diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/vnet.am | 26 | ||||
-rw-r--r-- | src/vnet/dhcp/client.c | 2 | ||||
-rw-r--r-- | src/vnet/dhcp/client.h | 2 | ||||
-rw-r--r-- | src/vnet/dhcp/dhcp4_packet.h (renamed from src/vnet/dhcp/packet.h) | 6 | ||||
-rw-r--r-- | src/vnet/dhcp/dhcp4_proxy_error.def (renamed from src/vnet/dhcp/proxy_error.def) | 1 | ||||
-rw-r--r-- | src/vnet/dhcp/dhcp4_proxy_node.c (renamed from src/vnet/dhcp/proxy_node.c) | 423 | ||||
-rw-r--r-- | src/vnet/dhcp/dhcp6_packet.h (renamed from src/vnet/dhcpv6/packet.h) | 6 | ||||
-rw-r--r-- | src/vnet/dhcp/dhcp6_proxy_error.def (renamed from src/vnet/dhcpv6/proxy_error.def) | 0 | ||||
-rw-r--r-- | src/vnet/dhcp/dhcp6_proxy_node.c (renamed from src/vnet/dhcpv6/proxy_node.c) | 529 | ||||
-rw-r--r-- | src/vnet/dhcp/dhcp_api.c | 95 | ||||
-rw-r--r-- | src/vnet/dhcp/dhcp_proxy.c | 275 | ||||
-rw-r--r-- | src/vnet/dhcp/dhcp_proxy.h | 248 | ||||
-rw-r--r-- | src/vnet/dhcp/proxy.h | 99 | ||||
-rw-r--r-- | src/vnet/dhcpv6/proxy.h | 94 | ||||
-rw-r--r-- | src/vpp/api/custom_dump.c | 3 |
15 files changed, 850 insertions, 959 deletions
diff --git a/src/vnet.am b/src/vnet.am index 70f1e7e95bd..64484e18486 100644 --- a/src/vnet.am +++ b/src/vnet.am @@ -674,7 +674,7 @@ libvnet_la_SOURCES += \ vnet/dhcp/dhcp_api.c nobase_include_HEADERS += \ - vnet/dhcp/client.h \ + vnet/dhcp/client.h \ vnet/dhcp/dhcp.api.h API_FILES += vnet/dhcp/dhcp.api @@ -683,13 +683,16 @@ API_FILES += vnet/dhcp/dhcp.api # DHCP proxy ######################################## libvnet_la_SOURCES += \ - vnet/dhcp/proxy_node.c \ - vnet/dhcp/proxy.h + vnet/dhcp/dhcp6_proxy_node.c \ + vnet/dhcp/dhcp4_proxy_node.c \ + vnet/dhcp/dhcp_proxy.c nobase_include_HEADERS += \ - vnet/dhcp/packet.h \ - vnet/dhcp/proxy.h \ - vnet/dhcp/proxy_error.def + vnet/dhcp/dhcp4_packet.h \ + vnet/dhcp/dhcp6_packet.h \ + vnet/dhcp/dhcp_proxy.h \ + vnet/dhcp/dhcp6_proxy_error.def \ + vnet/dhcp/dhcp4_proxy_error.def ######################################## # ipv6 segment routing @@ -710,17 +713,6 @@ nobase_include_HEADERS += \ API_FILES += vnet/sr/sr.api ######################################## -# DHCPv6 proxy -######################################## -libvnet_la_SOURCES += \ - vnet/dhcpv6/proxy_node.c - -nobase_include_HEADERS += \ - vnet/dhcpv6/packet.h \ - vnet/dhcpv6/proxy.h \ - vnet/dhcpv6/proxy_error.def - -######################################## # IPFIX / netflow v10 ######################################## libvnet_la_SOURCES += \ diff --git a/src/vnet/dhcp/client.c b/src/vnet/dhcp/client.c index 8a1a43b3fd4..d34c5a645eb 100644 --- a/src/vnet/dhcp/client.c +++ b/src/vnet/dhcp/client.c @@ -14,7 +14,7 @@ */ #include <vlib/vlib.h> #include <vnet/dhcp/client.h> -#include <vnet/dhcp/proxy.h> +#include <vnet/dhcp/dhcp_proxy.h> #include <vnet/fib/fib_table.h> dhcp_client_main_t dhcp_client_main; diff --git a/src/vnet/dhcp/client.h b/src/vnet/dhcp/client.h index a74368cbe07..1f85d7ce772 100644 --- a/src/vnet/dhcp/client.h +++ b/src/vnet/dhcp/client.h @@ -20,7 +20,7 @@ #define included_dhcp_client_h #include <vnet/ip/ip.h> -#include <vnet/dhcp/packet.h> +#include <vnet/dhcp/dhcp4_packet.h> #define foreach_dhcp_client_state \ _(DHCP_DISCOVER) \ diff --git a/src/vnet/dhcp/packet.h b/src/vnet/dhcp/dhcp4_packet.h index 267a8eafc93..28c4b156e5c 100644 --- a/src/vnet/dhcp/packet.h +++ b/src/vnet/dhcp/dhcp4_packet.h @@ -1,5 +1,5 @@ -#ifndef included_vnet_dhcp_packet_h -#define included_vnet_dhcp_packet_h +#ifndef included_vnet_dhcp4_packet_h +#define included_vnet_dhcp4_packet_h /* * DHCP packet format @@ -58,4 +58,4 @@ typedef enum { /* charming antique: 99.130.83.99 is the dhcp magic cookie */ #define DHCP_MAGIC (clib_host_to_net_u32(0x63825363)) -#endif /* included_vnet_dhcp_packet_h */ +#endif /* included_vnet_dhcp4_packet_h */ diff --git a/src/vnet/dhcp/proxy_error.def b/src/vnet/dhcp/dhcp4_proxy_error.def index 6d790d732d6..adf04808fa3 100644 --- a/src/vnet/dhcp/proxy_error.def +++ b/src/vnet/dhcp/dhcp4_proxy_error.def @@ -29,3 +29,4 @@ dhcp_proxy_error (OPTION_82_VSS_NOT_PROCESSED, "DHCP VSS not processed by DHCP s dhcp_proxy_error (BAD_YIADDR, "DHCP packets with bad your_ip_address fields") dhcp_proxy_error (BAD_SVR_FIB_OR_ADDRESS, "DHCP packets not from DHCP server or server FIB.") dhcp_proxy_error (PKT_TOO_BIG, "DHCP packets which are too big.") + diff --git a/src/vnet/dhcp/proxy_node.c b/src/vnet/dhcp/dhcp4_proxy_node.c index ab6819fed54..88a99249684 100644 --- a/src/vnet/dhcp/proxy_node.c +++ b/src/vnet/dhcp/dhcp4_proxy_node.c @@ -17,13 +17,13 @@ #include <vlib/vlib.h> #include <vnet/pg/pg.h> -#include <vnet/dhcp/proxy.h> +#include <vnet/dhcp/dhcp_proxy.h> #include <vnet/dhcp/client.h> #include <vnet/fib/ip4_fib.h> static char * dhcp_proxy_error_strings[] = { #define dhcp_proxy_error(n,s) s, -#include "proxy_error.def" +#include <vnet/dhcp/dhcp4_proxy_error.def> #undef dhcp_proxy_error }; @@ -55,12 +55,11 @@ typedef struct { VPP_DHCP_OPTION82_SUB5_SIZE + \ VPP_DHCP_OPTION82_VSS_SIZE +3) -vlib_node_registration_t dhcp_proxy_to_server_node; -vlib_node_registration_t dhcp_proxy_to_client_node; +static vlib_node_registration_t dhcp_proxy_to_server_node; +static vlib_node_registration_t dhcp_proxy_to_client_node; -dhcp_proxy_main_t dhcp_proxy_main; - -u8 * format_dhcp_proxy_trace (u8 * s, va_list * args) +static u8 * +format_dhcp_proxy_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); @@ -82,7 +81,8 @@ u8 * format_dhcp_proxy_trace (u8 * s, va_list * args) return s; } -u8 * format_dhcp_proxy_header_with_length (u8 * s, va_list * args) +static u8 * +format_dhcp_proxy_header_with_length (u8 * s, va_list * args) { dhcp_header_t * h = va_arg (*args, dhcp_header_t *); u32 max_header_bytes = va_arg (*args, u32); @@ -97,42 +97,6 @@ u8 * format_dhcp_proxy_header_with_length (u8 * s, va_list * args) return s; } -static inline vss_info * -dhcp_get_vss_info (dhcp_proxy_main_t *dm, - u32 rx_fib_index) -{ - vss_info *v; - - if (vec_len(dm->vss_index_by_rx_fib_index) <= rx_fib_index || - dm->vss_index_by_rx_fib_index[rx_fib_index] == ~0) - { - v = NULL; - } - else - { - v = pool_elt_at_index (dm->vss, - dm->vss_index_by_rx_fib_index[rx_fib_index]); - } - - return (v); -} - -static inline dhcp_server_t * -dhcp_get_server (dhcp_proxy_main_t *dm, - u32 rx_fib_index) -{ - dhcp_server_t *s = NULL; - - if (vec_len(dm->dhcp_server_index_by_rx_fib_index) > rx_fib_index && - dm->dhcp_server_index_by_rx_fib_index[rx_fib_index] != ~0) - { - s = pool_elt_at_index (dm->dhcp_servers, - dm->dhcp_server_index_by_rx_fib_index[rx_fib_index]); - } - - return (s); -} - static uword dhcp_proxy_to_server_input (vlib_main_t * vm, vlib_node_runtime_t * node, @@ -208,7 +172,7 @@ dhcp_proxy_to_server_input (vlib_main_t * vm, rx_sw_if_index = vnet_buffer(b0)->sw_if_index[VLIB_RX]; fib_index = im->fib_index_by_sw_if_index [rx_sw_if_index]; - server = dhcp_get_server(dpm, fib_index); + server = dhcp_get_server(dpm, fib_index, FIB_PROTOCOL_IP4); if (PREDICT_FALSE (NULL == server)) { @@ -225,8 +189,8 @@ dhcp_proxy_to_server_input (vlib_main_t * vm, u0->checksum = 0; sum0 = ip0->checksum; old0 = ip0->dst_address.as_u32; - new0 = server->dhcp_server.as_u32; - ip0->dst_address.as_u32 = server->dhcp_server.as_u32; + new0 = server->dhcp_server.ip4.as_u32; + ip0->dst_address.as_u32 = server->dhcp_server.ip4.as_u32; sum0 = ip_csum_update (sum0, old0, new0, ip4_header_t /* structure */, dst_address /* changed member */); @@ -234,7 +198,7 @@ dhcp_proxy_to_server_input (vlib_main_t * vm, sum0 = ip0->checksum; old0 = ip0->src_address.as_u32; - new0 = server->dhcp_src_address.as_u32; + new0 = server->dhcp_src_address.ip4.as_u32; ip0->src_address.as_u32 = new0; sum0 = ip_csum_update (sum0, old0, new0, ip4_header_t /* structure */, @@ -245,7 +209,7 @@ dhcp_proxy_to_server_input (vlib_main_t * vm, vnet_buffer(b0)->sw_if_index[VLIB_TX] = server->server_fib_index; - h0->gateway_ip_address.as_u32 = server->dhcp_src_address.as_u32; + h0->gateway_ip_address.as_u32 = server->dhcp_src_address.ip4.as_u32; pkts_to_server++; o = (dhcp_option_t *) h0->options; @@ -272,7 +236,7 @@ dhcp_proxy_to_server_input (vlib_main_t * vm, vnet_main_t *vnm = vnet_get_main(); u16 old_l0, new_l0; ip4_address_t _ia0, * ia0 = &_ia0; - vss_info *vss; + dhcp_vss_t *vss; vnet_sw_interface_t *swif; sw_if_index = 0; original_sw_if_index = 0; @@ -315,13 +279,13 @@ dhcp_proxy_to_server_input (vlib_main_t * vm, o->data[11] = ia0->as_u8[3]; o->data[12] = 0xFF; - vss = dhcp_get_vss_info (dpm, fib_index); + vss = dhcp_get_vss_info (dpm, fib_index, FIB_PROTOCOL_IP4); if (NULL != vss) { u32 opt82_fib_id=0, opt82_oui=0; - opt82_oui = vss->vpn_id.oui; - opt82_fib_id = vss->vpn_id.fib_id; + opt82_oui = vss->oui; + opt82_fib_id = vss->fib_id; o->data[12] = 151; /* vss suboption */ if (255 == opt82_fib_id) { @@ -386,7 +350,7 @@ dhcp_proxy_to_server_input (vlib_main_t * vm, tr->original_sw_if_index = original_sw_if_index; tr->sw_if_index = sw_if_index; if (next0 == DHCP_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP) - tr->trace_ip4_address.as_u32 = server->dhcp_server.as_u32; + tr->trace_ip4_address.as_u32 = server->dhcp_server.ip4.as_u32; } do_enqueue: @@ -416,7 +380,7 @@ dhcp_proxy_to_server_input (vlib_main_t * vm, return from_frame->n_vectors; } -VLIB_REGISTER_NODE (dhcp_proxy_to_server_node) = { +VLIB_REGISTER_NODE (dhcp_proxy_to_server_node, static) = { .function = dhcp_proxy_to_server_input, .name = "dhcp-proxy-to-server", /* Takes a vector of packets. */ @@ -583,7 +547,7 @@ dhcp_proxy_to_client_input (vlib_main_t * vm, } fib_index = im->fib_index_by_sw_if_index [sw_if_index]; - server = dhcp_get_server(dpm, fib_index); + server = dhcp_get_server(dpm, fib_index, FIB_PROTOCOL_IP4); if (PREDICT_FALSE (NULL == server)) { @@ -591,7 +555,7 @@ dhcp_proxy_to_client_input (vlib_main_t * vm, goto drop_packet; } - if (ip0->src_address.as_u32 != server->dhcp_server.as_u32) + if (ip0->src_address.as_u32 != server->dhcp_server.ip4.as_u32) { error0 = DHCP_PROXY_ERROR_BAD_SVR_FIB_OR_ADDRESS; goto drop_packet; @@ -681,7 +645,7 @@ dhcp_proxy_to_client_input (vlib_main_t * vm, return from_frame->n_vectors; } -VLIB_REGISTER_NODE (dhcp_proxy_to_client_node) = { +VLIB_REGISTER_NODE (dhcp_proxy_to_client_node, static) = { .function = dhcp_proxy_to_client_input, .name = "dhcp-proxy-to-client", /* Takes a vector of packets. */ @@ -696,44 +660,36 @@ VLIB_REGISTER_NODE (dhcp_proxy_to_client_node) = { #endif }; -clib_error_t * dhcp_proxy_init (vlib_main_t * vm) +static clib_error_t * +dhcp4_proxy_init (vlib_main_t * vm) { dhcp_proxy_main_t * dm = &dhcp_proxy_main; vlib_node_t * error_drop_node; - dhcp_server_t * server; - dm->vlib_main = vm; - dm->vnet_main = vnet_get_main(); error_drop_node = vlib_get_node_by_name (vm, (u8 *) "error-drop"); dm->error_drop_node_index = error_drop_node->index; - dm->vss_index_by_rx_fib_index = NULL; - udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_client, dhcp_proxy_to_client_node.index, 1 /* is_ip4 */); udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_server, dhcp_proxy_to_server_node.index, 1 /* is_ip4 */); - /* Create the default server, don't mark it valid */ - pool_get (dm->dhcp_servers, server); - memset (server, 0, sizeof (*server)); - return 0; } -VLIB_INIT_FUNCTION (dhcp_proxy_init); -int dhcp_proxy_set_server (ip4_address_t *addr, - ip4_address_t *src_address, - u32 rx_fib_id, - u32 server_fib_id, - int is_del) +VLIB_INIT_FUNCTION (dhcp4_proxy_init); + +int +dhcp4_proxy_set_server (ip46_address_t *addr, + ip46_address_t *src_addr, + u32 rx_table_id, + u32 server_table_id, + int is_del) { - dhcp_proxy_main_t * dpm = &dhcp_proxy_main; - dhcp_server_t * server = 0; - u32 server_index = 0; u32 rx_fib_index = 0; + int rc = 0; const fib_prefix_t all_1s = { @@ -742,98 +698,70 @@ int dhcp_proxy_set_server (ip4_address_t *addr, .fp_proto = FIB_PROTOCOL_IP4, }; - if (addr->as_u32 == 0) + if (ip46_address_is_zero(addr)) return VNET_API_ERROR_INVALID_DST_ADDRESS; - if (src_address->as_u32 == 0) + if (ip46_address_is_zero(src_addr)) return VNET_API_ERROR_INVALID_SRC_ADDRESS; rx_fib_index = fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4, - rx_fib_id); + rx_table_id); if (is_del) { - if (rx_fib_index >= vec_len(dpm->dhcp_server_index_by_rx_fib_index)) - return VNET_API_ERROR_NO_SUCH_ENTRY; - - server_index = dpm->dhcp_server_index_by_rx_fib_index[rx_fib_index]; - - if (server_index == ~0) - return VNET_API_ERROR_NO_SUCH_ENTRY; - - /* Use the default server again. */ - dpm->dhcp_server_index_by_rx_fib_index[rx_fib_index] = ~0; - server = pool_elt_at_index (dpm->dhcp_servers, server_index); - - fib_table_entry_special_remove(rx_fib_index, - &all_1s, - FIB_SOURCE_DHCP); - fib_table_unlock (rx_fib_index, - FIB_PROTOCOL_IP4); - fib_table_unlock (server->server_fib_index, - FIB_PROTOCOL_IP4); - - memset (server, 0, sizeof (*server)); - pool_put (dpm->dhcp_servers, server); - return 0; + rc = dhcp_proxy_server_del (FIB_PROTOCOL_IP4, rx_fib_index); + + if (0 == rc) + { + fib_table_entry_special_remove(rx_fib_index, + &all_1s, + FIB_SOURCE_DHCP); + fib_table_unlock (rx_fib_index, FIB_PROTOCOL_IP4); + } } else { - vec_validate_init_empty(dpm->dhcp_server_index_by_rx_fib_index, - rx_fib_index, - ~0); - - pool_get (dpm->dhcp_servers, server); - - server->dhcp_server.as_u32 = addr->as_u32; - server->dhcp_src_address.as_u32 = src_address->as_u32; - - fib_table_entry_special_add(rx_fib_index, - &all_1s, - FIB_SOURCE_DHCP, - FIB_ENTRY_FLAG_LOCAL, - ADJ_INDEX_INVALID); - fib_table_lock (rx_fib_index, - FIB_PROTOCOL_IP4); - - server->server_fib_index = - fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4, - server_fib_id); - - vec_validate_init_empty (dpm->dhcp_server_index_by_rx_fib_index, - rx_fib_index, - ~0); - dpm->dhcp_server_index_by_rx_fib_index[rx_fib_index] = - server - dpm->dhcp_servers; + if (dhcp_proxy_server_add (FIB_PROTOCOL_IP4, + addr, src_addr, + rx_fib_index, server_table_id)) + { + fib_table_entry_special_add(rx_fib_index, + &all_1s, + FIB_SOURCE_DHCP, + FIB_ENTRY_FLAG_LOCAL, + ADJ_INDEX_INVALID); + fib_table_lock (rx_fib_index, FIB_PROTOCOL_IP4); + } } + fib_table_unlock (rx_fib_index, FIB_PROTOCOL_IP4); - fib_table_unlock (rx_fib_index, - FIB_PROTOCOL_IP4); - - return 0; + return (rc); } static clib_error_t * -dhcp_proxy_set_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) +dhcp4_proxy_set_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) { - ip4_address_t server_addr, src_addr; - u32 server_fib_id = 0, rx_fib_id = 0; + ip46_address_t server_addr, src_addr; + u32 server_table_id = 0, rx_table_id = 0; int is_del = 0; int set_src = 0, set_server = 0; - + + memset(&server_addr, 0, sizeof(server_addr)); + memset(&src_addr, 0, sizeof(src_addr)); + while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "server %U", - unformat_ip4_address, &server_addr)) + unformat_ip4_address, &server_addr.ip4)) set_server = 1; - else if (unformat (input, "server-fib-id %d", &server_fib_id)) + else if (unformat (input, "server-fib-id %d", &server_table_id)) ; - else if (unformat (input, "rx-fib-id %d", &rx_fib_id)) + else if (unformat (input, "rx-fib-id %d", &rx_table_id)) ; else if (unformat(input, "src-address %U", - unformat_ip4_address, &src_addr)) + unformat_ip4_address, &src_addr.ip4)) set_src = 1; else if (unformat (input, "delete") || unformat (input, "del")) @@ -846,8 +774,8 @@ dhcp_proxy_set_command_fn (vlib_main_t * vm, { int rv; - rv = dhcp_proxy_set_server (&server_addr, &src_addr, rx_fib_id, - server_fib_id, is_del); + rv = dhcp4_proxy_set_server (&server_addr, &src_addr, rx_table_id, + server_table_id, is_del); switch (rv) { case 0: @@ -858,17 +786,10 @@ dhcp_proxy_set_command_fn (vlib_main_t * vm, case VNET_API_ERROR_INVALID_SRC_ADDRESS: return clib_error_return (0, "Invalid src address"); - - case VNET_API_ERROR_NO_SUCH_INNER_FIB: - return clib_error_return (0, "No such rx fib id %d", rx_fib_id); - - case VNET_API_ERROR_NO_SUCH_FIB: - return clib_error_return (0, "No such server fib id %d", - server_fib_id); case VNET_API_ERROR_NO_SUCH_ENTRY: return clib_error_return - (0, "Fib id %d: no per-fib DHCP server configured", rx_fib_id); + (0, "Fib id %d: no per-fib DHCP server configured", rx_table_id); default: return clib_error_return (0, "BUG: rv %d", rv); @@ -882,18 +803,16 @@ dhcp_proxy_set_command_fn (vlib_main_t * vm, VLIB_CLI_COMMAND (dhcp_proxy_set_command, static) = { .path = "set dhcp proxy", .short_help = "set dhcp proxy [del] server <ip-addr> src-address <ip-addr> [server-fib-id <n>] [rx-fib-id <n>]", - .function = dhcp_proxy_set_command_fn, + .function = dhcp4_proxy_set_command_fn, }; -u8 * format_dhcp_proxy_server (u8 * s, va_list * args) +static u8 * +format_dhcp4_proxy_server (u8 * s, va_list * args) { - dhcp_proxy_main_t * dm = va_arg (*args, dhcp_proxy_main_t *); dhcp_server_t * server = va_arg (*args, dhcp_server_t *); - u32 rx_fib_index = va_arg (*args, u32); ip4_fib_t * rx_fib, * server_fib; - u32 server_fib_id = ~0, rx_fib_id = ~0; - if (dm == 0) + if (server == 0) { s = format (s, "%=16s%=16s%=14s%=14s", "Server", "Src Address", "Server FIB", "RX FIB"); @@ -901,155 +820,45 @@ u8 * format_dhcp_proxy_server (u8 * s, va_list * args) } server_fib = ip4_fib_get(server->server_fib_index); - - if (server_fib) - server_fib_id = server_fib->table_id; - - rx_fib = ip4_fib_get(rx_fib_index); - - if (rx_fib) - rx_fib_id = rx_fib->table_id; + rx_fib = ip4_fib_get(server->rx_fib_index); s = format (s, "%=16U%=16U%=14u%=14u", - format_ip4_address, &server->dhcp_server, - format_ip4_address, &server->dhcp_src_address, - server_fib_id, rx_fib_id); + format_ip46_address, &server->dhcp_server, IP46_TYPE_ANY, + format_ip46_address, &server->dhcp_src_address, IP46_TYPE_ANY, + server_fib->table_id, + rx_fib->table_id); return s; } -static clib_error_t * -dhcp_proxy_show_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) +static int +dhcp4_proxy_show_walk (dhcp_server_t *server, + void *ctx) { - dhcp_proxy_main_t * dpm = &dhcp_proxy_main; - dhcp_server_t * server; - u32 server_index, i; + vlib_main_t * vm = ctx; - vlib_cli_output (vm, "%U", format_dhcp_proxy_server, 0 /* header line */, - 0, 0); + vlib_cli_output (vm, "%U", format_dhcp4_proxy_server, server); - vec_foreach_index (i, dpm->dhcp_server_index_by_rx_fib_index) - { - server_index = dpm->dhcp_server_index_by_rx_fib_index[i]; - if (~0 == server_index) - continue; + return (1); +} - server = pool_elt_at_index (dpm->dhcp_servers, server_index); +static clib_error_t * +dhcp4_proxy_show_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + vlib_cli_output (vm, "%U", format_dhcp4_proxy_server, NULL /* header line */); - vlib_cli_output (vm, "%U", format_dhcp_proxy_server, dpm, - server, i); - } + dhcp_proxy_walk(FIB_PROTOCOL_IP4, dhcp4_proxy_show_walk, vm); - return 0; + return (NULL); } VLIB_CLI_COMMAND (dhcp_proxy_show_command, static) = { .path = "show dhcp proxy", .short_help = "Display dhcp proxy server info", - .function = dhcp_proxy_show_command_fn, + .function = dhcp4_proxy_show_command_fn, }; -void -dhcp_proxy_dump (void *opaque, - u32 context) -{ - dhcp_proxy_main_t * dpm = &dhcp_proxy_main; - ip4_fib_t *s_fib, *r_fib; - dhcp_server_t * server; - u32 server_index, i; - vss_info *v; - - vec_foreach_index (i, dpm->dhcp_server_index_by_rx_fib_index) - { - server_index = dpm->dhcp_server_index_by_rx_fib_index[i]; - if (~0 == server_index) - continue; - - server = pool_elt_at_index (dpm->dhcp_servers, server_index); - v = dhcp_get_vss_info(dpm, i); - - ip46_address_t src_addr = { - .ip4 = server->dhcp_src_address, - }; - ip46_address_t