diff options
| -rw-r--r-- | src/libsystemd-network/dhcp-lease-internal.h | 1 | ||||
| -rw-r--r-- | src/libsystemd-network/sd-dhcp-client.c | 4 | ||||
| -rw-r--r-- | src/libsystemd-network/sd-dhcp-lease.c | 33 | ||||
| -rw-r--r-- | src/systemd/sd-dhcp-lease.h | 1 |
4 files changed, 38 insertions, 1 deletions
diff --git a/src/libsystemd-network/dhcp-lease-internal.h b/src/libsystemd-network/dhcp-lease-internal.h index 1b157fd45..70f1aa15e 100644 --- a/src/libsystemd-network/dhcp-lease-internal.h +++ b/src/libsystemd-network/dhcp-lease-internal.h @@ -41,6 +41,7 @@ struct sd_dhcp_lease { be32_t server_address; be32_t subnet_mask; be32_t router; + be32_t next_server; struct in_addr *dns; size_t dns_size; uint16_t mtu; diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c index 1f676ccb6..b6810a9ef 100644 --- a/src/libsystemd-network/sd-dhcp-client.c +++ b/src/libsystemd-network/sd-dhcp-client.c @@ -587,6 +587,8 @@ static int client_handle_offer(sd_dhcp_client *client, DHCPMessage *offer, if (r != DHCP_OFFER) return -ENOMSG; + lease->next_server = offer->siaddr; + lease->address = offer->yiaddr; if (lease->address == INADDR_ANY || @@ -621,6 +623,8 @@ static int client_handle_ack(sd_dhcp_client *client, DHCPMessage *ack, if (r != DHCP_ACK) return -ENOMSG; + lease->next_server = ack->siaddr; + lease->address = ack->yiaddr; if (lease->address == INADDR_ANY || diff --git a/src/libsystemd-network/sd-dhcp-lease.c b/src/libsystemd-network/sd-dhcp-lease.c index 6bd972837..f7a204af8 100644 --- a/src/libsystemd-network/sd-dhcp-lease.c +++ b/src/libsystemd-network/sd-dhcp-lease.c @@ -135,6 +135,15 @@ int sd_dhcp_lease_get_server_identifier(sd_dhcp_lease *lease, struct in_addr *ad return 0; } +int sd_dhcp_lease_get_next_server(sd_dhcp_lease *lease, struct in_addr *addr) { + assert_return(lease, -EINVAL); + assert_return(addr, -EINVAL); + + addr->s_addr = lease->next_server; + + return 0; +} + sd_dhcp_lease *sd_dhcp_lease_ref(sd_dhcp_lease *lease) { if (lease) assert_se(REFCNT_INC(lease->n_ref) >= 2); @@ -350,6 +359,18 @@ int dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) { "SERVER_ADDRESS=%s\n", string); } + r = sd_dhcp_lease_get_next_server(lease, &address); + if (r >= 0) { + string = inet_ntop(AF_INET, &address, buf, INET_ADDRSTRLEN); + if (!string) { + r = -errno; + goto finish; + } + + fprintf(f, + "NEXT_SERVER=%s\n", string); + } + r = sd_dhcp_lease_get_mtu(lease, &mtu); if (r >= 0) fprintf(f, "MTU=%" PRIu16 "\n", mtu); @@ -388,7 +409,8 @@ finish: int dhcp_lease_load(const char *lease_file, sd_dhcp_lease **ret) { _cleanup_dhcp_lease_unref_ sd_dhcp_lease *lease = NULL; _cleanup_free_ char *address = NULL, *router = NULL, *netmask = NULL, - *server_address = NULL, *mtu = NULL; + *server_address = NULL, *next_server = NULL, + *mtu = NULL; struct in_addr addr; int r; @@ -404,6 +426,7 @@ int dhcp_lease_load(const char *lease_file, sd_dhcp_lease **ret) { "ROUTER", &router, "NETMASK", &netmask, "SERVER_IDENTIFIER", &server_address, + "NEXT_SERVER", &next_server, "MTU", &mtu, "DOMAINNAME", &lease->domainname, "HOSTNAME", &lease->hostname, @@ -443,6 +466,14 @@ int dhcp_lease_load(const char *lease_file, sd_dhcp_lease **ret) { lease->server_address = addr.s_addr; } + if (next_server) { + r = inet_pton(AF_INET, next_server, &addr); + if (r < 0) + return r; + + lease->next_server = addr.s_addr; + } + if (mtu) { uint16_t u; if (sscanf(mtu, "%" SCNu16, &u) > 0) diff --git a/src/systemd/sd-dhcp-lease.h b/src/systemd/sd-dhcp-lease.h index 7e737a90c..f3595ebc5 100644 --- a/src/systemd/sd-dhcp-lease.h +++ b/src/systemd/sd-dhcp-lease.h @@ -33,6 +33,7 @@ sd_dhcp_lease *sd_dhcp_lease_unref(sd_dhcp_lease *lease); int sd_dhcp_lease_get_address(sd_dhcp_lease *lease, struct in_addr *addr); int sd_dhcp_lease_get_netmask(sd_dhcp_lease *lease, struct in_addr *addr); int sd_dhcp_lease_get_router(sd_dhcp_lease *lease, struct in_addr *addr); +int sd_dhcp_lease_get_next_server(sd_dhcp_lease *lease, struct in_addr *addr); int sd_dhcp_lease_get_server_identifier(sd_dhcp_lease *lease, struct in_addr *addr); int sd_dhcp_lease_get_dns(sd_dhcp_lease *lease, struct in_addr **addr, size_t *addr_size); int sd_dhcp_lease_get_mtu(sd_dhcp_lease *lease, uint16_t *mtu); |