
continue;
switch (family) {
case AF_INET:
r = sd_rtnl_message_read_in_addr(m, RTA_GATEWAY, &gw.in);
if (r < 0)
continue;
r = sd_rtnl_message_read_in_addr(m, RTA_DST, NULL);
if (r >= 0)
continue;
r = sd_rtnl_message_read_in_addr(m, RTA_SRC, NULL);
if (r >= 0)
continue;
break;
case AF_INET6:
r = sd_rtnl_message_read_in6_addr(m, RTA_GATEWAY, &gw.in6);
if (r < 0)
continue;
r = sd_rtnl_message_read_in6_addr(m, RTA_DST, NULL);
if (r >= 0)
continue;
r = sd_rtnl_message_read_in6_addr(m, RTA_SRC, NULL);
if (r >= 0)
continue;
break;
default:
continue;
}
r = in_addr_to_string(family, &gw, &gateway);
r = in_addr_to_string(local[i].family, &local[i].address, &gateway);
if (r < 0)
continue;
return r;
r = get_gateway_description(rtnl, hwdb, ifi, family, &gw, &gateway_description);
r = get_gateway_description(rtnl, hwdb, ifindex, local[i].family, &local[i].address, &description);
if (r < 0)
log_debug("could not get description of gateway: %s", strerror(-r));
log_debug_errno(r, "Could not get description of gateway: %m");
if (gateway_description)
if (description)
printf("%*s%s (%s)\n",
(int) strlen(prefix),
first ? prefix : "",
gateway, gateway_description);
i == 0 ? prefix : "",
gateway, description);
else
printf("%*s%s\n",
(int) strlen(prefix),
first ? prefix : "",
i == 0 ? prefix : "",
gateway);
first = false;
}
return 0;