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| author | Martin Willi <martin@revosec.ch> | 2010-03-24 11:22:54 +0100 |
|---|---|---|
| committer | Martin Willi <martin@revosec.ch> | 2010-03-25 14:28:29 +0100 |
| commit | e06a6154e21c22e5fa44339a60b69a6b6e0602c0 (patch) | |
| tree | ee8ed21b579b141c8bb8c6905958155d0e765160 /src | |
| parent | 4f0932ecfeb7400e39b990ac2a7716657d4bbe09 (diff) | |
| download | strongswan-e06a6154e21c22e5fa44339a60b69a6b6e0602c0.tar.bz2 strongswan-e06a6154e21c22e5fa44339a60b69a6b6e0602c0.tar.xz | |
Added identity_lease option to create random or identity based DHCP leases
Diffstat (limited to 'src')
| -rw-r--r-- | src/libcharon/plugins/dhcp/dhcp_socket.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/src/libcharon/plugins/dhcp/dhcp_socket.c b/src/libcharon/plugins/dhcp/dhcp_socket.c index 2d0e63c59..8921228fc 100644 --- a/src/libcharon/plugins/dhcp/dhcp_socket.c +++ b/src/libcharon/plugins/dhcp/dhcp_socket.c @@ -96,6 +96,11 @@ struct private_dhcp_socket_t { int receive; /** + * Do we use per-identity or random leases (and MAC addresses) + */ + bool identity_lease; + + /** * DHCP server address, or broadcast */ host_t *dst; @@ -192,7 +197,7 @@ static int prepare_dhcp(private_dhcp_socket_t *this, dhcp_option_t *option; int optlen = 0; host_t *src; - u_int hash; + u_int32_t id; memset(dhcp, 0, sizeof(*dhcp)); dhcp->opcode = BOOTREQUEST; @@ -222,8 +227,15 @@ static int prepare_dhcp(private_dhcp_socket_t *this, dhcp->client_hw_addr[0] = 0x7A; dhcp->client_hw_addr[1] = 0xA7; /* with ID specific postfix */ - hash = htonl(chunk_hash(chunk)); - memcpy(&dhcp->client_hw_addr[2], &hash, 4); + if (this->identity_lease) + { + id = htonl(chunk_hash(chunk)); + } + else + { + id = transaction->get_id(transaction); + } + memcpy(&dhcp->client_hw_addr[2], &id, sizeof(id)); dhcp->magic_cookie = htonl(0x63825363); @@ -600,6 +612,8 @@ dhcp_socket_t *dhcp_socket_create() destroy(this); return NULL; } + this->identity_lease = lib->settings->get_bool(lib->settings, + "charon.plugins.dhcp.identity_lease", FALSE); this->dst = host_create_from_string(lib->settings->get_str(lib->settings, "charon.plugins.dhcp.server", "255.255.255.255"), DHCP_SERVER_PORT); |