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network: warn if dynamic gateway is specified but corresponding protocol is disabled

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This commit is contained in:
Yu Watanabe 2020-10-12 17:04:04 +09:00
parent 22d37e5df6
commit 956dbf361b
1 changed files with 14 additions and 1 deletions
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15
src/network/networkd-route.c
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@ -2382,7 +2382,7 @@ static int route_section_verify(Route *route, Network *network) {
if (section_is_invalid(route->section))
return -EINVAL;
if (route->gateway_from_dhcp_or_ra)
if (route->gateway_from_dhcp_or_ra) {
if (route->gw_family == AF_UNSPEC) {
/* When deprecated Gateway=_dhcp is set, then assume gateway family based on other settings. */
switch (route->family) {
@ -2406,6 +2406,19 @@ static int route_section_verify(Route *route, Network *network) {
route->gw_family = route->family;
}
if (route->gw_family == AF_INET && !FLAGS_SET(network->dhcp, ADDRESS_FAMILY_IPV4))
return log_warning_errno(SYNTHETIC_ERRNO(EINVAL),
"%s: Gateway=\"_dhcp4\" is specified but DHCPv4 client is disabled. "
"Ignoring [Route] section from line %u.",
route->section->filename, route->section->line);
if (route->gw_family == AF_INET6 && !network->ipv6_accept_ra)
return log_warning_errno(SYNTHETIC_ERRNO(EINVAL),
"%s: Gateway=\"_ipv6ra\" is specified but IPv6AcceptRA= is disabled. "
"Ignoring [Route] section from line %u.",
route->section->filename, route->section->line);
}
/* When only Gateway= is specified, assume the route family based on the Gateway address. */
if (route->family == AF_UNSPEC)
route->family = route->gw_family;