From 7bd8e95d44977833d0de3fc4e893eb3bc84351d6 Mon Sep 17 00:00:00 2001 From: Patrik Flykt Date: Thu, 2 Apr 2015 10:50:16 +0300 Subject: sd-dhcp6: Add support for DHCPv6 DNS Recursive Name Server option Support DHCPv6 DNS server option as specified in RFC 3646. This option contains a list of IPv6 DNS server addresses. --- src/libsystemd-network/sd-dhcp6-lease.c | 37 +++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) (limited to 'src/libsystemd-network/sd-dhcp6-lease.c') diff --git a/src/libsystemd-network/sd-dhcp6-lease.c b/src/libsystemd-network/sd-dhcp6-lease.c index 2442269a3f..55cefdeec9 100644 --- a/src/libsystemd-network/sd-dhcp6-lease.c +++ b/src/libsystemd-network/sd-dhcp6-lease.c @@ -173,6 +173,42 @@ void sd_dhcp6_lease_reset_address_iter(sd_dhcp6_lease *lease) { lease->addr_iter = lease->ia.addresses; } +int dhcp6_lease_set_dns(sd_dhcp6_lease *lease, uint8_t *optval, size_t optlen) { + int r; + + assert_return(lease, -EINVAL); + assert_return(optval, -EINVAL); + + if (!optlen) + return 0; + + r = dhcp6_option_parse_ip6addrs(optval, optlen, &lease->dns, + lease->dns_count, + &lease->dns_allocated); + if (r < 0) { + log_dhcp6_client(client, "Invalid DNS server option: %s", + strerror(-r)); + + return r; + } + + lease->dns_count = r; + + return 0; +} + +int sd_dhcp6_lease_get_dns(sd_dhcp6_lease *lease, struct in6_addr **addrs) { + assert_return(lease, -EINVAL); + assert_return(addrs, -EINVAL); + + if (lease->dns_count) { + *addrs = lease->dns; + return lease->dns_count; + } + + return -ENOENT; +} + sd_dhcp6_lease *sd_dhcp6_lease_ref(sd_dhcp6_lease *lease) { if (lease) assert_se(REFCNT_INC(lease->n_ref) >= 2); @@ -185,6 +221,7 @@ sd_dhcp6_lease *sd_dhcp6_lease_unref(sd_dhcp6_lease *lease) { free(lease->serverid); dhcp6_lease_free_ia(&lease->ia); + free(lease->dns); free(lease); } -- cgit v1.2.3-54-g00ecf