diff options
Diffstat (limited to 'src/libsystemd-network/sd-dhcp6-lease.c')
| -rw-r--r-- | src/libsystemd-network/sd-dhcp6-lease.c | 196 |
1 files changed, 195 insertions, 1 deletions
diff --git a/src/libsystemd-network/sd-dhcp6-lease.c b/src/libsystemd-network/sd-dhcp6-lease.c index 2442269a3f..f0494b3c91 100644 --- a/src/libsystemd-network/sd-dhcp6-lease.c +++ b/src/libsystemd-network/sd-dhcp6-lease.c @@ -1,8 +1,10 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + /*** This file is part of systemd. Copyright (C) 2014 Tom Gundersen - Copyright (C) 2014 Intel Corporation. All rights reserved. + Copyright (C) 2014-2015 Intel Corporation. All rights reserved. systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -20,9 +22,11 @@ #include <errno.h> +#include "strv.h" #include "util.h" #include "dhcp6-lease-internal.h" +#include "dhcp6-protocol.h" int dhcp6_lease_clear_timers(DHCP6IA *ia) { assert_return(ia, -EINVAL); @@ -173,6 +177,189 @@ 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; +} + +int dhcp6_lease_set_domains(sd_dhcp6_lease *lease, uint8_t *optval, + size_t optlen) { + int r; + char **domains; + + assert_return(lease, -EINVAL); + assert_return(optval, -EINVAL); + + if (!optlen) + return 0; + + r = dhcp6_option_parse_domainname(optval, optlen, &domains); + if (r < 0) + return 0; + + free(lease->domains); + lease->domains = domains; + lease->domains_count = r; + + return r; +} + +int sd_dhcp6_lease_get_domains(sd_dhcp6_lease *lease, char ***domains) { + assert_return(lease, -EINVAL); + assert_return(domains, -EINVAL); + + if (lease->domains_count) { + *domains = lease->domains; + return lease->domains_count; + } + + return -ENOENT; +} + +int dhcp6_lease_set_ntp(sd_dhcp6_lease *lease, uint8_t *optval, size_t optlen) +{ + int r; + uint16_t subopt; + size_t sublen; + uint8_t *subval; + + assert_return(lease, -EINVAL); + assert_return(optval, -EINVAL); + + free(lease->ntp); + lease->ntp_count = 0; + lease->ntp_allocated = 0; + + while ((r = dhcp6_option_parse(&optval, &optlen, &subopt, &sublen, + &subval)) >= 0) { + int s; + char **servers; + + switch(subopt) { + case DHCP6_NTP_SUBOPTION_SRV_ADDR: + case DHCP6_NTP_SUBOPTION_MC_ADDR: + if (sublen != 16) + return 0; + + s = dhcp6_option_parse_ip6addrs(subval, sublen, + &lease->ntp, + lease->ntp_count, + &lease->ntp_allocated); + if (s < 0) + return s; + + lease->ntp_count = s; + + break; + + case DHCP6_NTP_SUBOPTION_SRV_FQDN: + r = dhcp6_option_parse_domainname(subval, sublen, + &servers); + if (r < 0) + return 0; + + lease->ntp_fqdn = strv_free(lease->ntp_fqdn); + lease->ntp_fqdn = servers; + lease->ntp_fqdn_count = r; + + break; + } + } + + if (r != -ENOMSG) + return r; + + return 0; +} + +int dhcp6_lease_set_sntp(sd_dhcp6_lease *lease, uint8_t *optval, size_t optlen) { + int r; + + assert_return(lease, -EINVAL); + assert_return(optval, -EINVAL); + + if (!optlen) + return 0; + + if (lease->ntp || lease->ntp_fqdn) { + log_dhcp6_client(client, "NTP information already provided"); + + return 0; + } + + log_dhcp6_client(client, "Using deprecated SNTP information"); + + r = dhcp6_option_parse_ip6addrs(optval, optlen, &lease->ntp, + lease->ntp_count, + &lease->ntp_allocated); + if (r < 0) { + log_dhcp6_client(client, "Invalid SNTP server option: %s", + strerror(-r)); + + return r; + } + + lease->ntp_count = r; + + return 0; +} + +int sd_dhcp6_lease_get_ntp_addrs(sd_dhcp6_lease *lease, + struct in6_addr **addrs) { + assert_return(lease, -EINVAL); + assert_return(addrs, -EINVAL); + + if (lease->ntp_count) { + *addrs = lease->ntp; + return lease->ntp_count; + } + + return -ENOENT; +} + +int sd_dhcp6_lease_get_ntp_fqdn(sd_dhcp6_lease *lease, char ***ntp_fqdn) { + assert_return(lease, -EINVAL); + assert_return(ntp_fqdn, -EINVAL); + + if (lease->ntp_fqdn_count) { + *ntp_fqdn = lease->ntp_fqdn; + return lease->ntp_fqdn_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 +372,13 @@ sd_dhcp6_lease *sd_dhcp6_lease_unref(sd_dhcp6_lease *lease) { free(lease->serverid); dhcp6_lease_free_ia(&lease->ia); + free(lease->dns); + + lease->domains = strv_free(lease->domains); + + free(lease->ntp); + + lease->ntp_fqdn = strv_free(lease->ntp_fqdn); free(lease); } |