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netconfig: Split ipv4 route setters

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Split this function into two, one for setting the gateway route and one
for setting the subnet route.
This commit is contained in:
Andrew Zaborowski 2021-11-08 12:28:30 +01:00 committed by Denis Kenzior
parent 76c41775fb
commit 5e7949c144
1 changed files with 26 additions and 19 deletions
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39
src/netconfig.c
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@ -813,10 +813,8 @@ static void netconfig_route6_add_cb(int error, uint16_t type,
}
}
static bool netconfig_ipv4_routes_install(struct netconfig *netconfig)
static bool netconfig_ipv4_subnet_route_install(struct netconfig *netconfig)
{
L_AUTO_FREE_VAR(char *, gateway) = NULL;
const uint8_t *gateway_mac = NULL;
struct in_addr in_addr;
char ip[INET_ADDRSTRLEN];
char network[INET_ADDRSTRLEN];
@ -839,10 +837,19 @@ static bool netconfig_ipv4_routes_install(struct netconfig *netconfig)
netconfig_route_generic_cb,
netconfig, NULL)) {
l_error("netconfig: Failed to add subnet route.");
return false;
}
return true;
}
static bool netconfig_ipv4_gateway_route_install(struct netconfig *netconfig)
{
L_AUTO_FREE_VAR(char *, gateway) = NULL;
const uint8_t *gateway_mac = NULL;
struct in_addr in_addr;
char ip[INET_ADDRSTRLEN];
gateway = netconfig_ipv4_get_gateway(netconfig, &gateway_mac);
if (!gateway) {
l_debug("No gateway obtained from %s.",
@ -858,6 +865,10 @@ static bool netconfig_ipv4_routes_install(struct netconfig *netconfig)
return true;
}
if (!l_rtnl_address_get_address(netconfig->v4_address, ip) ||
inet_pton(AF_INET, ip, &in_addr) < 1)
return false;
netconfig->route4_add_gateway_cmd_id =
l_rtnl_route4_add_gateway(rtnl, netconfig->ifindex, gateway, ip,
ROUTE_PRIORITY_OFFSET,
@ -871,23 +882,20 @@ static bool netconfig_ipv4_routes_install(struct netconfig *netconfig)
return false;
}
if (gateway_mac) {
/*
* Attempt to use the gateway MAC address received from the AP
* by writing the mapping directly into the netdev's ARP table
* so as to save one data frame roundtrip before first IP
* connections are established. This is very low-priority but
* print error messages just because they may indicate bigger
* problems.
* Attempt to use the gateway MAC address received from the AP by
* writing the mapping directly into the netdev's ARP table so as
* to save one data frame roundtrip before first IP connections
* are established. This is very low-priority but print error
* messages just because they may indicate bigger problems.
*/
if (!l_rtnl_neighbor_set_hwaddr(rtnl, netconfig->ifindex,
if (gateway_mac && !l_rtnl_neighbor_set_hwaddr(rtnl, netconfig->ifindex,
AF_INET,
&netconfig->fils_override->ipv4_gateway,
gateway_mac, 6,
netconfig_set_neighbor_entry_cb, NULL,
NULL))
l_debug("l_rtnl_neighbor_set_hwaddr failed");
}
return true;
}
@ -908,10 +916,9 @@ static void netconfig_ipv4_ifaddr_add_cmd_cb(int error, uint16_t type,
netconfig_gateway_to_arp(netconfig);
if (!netconfig_ipv4_routes_install(netconfig)) {
l_error("netconfig: Failed to install IPv4 routes.");
if (!netconfig_ipv4_subnet_route_install(netconfig) ||
!netconfig_ipv4_gateway_route_install(netconfig))
return;
}
netconfig_set_dns(netconfig);
netconfig_set_domains(netconfig);