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iwd
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netconfig: Add IPv4 domain name helper and installer 

The provided domain name helper allows to override the DHCP lease
option value with the static one from network configuration file.
This commit is contained in:
Tim Kourt 2019-12-10 16:34:53 -08:00 committed by Denis Kenzior
parent 098820a40c
commit fb338154a2
1 changed files with 33 additions and 1 deletions
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34
src/netconfig.c
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@ -278,6 +278,28 @@ static char **netconfig_ipv4_get_dns(struct netconfig *netconfig, uint8_t proto)
return NULL;
}
static char *netconfig_ipv4_get_domain_name(struct netconfig *netconfig,
uint8_t proto)
{
const struct l_dhcp_lease *lease;
char *domain_name;
domain_name = l_settings_get_string(netconfig->active_settings,
"IPv4", "DomainName");
if (domain_name)
/* Allow to override the DHCP domain name with setting entry. */
return domain_name;
if (proto != RTPROT_DHCP)
return NULL;
lease = l_dhcp_client_get_lease(netconfig->dhcp_client);
if (!lease)
return NULL;
return l_dhcp_lease_get_domain_name(lease);
}
static struct netconfig_ifaddr *netconfig_ipv6_get_ifaddr(
struct netconfig *netconfig,
uint8_t proto)
@ -727,6 +749,7 @@ static void netconfig_ipv4_ifaddr_add_cmd_cb(int error, uint16_t type,
struct netconfig *netconfig = user_data;
struct netconfig_ifaddr *ifaddr;
char **dns;
char *domain_name;
if (error && error != -EEXIST) {
l_error("netconfig: Failed to add IP address. "
@ -751,12 +774,21 @@ static void netconfig_ipv4_ifaddr_add_cmd_cb(int error, uint16_t type,
dns = netconfig_ipv4_get_dns(netconfig, netconfig->rtm_protocol);
if (!dns) {
l_error("netconfig: Failed to obtain DNS addresses.");
goto done;
goto domain_name;
}
resolve_add_dns(netconfig->ifindex, ifaddr->family, dns);
l_strv_free(dns);
domain_name:
domain_name = netconfig_ipv4_get_domain_name(netconfig,
netconfig->rtm_protocol);
if (!domain_name)
goto done;
resolve_add_domain_name(netconfig->ifindex, domain_name);
l_free(domain_name);
done:
netconfig_ifaddr_destroy(ifaddr);
}