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network: route: read RTA_TABLE attribute to get route table

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If the table of a route is larger than 255, then the value is stored in
RTA_TABLE attribute. But the attribute is not supported by old kernels.
So, first try to read the value from RTA_TABLE attribute, then fallback
to the value in the message header.
This commit is contained in:
Yu Watanabe
2021-12-01 03:53:09 +09:00
parent af31670340
commit 5e82a61375
1 changed files with 6 additions and 2 deletions
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src/network/networkd-route.c
+6 -2
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@@ -1723,12 +1723,16 @@ int manager_rtnl_process_route(sd_netlink *rtnl, sd_netlink_message *message, Ma
return 0;
}
r = sd_rtnl_message_route_get_table(message, &table);
r = sd_netlink_message_read_u32(message, RTA_TABLE, &tmp->table);
if (r == -ENODATA) {
r = sd_rtnl_message_route_get_table(message, &table);
if (r >= 0)
tmp->table = table;
}
if (r < 0) {
log_link_warning_errno(link, r, "rtnl: received route message with invalid table, ignoring: %m");
return 0;
}
tmp->table = table;
r = sd_netlink_message_read_u32(message, RTA_PRIORITY, &tmp->priority);
if (r < 0 && r != -ENODATA) {