server_addr = { - .ip4 = server->dhcp_server, - }; - - s_fib = ip4_fib_get(server->server_fib_index); - r_fib = ip4_fib_get(i); - - dhcp_send_details(opaque, - context, - &server_addr, - &src_addr, - s_fib->table_id, - r_fib->table_id, - (v ? v->vpn_id.fib_id : 0), - (v ? v->vpn_id.oui : 0)); - } -} - -int dhcp_proxy_set_option82_vss(u32 tbl_id, - u32 oui, - u32 fib_id, - int is_del) -{ - dhcp_proxy_main_t *dm = &dhcp_proxy_main; - vss_info *v = NULL; - u32 rx_fib_index; - int rc = 0; - - rx_fib_index = ip4_fib_table_find_or_create_and_lock(tbl_id); - v = dhcp_get_vss_info(dm, rx_fib_index); - - if (NULL != v) - { - if (is_del) - { - /* release the lock held on the table when the VSS - * info was created */ - fib_table_unlock (rx_fib_index, - FIB_PROTOCOL_IP4); - - pool_put (dm->vss, v); - dm->vss_index_by_rx_fib_index[rx_fib_index] = ~0; - } - else - { - /* this is a modify */ - v->vpn_id.fib_id = fib_id; - v->vpn_id.oui = oui; - } - } - else - { - if (is_del) - rc = VNET_API_ERROR_NO_SUCH_ENTRY; - else - { - /* create a new entry */ - vec_validate_init_empty(dm->vss_index_by_rx_fib_index, - rx_fib_index, ~0); - - /* hold a lock on the table whilst the VSS info exist */ - fib_table_lock (rx_fib_index, - FIB_PROTOCOL_IP4); - - pool_get (dm->vss, v); - v->vpn_id.fib_id = fib_id; - v->vpn_id.oui = oui; - dm->vss_index_by_rx_fib_index[rx_fib_index] = v - dm->vss; - } - } - - /* Release the lock taken during the create_or_lock at the start */ - fib_table_unlock (rx_fib_index, - FIB_PROTOCOL_IP4); - - return (rc); -} - static clib_error_t * dhcp_option_82_vss_fn (vlib_main_t * vm, unformat_input_t * input, @@ -1057,7 +866,6 @@ dhcp_option_82_vss_fn (vlib_main_t * vm, { int is_del = 0, got_new_vpn_id=0; u32 oui=0, fib_id=0, tbl_id=~0; - while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT) { @@ -1079,7 +887,7 @@ dhcp_option_82_vss_fn (vlib_main_t * vm, if (is_del || got_new_vpn_id) { int rv; - rv = dhcp_proxy_set_option82_vss(tbl_id, oui, fib_id, is_del); + rv = dhcp_proxy_set_vss(FIB_PROTOCOL_IP4, tbl_id, oui, fib_id, is_del); switch (rv) { case 0: @@ -1107,31 +915,15 @@ VLIB_CLI_COMMAND (dhcp_proxy_vss_command,static) = { .function = dhcp_option_82_vss_fn, }; - static clib_error_t * dhcp_vss_show_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { - dhcp_proxy_main_t * dm = &dhcp_proxy_main; - ip4_fib_t *fib; - u32 *fib_index; - vss_info *v; - - vlib_cli_output (vm, "%=9s%=11s%=12s","Table", "OUI", "VPN-ID"); - pool_foreach (fib_index, dm->vss_index_by_rx_fib_index, - ({ - fib = ip4_fib_get (*fib_index); - v = pool_elt_at_index (dm->vss, *fib_index); - - vlib_cli_output (vm, "%=6d%=6d%=12d", - fib->table_id, - v->vpn_id.oui, - v->vpn_id.fib_id); - })); - - return 0; + dhcp_vss_walk(FIB_PROTOCOL_IP4, dhcp_vss_show_walk, vm); + + return (NULL); } VLIB_CLI_COMMAND (dhcp_proxy_vss_show_command, static) = { @@ -1146,17 +938,16 @@ dhcp_option_82_address_show_command_fn (vlib_main_t * vm, vlib_cli_command_t * cmd) { - dhcp_proxy_main_t *dm = &dhcp_proxy_main; vnet_main_t *vnm = vnet_get_main(); u32 sw_if_index0=0, sw_if_index; - ip4_address_t *ia0; vnet_sw_interface_t *swif; + ip4_address_t *ia0; while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT) { if (unformat(input, "%U", - unformat_vnet_sw_interface, dm->vnet_main, &sw_if_index0)) + unformat_vnet_sw_interface, vnm, &sw_if_index0)) { swif = vnet_get_sw_interface (vnm, sw_if_index0); sw_if_index = (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) ? @@ -1169,14 +960,14 @@ dhcp_option_82_address_show_command_fn (vlib_main_t * vm, vlib_cli_output (vm, "%=20U%=20U", format_vnet_sw_if_index_name, - dm->vnet_main, sw_if_index0, + vnm, sw_if_index0, format_ip4_address, ia0); } else vlib_cli_output (vm, "%=34s %=20U", "No IPv4 address configured on", format_vnet_sw_if_index_name, - dm->vnet_main, sw_if_index); + vnm, sw_if_index); } else break; diff --git a/src/vnet/dhcpv6/packet.h b/src/vnet/dhcp/dhcp6_packet.h index 8634b5d8e9b..ddcde7a0dd9 100644 --- a/src/vnet/dhcpv6/packet.h +++ b/src/vnet/dhcp/dhcp6_packet.h @@ -1,5 +1,5 @@ -#ifndef included_vnet_dhcp_packet_h -#define included_vnet_dhcp_packet_h +#ifndef included_vnet_dhcp6_packet_h +#define included_vnet_dhcp6_packet_h /* * DHCP packet format @@ -180,4 +180,4 @@ typedef CLIB_PACKED (struct { }) dhcpv6_client_mac_t; -#endif /* included_vnet_dhcp_packet_h */ +#endif /* included_vnet_dhcp6_packet_h */ diff --git a/src/vnet/dhcpv6/proxy_error.def b/src/vnet/dhcp/dhcp6_proxy_error.def index 55fa731766c..55fa731766c 100644 --- a/src/vnet/dhcpv6/proxy_error.def +++ b/src/vnet/dhcp/dhcp6_proxy_error.def diff --git a/src/vnet/dhcpv6/proxy_node.c b/src/vnet/dhcp/dhcp6_proxy_node.c index f40798e6c5d..ed44977d76b 100644 --- a/src/vnet/dhcpv6/proxy_node.c +++ b/src/vnet/dhcp/dhcp6_proxy_node.c @@ -1,5 +1,5 @@ /* - * proxy_node.c: dhcpv6 proxy node processing + * dhcp6_proxy_node.c: dhcpv6 proxy node processing * * Copyright (c) 2013 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); @@ -17,15 +17,15 @@ #include <vlib/vlib.h> #include <vnet/pg/pg.h> -#include <vnet/dhcpv6/proxy.h> -#include <vnet/dhcp/proxy.h> +#include <vnet/dhcp/dhcp_proxy.h> +#include <vnet/dhcp/dhcp6_packet.h> #include <vnet/fib/ip6_fib.h> #include <vnet/mfib/mfib_table.h> #include <vnet/mfib/ip6_mfib.h> static char * dhcpv6_proxy_error_strings[] = { #define dhcpv6_proxy_error(n,s) s, -#include "proxy_error.def" +#include <vnet/dhcp/dhcp6_proxy_error.def> #undef dhcpv6_proxy_error }; @@ -51,11 +51,15 @@ typedef struct { u32 original_sw_if_index; } dhcpv6_proxy_trace_t; -vlib_node_registration_t dhcpv6_proxy_to_server_node; -vlib_node_registration_t dhcpv6_proxy_to_client_node; +static vlib_node_registration_t dhcpv6_proxy_to_server_node; +static vlib_node_registration_t dhcpv6_proxy_to_client_node; +/* all DHCP servers address */ +static ip6_address_t all_dhcpv6_server_address; +static ip6_address_t all_dhcpv6_server_relay_agent_address; -u8 * format_dhcpv6_proxy_trace (u8 * s, va_list * args) +static u8 * +format_dhcpv6_proxy_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); @@ -76,7 +80,8 @@ u8 * format_dhcpv6_proxy_trace (u8 * s, va_list * args) return s; } -u8 * format_dhcpv6_proxy_header_with_length (u8 * s, va_list * args) +static u8 * +format_dhcpv6_proxy_header_with_length (u8 * s, va_list * args) { dhcpv6_header_t * h = va_arg (*args, dhcpv6_header_t *); u32 max_header_bytes = va_arg (*args, u32); @@ -111,56 +116,20 @@ ip6_interface_first_global_or_site_address (ip6_main_t * im, u32 sw_if_index) return result; } -static inline void copy_ip6_address (ip6_address_t *dst, ip6_address_t *src) +static inline void copy_ip6_address (ip6_address_t *dst, + ip6_address_t *src) { - dst->as_u64[0] = src->as_u64[0]; dst->as_u64[1] = src->as_u64[1]; } -static inline dhcpv6_vss_info * -dhcpv6_get_vss_info (dhcpv6_proxy_main_t *dm, - u32 rx_fib_index) -{ - dhcpv6_vss_info *v; - - if (vec_len(dm->vss_index_by_rx_fib_index) <= rx_fib_index || - dm->vss_index_by_rx_fib_index[rx_fib_index] == ~0) - { - v = NULL; - } - else - { - v = pool_elt_at_index (dm->vss, - dm->vss_index_by_rx_fib_index[rx_fib_index]); - } - - return (v); -} - -static inline dhcpv6_server_t * -dhcpv6_get_server (dhcpv6_proxy_main_t *dm, - u32 rx_fib_index) -{ - dhcpv6_server_t *s = NULL; - - if (vec_len(dm->dhcp6_server_index_by_rx_fib_index) > rx_fib_index && - dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] != ~0) - { - s = pool_elt_at_index (dm->dhcp6_servers, - dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index]); - } - - return (s); -} - static uword dhcpv6_proxy_to_server_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) + vlib_node_runtime_t * node, + vlib_frame_t * from_frame) { u32 n_left_from, next_index, * from, * to_next; - dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main; + dhcp_proxy_main_t * dpm = &dhcp_proxy_main; from = vlib_frame_vector_args (from_frame); n_left_from = from_frame->n_vectors; u32 pkts_to_server=0, pkts_to_client=0, pkts_no_server=0; @@ -171,7 +140,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, ip6_main_t * im = &ip6_main; ip6_address_t * src; int bogus_length; - dhcpv6_server_t * server; + dhcp_server_t * server; u32 rx_fib_idx = 0, server_fib_idx = 0; next_index = node->cached_next_index; @@ -206,7 +175,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, ethernet_header_t * e_h0; u8 client_src_mac[6]; vlib_buffer_free_list_t *fl; - dhcpv6_vss_info *vss; + dhcp_vss_t *vss; bi0 = from[0]; to_next[0] = bi0; @@ -258,7 +227,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, /* Send to DHCPV6 server via the configured FIB */ rx_sw_if_index = sw_if_index = vnet_buffer(b0)->sw_if_index[VLIB_RX]; rx_fib_idx = im->fib_index_by_sw_if_index [rx_sw_if_index]; - server = dhcpv6_get_server(dpm, rx_fib_idx); + server = dhcp_get_server(dpm, rx_fib_idx, FIB_PROTOCOL_IP6); if (PREDICT_FALSE (NULL == server)) { @@ -268,7 +237,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, goto do_trace; } - server_fib_idx = server->server_fib6_index; + server_fib_idx = server->server_fib_index; vnet_buffer(b0)->sw_if_index[VLIB_TX] = server_fib_idx; @@ -368,8 +337,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, u1->length += sizeof(*cmac); } - //TODO: Revisit if hash makes sense here - vss = dhcpv6_get_vss_info(dpm, rx_fib_idx); + vss = dhcp_get_vss_info(dpm, rx_fib_idx, FIB_PROTOCOL_IP6); if (NULL != vss) { vss1 = (dhcpv6_vss_t *) (((uword) ip1) + b0->current_length); @@ -378,13 +346,13 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, sizeof(vss1->opt)); vss1->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_VSS); vss1->data[0] = 1; // type - vss1->data[1] = vss->vpn_id.oui >>16 & 0xff; - vss1->data[2] = vss->vpn_id.oui >>8 & 0xff; - vss1->data[3] = vss->vpn_id.oui & 0xff; - vss1->data[4] = vss->vpn_id.fib_id >> 24 & 0xff; - vss1->data[5] = vss->vpn_id.fib_id >> 16 & 0xff; - vss1->data[6] = vss->vpn_id.fib_id >> 8 & 0xff; - vss1->data[7] = vss->vpn_id.fib_id & 0xff; + vss1->data[1] = vss->oui >>16 & 0xff; + vss1->data[2] = vss->oui >>8 & 0xff; + vss1->data[3] = vss->oui & 0xff; + vss1->data[4] = vss->fib_id >> 24 & 0xff; + vss1->data[5] = vss->fib_id >> 16 & 0xff; + vss1->data[6] = vss->fib_id >> 8 & 0xff; + vss1->data[7] = vss->fib_id & 0xff; u1->length += sizeof(*vss1); } @@ -403,16 +371,18 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, ip1->payload_length = u1->length; ip1->protocol = PROTO_UDP; ip1->hop_limit = HOP_COUNT_LIMIT; - src = (server->dhcp6_server.as_u64[0] || server->dhcp6_server.as_u64[1]) ? - &server->dhcp6_server : &dpm->all_dhcpv6_server_address; + src = (server->dhcp_server.ip6.as_u64[0] || + server->dhcp_server.ip6.as_u64[1]) ? + &server->dhcp_server.ip6 : &all_dhcpv6_server_address; copy_ip6_address(&ip1->dst_address, src); ia0 = ip6_interface_first_global_or_site_address (&ip6_main, vnet_buffer(b0)->sw_if_index[VLIB_RX]); - src = (server->dhcp6_src_address.as_u64[0] || server->dhcp6_src_address.as_u64[1]) ? - &server->dhcp6_src_address : ia0; + src = (server->dhcp_src_address.ip6.as_u64[0] || + server->dhcp_src_address.ip6.as_u64[1]) ? + &server->dhcp_src_address.ip6 : ia0; if (ia0 == 0) { error0 = DHCPV6_PROXY_ERROR_NO_SRC_ADDRESS; @@ -440,7 +410,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, tr->original_sw_if_index = rx_sw_if_index; tr->sw_if_index = sw_if_index; if (DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP == next0) - copy_ip6_address((ip6_address_t *)&tr->packet_data[0], &server->dhcp6_server); + copy_ip6_address((ip6_address_t *)&tr->packet_data[0], &server->dhcp_server.ip6); } do_enqueue: @@ -473,7 +443,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, return from_frame->n_vectors; } -VLIB_REGISTER_NODE (dhcpv6_proxy_to_server_node) = { +VLIB_REGISTER_NODE (dhcpv6_proxy_to_server_node, static) = { .function = dhcpv6_proxy_to_server_input, .name = "dhcpv6-proxy-to-server", /* Takes a vector of packets. */ @@ -504,8 +474,8 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm, u32 n_left_from, * from; ethernet_main_t *em = ethernet_get_main (vm); - dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main; - dhcpv6_server_t * server; + dhcp_proxy_main_t * dm = &dhcp_proxy_main; + dhcp_server_t * server; vnet_main_t * vnm = vnet_get_main(); int bogus_length; @@ -618,7 +588,7 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm, vlib_buffer_advance (b0, sizeof(*r0)); client_fib_idx = im->fib_index_by_sw_if_index[sw_if_index]; - server = dhcpv6_get_server(dm, client_fib_idx); + server = dhcp_get_server(dm, client_fib_idx, FIB_PROTOCOL_IP6); if (NULL == server) { @@ -629,9 +599,9 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm, server_fib_idx = im->fib_index_by_sw_if_index [vnet_buffer(b0)->sw_if_index[VLIB_RX]]; - if (server_fib_idx != server->server_fib6_index || - ip0->src_address.as_u64[0] != server->dhcp6_server.as_u64[0] || - ip0->src_address.as_u64[1] != server->dhcp6_server.as_u64[1]) + if (server_fib_idx != server->server_fib_index || + ip0->src_address.as_u64[0] != server->dhcp_server.ip6.as_u64[0] || + ip0->src_address.as_u64[1] != server->dhcp_server.ip6.as_u64[1]) { //drop packet if not from server with configured address or FIB error0 = DHCPV6_PROXY_ERROR_BAD_SVR_FIB_OR_ADDRESS; @@ -731,7 +701,7 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm, } -VLIB_REGISTER_NODE (dhcpv6_proxy_to_client_node) = { +VLIB_REGISTER_NODE (dhcpv6_proxy_to_client_node, static) = { .function = dhcpv6_proxy_to_client_input, .name = "dhcpv6-proxy-to-client", /* Takes a vector of packets. */ @@ -746,26 +716,22 @@ VLIB_REGISTER_NODE (dhcpv6_proxy_to_client_node) = { #endif }; -clib_error_t * dhcpv6_proxy_init (vlib_main_t * vm) +static clib_error_t * +dhcp6_proxy_init (vlib_main_t * vm) { - dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main; + dhcp_proxy_main_t * dm = &dhcp_proxy_main; vlib_node_t * error_drop_node; - dhcpv6_server_t * server; - dm->vlib_main = vm; - dm->vnet_main = vnet_get_main(); error_drop_node = vlib_get_node_by_name (vm, (u8 *) "error-drop"); dm->error_drop_node_index = error_drop_node->index; - dm->vss_index_by_rx_fib_index = NULL; - /* RFC says this is the dhcpv6 server address */ - dm->all_dhcpv6_server_address.as_u64[0] = clib_host_to_net_u64 (0xFF05000000000000); - dm->all_dhcpv6_server_address.as_u64[1] = clib_host_to_net_u64 (0x00010003); + all_dhcpv6_server_address.as_u64[0] = clib_host_to_net_u64 (0xFF05000000000000); + all_dhcpv6_server_address.as_u64[1] = clib_host_to_net_u64 (0x00010003); /* RFC says this is the server and agent address */ - dm->all_dhcpv6_server_relay_agent_address.as_u64[0] = clib_host_to_net_u64 (0xFF02000000000000); - dm->all_dhcpv6_server_relay_agent_address.as_u64[1] = clib_host_to_net_u64 (0x00010002); + all_dhcpv6_server_relay_agent_address.as_u64[0] = clib_host_to_net_u64 (0xFF02000000000000); + all_dhcpv6_server_relay_agent_address.as_u64[1] = clib_host_to_net_u64 (0x00010002); udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_client, dhcpv6_proxy_to_client_node.index, 0 /* is_ip6 */); @@ -773,144 +739,84 @@ clib_error_t * dhcpv6_proxy_init (vlib_main_t * vm) udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_server, dhcpv6_proxy_to_server_node.index, 0 /* is_ip6 */); - /* Create the default server, don't mark it valid */ - pool_get (dm->dhcp6_servers, server); - memset (server, 0, sizeof (*server)); - return 0; } -VLIB_INIT_FUNCTION (dhcpv6_proxy_init); +VLIB_INIT_FUNCTION (dhcp6_proxy_init); -int dhcpv6_proxy_set_server (ip6_address_t *addr, - ip6_address_t *src_address, - u32 rx_fib_id, - u32 server_fib_id, - int is_del) +int +dhcp6_proxy_set_server (ip46_address_t *addr, + ip46_address_t *src_addr, + u32 rx_table_id, + u32 server_table_id, + int is_del) { - dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main; - dhcpv6_server_t * server = 0; u32 rx_fib_index = 0; int rc = 0; - rx_fib_index = ip6_mfib_table_find_or_create_and_lock(rx_fib_id); - const mfib_prefix_t all_dhcp_servers = { .fp_len = 128, .fp_proto = FIB_PROTOCOL_IP6, .fp_grp_addr = { - .ip6 = dm->all_dhcpv6_server_relay_agent_address, + .ip6 = all_dhcpv6_server_relay_agent_address, } }; - if (is_del) - { - server = dhcpv6_get_server(dm, rx_fib_index); - - if (NULL == server) - { - rc = VNET_API_ERROR_NO_SUCH_ENTRY; - goto out; - } + if (ip46_address_is_zero(addr)) + return VNET_API_ERROR_INVALID_DST_ADDRESS; + + if (ip46_address_is_zero(src_addr)) + return VNET_API_ERROR_INVALID_SRC_ADDRESS; - /* - * release the locks held on the server fib and rx mfib - */ - mfib_table_entry_delete(rx_fib_index, - &all_dhcp_servers, - MFIB_SOURCE_DHCP); - mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6); - fib_table_unlock(server->server_fib6_index, FIB_PROTOCOL_IP6); + rx_fib_index = mfib_table_find_or_create_and_lock(FIB_PROTOCOL_IP6, + rx_table_id); - dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] = ~0; + if (is_del) + { + rc = dhcp_proxy_server_del (FIB_PROTOCOL_IP6, rx_fib_index); - memset (server, 0, sizeof (*server)); - pool_put (dm->dhcp6_servers, server); + if (0 == rc) + { + mfib_table_entry_delete(rx_fib_index, + &all_dhcp_servers, + MFIB_SOURCE_DHCP); + mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6); + } } else { - if (addr->as_u64[0] == 0 && - addr->as_u64[1] == 0 ) - { - rc = VNET_API_ERROR_INVALID_DST_ADDRESS; - goto out; - } - if (src_address->as_u64[0] == 0 && - src_address->as_u64[1] == 0) - { - rc = VNET_API_ERROR_INVALID_SRC_ADDRESS; - goto out; - } - - server = dhcpv6_get_server(dm, rx_fib_index); - - if (NULL != server) - { - /* modify of an existing entry */ - ip6_fib_t *fib; - - fib = ip6_fib_get(server->server_fib6_index); - - if (fib->table_id != server_fib_id) - { - /* swap tables */ - fib_table_unlock(server->server_fib6_index, FIB_PROTOCOL_IP6); - server->server_fib6_index = - ip6_fib_table_find_or_create_and_lock(server_fib_id); - } - } - else - { - /* Allocate a new server */ - pool_get (dm->dhcp6_servers, server); - - vec_validate_init_empty (dm->dhcp6_server_index_by_rx_fib_index, - rx_fib_index, ~0); - dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] = - server - dm->dhcp6_servers; - - server->server_fib6_index = - ip6_fib_table_find_or_create_and_lock(server_fib_id); - mfib_table_lock(rx_fib_index, FIB_PROTOCOL_IP6); - - const mfib_prefix_t all_dhcp_servers = { - .fp_len = 128, - .fp_proto = FIB_PROTOCOL_IP6, - .fp_grp_addr = { - .ip6 = dm->all_dhcpv6_server_relay_agent_address, - } - }; - const fib_route_path_t path_for_us = { - .frp_proto = FIB_PROTOCOL_IP6, - .frp_addr = zero_addr, - .frp_sw_if_index = 0xffffffff, - .frp_fib_index = ~0, - .frp_weight = 0, - .frp_flags = FIB_ROUTE_PATH_LOCAL, - }; - mfib_table_entry_path_update(rx_fib_index, - &all_dhcp_servers, - MFIB_SOURCE_DHCP, - &path_for_us, - MFIB_ITF_FLAG_FORWARD); - /* - * Each interface that is enabled in this table, needs to be added - * as an accepting interface, but this is not easily doable in VPP. - * So we cheat. Add a flag to the entry that indicates accept form - * any interface. - * We will still only accept on v6 enabled interfaces, since the - * input feature ensures this. - */ - mfib_table_entry_update(rx_fib_index, - &all_dhcp_servers, - MFIB_SOURCE_DHCP, - MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF); - } - copy_ip6_address(&server->dhcp6_server, addr); - copy_ip6_address(&server->dhcp6_src_address, src_address); - } + const fib_route_path_t path_for_us = { + .frp_proto = FIB_PROTOCOL_IP6, + .frp_addr = zero_addr, + .frp_sw_if_index = 0xffffffff, + .frp_fib_index = ~0, + .frp_weight = 0, + .frp_flags = FIB_ROUTE_PATH_LOCAL, + }; + if (dhcp_proxy_server_add (FIB_PROTOCOL_IP6, addr, src_addr, + rx_fib_index, server_table_id)) + { + mfib_table_entry_path_update(rx_fib_index, + &all_dhcp_servers, + MFIB_SOURCE_DHCP, + &path_for_us, + MFIB_ITF_FLAG_FORWARD); + /* + * Each interface that is enabled in this table, needs to be added + * as an accepting interface, but this is not easily doable in VPP. + * So we cheat. Add a flag to the entry that indicates accept form + * any interface. + * We will still only accept on v6 enabled interfaces, since the + * input feature ensures this. + */ + mfib_table_entry_update(rx_fib_index, + &all_dhcp_servers, + MFIB_SOURCE_DHCP, + MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF); + mfib_table_lock(rx_fib_index, FIB_PROTOCOL_IP6); + } + } -out: mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6); return (rc); @@ -921,22 +827,22 @@ dhcpv6_proxy_set_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { - ip6_address_t addr, src_addr; + ip46_address_t addr, src_addr; int set_server = 0, set_src_address = 0; - u32 rx_fib_id = 0, server_fib_id = 0; + u32 rx_table_id = 0, server_table_id = 0; int is_del = 0; while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "server %U", - unformat_ip6_address, &addr)) + unformat_ip6_address, &addr.ip6)) set_server = 1; else if (unformat(input, "src-address %U", - unformat_ip6_address, &src_addr)) + unformat_ip6_address, &src_addr.ip6)) set_src_address =1; - else if (unformat (input, "server-fib-id %d", &server_fib_id)) + else if (unformat (input, "server-fib-id %d", &server_table_id)) ; - else if (unformat (input, "rx-fib-id %d", &rx_fib_id)) + else if (unformat (input, "rx-fib-id %d", &rx_table_id)) ; else if (unformat (input, "delete") || unformat (input, "del")) @@ -949,8 +855,8 @@ dhcpv6_proxy_set_command_fn (vlib_main_t * vm, { int rv; - rv = dhcpv6_proxy_set_server (&addr, &src_addr, rx_fib_id, - server_fib_id, is_del); + rv = dhcp6_proxy_set_server (&addr, &src_addr, rx_table_id, + server_table_id, is_del); //TODO: Complete the errors switch (rv) @@ -958,8 +864,15 @@ dhcpv6_proxy_set_command_fn (vlib_main_t * vm, case 0: return 0; - case -1: - return clib_error_return (0, "FIB id %d does not exist", server_fib_id); + case VNET_API_ERROR_INVALID_DST_ADDRESS: + return clib_error_return (0, "Invalid server address"); + + case VNET_API_ERROR_INVALID_SRC_ADDRESS: + return clib_error_return (0, "Invalid src address"); + + case VNET_API_ERROR_NO_SUCH_ENTRY: + return clib_error_return + (0, "Fib id %d: no per-fib DHCP server configured", rx_table_id); default: return clib_error_return (0, "BUG: rv %d", rv); @@ -977,62 +890,51 @@ VLIB_CLI_COMMAND (dhcpv6_proxy_set_command, static) = { .function = dhcpv6_proxy_set_command_fn, }; -u8 * format_dhcpv6_proxy_server (u8 * s, va_list * args) +static u8 * +format_dhcp6_proxy_server (u8 * s, va_list * args) { - dhcpv6_proxy_main_t * dm = va_arg (*args, dhcpv6_proxy_main_t *); - dhcpv6_server_t * server = va_arg (*args, dhcpv6_server_t *); - u32 rx_fib_index = va_arg (*args, u32); + dhcp_server_t * server = va_arg (*args, dhcp_server_t *); ip6_fib_t * rx_fib, * server_fib; - u32 server_fib_id = (u32)~0, rx_fib_id = ~0; - if (dm == 0) + if (NULL == server) { s = format (s, "%=40s%=40s%=14s%=14s", "Server Address", "Source Address", "Server FIB", "RX FIB"); return s; } - server_fib = ip6_fib_get(server->server_fib6_index); - if (server_fib) - server_fib_id= server_fib->table_id; - - rx_fib= ip6_fib_get(rx_fib_index); + server_fib = ip6_fib_get(server->server_fib_index); + rx_fib = ip6_fib_get(server->rx_fib_index); - if (rx_fib) - rx_fib_id = rx_fib->table_id; s = format (s, "%=40U%=40U%=14u%=14u", - format_ip6_address, &server->dhcp6_server, - format_ip6_address, &server->dhcp6_src_address, - server_fib_id, rx_fib_id); + format_ip46_address, &server->dhcp_server, IP46_TYPE_ANY, + format_ip46_address, &server->dhcp_src_address, IP46_TYPE_ANY, + server_fib->table_id, rx_fib->table_id); return s; } +static int +dhcp6_proxy_show_walk (dhcp_server_t *server, + void *ctx) +{ + vlib_main_t * vm = ctx; + + vlib_cli_output (vm, "%U", format_dhcp6_proxy_server, server); + + return (1); +} + static clib_error_t * dhcpv6_proxy_show_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { - dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main; - int i; - u32 server_index; - dhcpv6_server_t * server; - - vlib_cli_output (vm, "%U", format_dhcpv6_proxy_server, 0 /* header line */, - 0, 0); - vec_foreach_index (i, dpm->dhcp6_server_index_by_rx_fib_index) - { - server_index = dpm->dhcp6_server_index_by_rx_fib_index[i]; - if (~0 == server_index) - continue; + vlib_cli_output (vm, "%U", format_dhcp6_proxy_server, NULL /* header line */); - server = pool_elt_at_index (dpm->dhcp6_servers, server_index); - - vlib_cli_output (vm, "%U", format_dhcpv6_proxy_server, dpm, - server, i); - } + dhcp_proxy_walk(FIB_PROTOCOL_IP6, dhcp6_proxy_show_walk, vm); - return 0; + return (NULL); } VLIB_CLI_COMMAND (dhcpv6_proxy_show_command, static) = { @@ -1041,111 +943,10 @@ VLIB_CLI_COMMAND (dhcpv6_proxy_show_command, static) = { .function = dhcpv6_proxy_show_command_fn, }; -void -dhcpv6_proxy_dump (void *opaque, - u32 context) -{ - dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main; - ip6_fib_t *s_fib, *r_fib; - dhcpv6_server_t * server; - u32 server_index, i; - dhcpv6_vss_info *v; - - vec_foreach_index (i, dpm->dhcp6_server_index_by_rx_fib_index) - { - server_index = dpm->dhcp6_server_index_by_rx_fib_index[i]; - if (~0 == server_index) - continue; - - server = pool_elt_at_index (dpm->dhcp6_servers, server_index); - v = dhcpv6_get_vss_info(dpm, i); - - ip46_address_t src_addr = { - .ip6 = server->dhcp6_src_address, - }; - ip46_address_t server_addr = { - .ip6 = server->dhcp6_server, - }; - - s_fib = ip6_fib_get(server->server_fib6_index); - r_fib = ip6_fib_get(i); - - dhcp_send_details(opaque, - context, - &server_addr, - &src_addr, - s_fib->table_id, - r_fib->table_id, - (v ? v->vpn_id.fib_id : 0), - (v ? v->vpn_id.oui : 0)); - } -} - -int dhcpv6_proxy_set_vss(u32 tbl_id, - u32 oui, - u32 fib_id, - int is_del) -{ - dhcpv6_proxy_main_t *dm = &dhcpv6_proxy_main; - dhcpv6_vss_info *v = NULL; - u32 rx_fib_index; - int rc = 0; - - rx_fib_index = ip6_fib_table_find_or_create_and_lock(tbl_id); - v = dhcpv6_get_vss_info(dm, rx_fib_index); - - if (NULL != v) - { - if (is_del) - { - /* release the lock held on the table when