diff options
| author | Tom Gundersen <teg@jklm.no> | 2015-11-16 17:43:08 +0100 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2015-11-17 14:17:41 +0100 |
| commit | c601ebf79f0c54be14d3c16f0f484c0335cdeec4 (patch) | |
| tree | c13fb6b3eb731d5f885bf0bed63935d84bb6fc02 /src/libsystemd-network/sd-dhcp6-client.c | |
| parent | fb84d8966e5ce49b0c705768bb4da4956c4e529a (diff) | |
sd-dhcp6-client: bind to link-local address
This ensures that several DHCPv6 clients can run on separate interfaces
simultaneously.
Diffstat (limited to 'src/libsystemd-network/sd-dhcp6-client.c')
| -rw-r--r-- | src/libsystemd-network/sd-dhcp6-client.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c index a9518791b3..801331d270 100644 --- a/src/libsystemd-network/sd-dhcp6-client.c +++ b/src/libsystemd-network/sd-dhcp6-client.c @@ -32,6 +32,7 @@ #include "dhcp6-lease-internal.h" #include "dhcp6-protocol.h" #include "fd-util.h" +#include "in-addr-util.h" #include "network-internal.h" #include "random-util.h" #include "string-table.h" @@ -46,6 +47,7 @@ struct sd_dhcp6_client { sd_event *event; int event_priority; int index; + struct in6_addr local_address; uint8_t mac_addr[MAX_MAC_ADDR_LEN]; size_t mac_addr_len; uint16_t arp_type; @@ -133,6 +135,18 @@ int sd_dhcp6_client_set_index(sd_dhcp6_client *client, int interface_index) { return 0; } +int sd_dhcp6_client_set_local_address(sd_dhcp6_client *client, const struct in6_addr *local_address) { + assert_return(client, -EINVAL); + assert_return(local_address, -EINVAL); + assert_return(in_addr_is_link_local(AF_INET6, (const union in_addr_union *) local_address) > 0, -EINVAL); + + assert_return(IN_SET(client->state, DHCP6_STATE_STOPPED), -EBUSY); + + client->local_address = *local_address; + + return 0; +} + int sd_dhcp6_client_set_mac( sd_dhcp6_client *client, const uint8_t *addr, size_t addr_len, @@ -1135,6 +1149,7 @@ int sd_dhcp6_client_start(sd_dhcp6_client *client) { assert_return(client, -EINVAL); assert_return(client->event, -EINVAL); assert_return(client->index > 0, -EINVAL); + assert_return(in_addr_is_link_local(AF_INET6, (const union in_addr_union *) &client->local_address) > 0, -EINVAL); if (!IN_SET(client->state, DHCP6_STATE_STOPPED)) return -EBUSY; @@ -1151,7 +1166,7 @@ int sd_dhcp6_client_start(sd_dhcp6_client *client) { if (r < 0) return r; - r = dhcp6_network_bind_udp_socket(client->index, NULL); + r = dhcp6_network_bind_udp_socket(client->index, &client->local_address); if (r < 0) return r; |