the VSS - * info was created */ - fib_table_unlock (rx_fib_index, - FIB_PROTOCOL_IP6); - - pool_put (dm->vss, v); - dm->vss_index_by_rx_fib_index[rx_fib_index] = ~0; - } - else - { - /* this is a modify */ - v->vpn_id.fib_id = fib_id; - v->vpn_id.oui = oui; - } - } - else - { - if (is_del) - rc = VNET_API_ERROR_NO_SUCH_ENTRY; - else - { - /* create a new entry */ - vec_validate_init_empty(dm->vss_index_by_rx_fib_index, - rx_fib_index, ~0); - - /* hold a lock on the table whilst the VSS info exist */ - fib_table_lock (rx_fib_index, - FIB_PROTOCOL_IP6); - - pool_get (dm->vss, v); - v->vpn_id.fib_id = fib_id; - v->vpn_id.oui = oui; - dm->vss_index_by_rx_fib_index[rx_fib_index] = v - dm->vss; - } - } - - /* Release the lock taken during the create_or_lock at the start */ - fib_table_unlock (rx_fib_index, - FIB_PROTOCOL_IP6); - - return (rc); -} - - static clib_error_t * dhcpv6_vss_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, + vlib_cli_command_t * cmd) { int is_del = 0, got_new_vss=0; u32 oui=0; @@ -1172,7 +973,7 @@ dhcpv6_vss_command_fn (vlib_main_t * vm, { int rv; - rv = dhcpv6_proxy_set_vss(tbl_id, oui, fib_id, is_del); + rv = dhcp_proxy_set_vss(FIB_PROTOCOL_IP6, tbl_id, oui, fib_id, is_del); switch (rv) { case 0: @@ -1208,24 +1009,9 @@ dhcpv6_vss_show_command_fn (vlib_main_t * vm, vlib_cli_command_t * cmd) { - dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main; - dhcpv6_vss_info *v; - ip6_fib_t *fib; - u32 *fib_index; + dhcp_vss_walk(FIB_PROTOCOL_IP6, dhcp_vss_show_walk, vm); - vlib_cli_output (vm, "%=6s%=6s%=12s","Table", "OUI", "VPN ID"); - pool_foreach (fib_index, dm->vss_index_by_rx_fib_index, - ({ - fib = ip6_fib_get (*fib_index); - v = pool_elt_at_index (dm->vss, *fib_index); - - vlib_cli_output (vm, "%=6d%=6d%=12d", - fib->table_id, - v->vpn_id.oui, - v->vpn_id.fib_id); - })); - - return 0; + return (NULL); } VLIB_CLI_COMMAND (dhcpv6_proxy_vss_show_command, static) = { @@ -1240,17 +1026,16 @@ dhcpv6_link_address_show_command_fn (vlib_main_t * vm, vlib_cli_command_t * cmd) { - dhcpv6_proxy_main_t *dm = &dhcpv6_proxy_main; vnet_main_t *vnm = vnet_get_main(); u32 sw_if_index0=0, sw_if_index; - ip6_address_t *ia0; vnet_sw_interface_t *swif; + ip6_address_t *ia0; while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT) { if (unformat(input, "%U", - unformat_vnet_sw_interface, dm->vnet_main, &sw_if_index0)) + unformat_vnet_sw_interface, vnm, &sw_if_index0)) { swif = vnet_get_sw_interface (vnm, sw_if_index0); sw_if_index = (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) ? @@ -1261,11 +1046,11 @@ dhcpv6_link_address_show_command_fn (vlib_main_t * vm, vlib_cli_output (vm, "%=20s%=48s", "interface", "link-address"); vlib_cli_output (vm, "%=20U%=48U", - format_vnet_sw_if_index_name, dm->vnet_main, sw_if_index0, + format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, ia0); } else vlib_cli_output (vm, "%=34s%=20U", "No IPv6 address configured on", - format_vnet_sw_if_index_name, dm->vnet_main, sw_if_index); + format_vnet_sw_if_index_name, vnm, sw_if_index); } else break; } diff --git a/src/vnet/dhcp/dhcp_api.c b/src/vnet/dhcp/dhcp_api.c index ce9039b7557..bdf02cae799 100644 --- a/src/vnet/dhcp/dhcp_api.c +++ b/src/vnet/dhcp/dhcp_api.c @@ -22,9 +22,8 @@ #include <vnet/interface.h> #include <vnet/api_errno.h> -#include <vnet/dhcp/proxy.h> +#include <vnet/dhcp/dhcp_proxy.h> #include <vnet/dhcp/client.h> -#include <vnet/dhcpv6/proxy.h> #include <vnet/vnet_msg_enum.h> @@ -51,52 +50,19 @@ _(DHCP_PROXY_DETAILS,dhcp_proxy_details) \ _(DHCP_PROXY_SET_VSS,dhcp_proxy_set_vss) \ _(DHCP_CLIENT_CONFIG, dhcp_client_config) -static void -dhcpv4_proxy_config (vl_api_dhcp_proxy_config_t * mp) -{ - vl_api_dhcp_proxy_config_reply_t *rmp; - int rv; - - rv = dhcp_proxy_set_server ((ip4_address_t *) (&mp->dhcp_server), - (ip4_address_t *) (&mp->dhcp_src_address), - (u32) ntohl (mp->rx_vrf_id), - (u32) ntohl (mp->server_vrf_id), - (int) (mp->is_add == 0)); - - REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY); -} - - -static void -dhcpv6_proxy_config (vl_api_dhcp_proxy_config_t * mp) -{ - vl_api_dhcp_proxy_config_reply_t *rmp; - int rv = -1; - - rv = dhcpv6_proxy_set_server ((ip6_address_t *) (&mp->dhcp_server), - (ip6_address_t *) (&mp->dhcp_src_address), - (u32) ntohl (mp->rx_vrf_id), - (u32) ntohl (mp->server_vrf_id), - (int) (mp->is_add == 0)); - - REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY); -} - static void vl_api_dhcp_proxy_set_vss_t_handler (vl_api_dhcp_proxy_set_vss_t * mp) { vl_api_dhcp_proxy_set_vss_reply_t *rmp; int rv; - if (!mp->is_ipv6) - rv = dhcp_proxy_set_option82_vss (ntohl (mp->tbl_id), - ntohl (mp->oui), - ntohl (mp->fib_id), - (int) mp->is_add == 0); - else - rv = dhcpv6_proxy_set_vss (ntohl (mp->tbl_id), - ntohl (mp->oui), - ntohl (mp->fib_id), (int) mp->is_add == 0); + + rv = dhcp_proxy_set_vss ((mp->is_ipv6 ? + FIB_PROTOCOL_IP6 : + FIB_PROTOCOL_IP4), + ntohl (mp->tbl_id), + ntohl (mp->oui), + ntohl (mp->fib_id), (int) mp->is_add == 0); REPLY_MACRO (VL_API_DHCP_PROXY_SET_VSS_REPLY); } @@ -105,10 +71,38 @@ vl_api_dhcp_proxy_set_vss_t_handler (vl_api_dhcp_proxy_set_vss_t * mp) static void vl_api_dhcp_proxy_config_t_handler (vl_api_dhcp_proxy_config_t * mp) { - if (mp->is_ipv6 == 0) - dhcpv4_proxy_config (mp); + vl_api_dhcp_proxy_set_vss_reply_t *rmp; + ip46_address_t src, server; + int rv = -1; + + if (mp->is_ipv6) + { + clib_memcpy (&src.ip6, mp->dhcp_src_address, sizeof (src.ip6)); + clib_memcpy (&server.ip6, mp->dhcp_server, sizeof (server.ip6)); + + rv = dhcp6_proxy_set_server (&server, + &src, + (u32) ntohl (mp->rx_vrf_id), + (u32) ntohl (mp->server_vrf_id), + (int) (mp->is_add == 0)); + } else - dhcpv6_proxy_config (mp); + { + ip46_address_reset (&src); + ip46_address_reset (&server); + + clib_memcpy (&src.ip4, mp->dhcp_src_address, sizeof (src.ip4)); + clib_memcpy (&server.ip4, mp->dhcp_server, sizeof (server.ip4)); + + rv = dhcp4_proxy_set_server (&server, + &src, + (u32) ntohl (mp->rx_vrf_id), + (u32) ntohl (mp->server_vrf_id), + (int) (mp->is_add == 0)); + } + + + REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY); } static void @@ -120,14 +114,13 @@ vl_api_dhcp_proxy_dump_t_handler (vl_api_dhcp_proxy_dump_t * mp) if (q == 0) return; - if (mp->is_ip6 == 0) - dhcp_proxy_dump (q, mp->context); - else - dhcpv6_proxy_dump (q, mp->context); + dhcp_proxy_dump ((mp->is_ip6 == 0 ? + FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4), q, mp->context); } void -dhcp_send_details (void *opaque, +dhcp_send_details (fib_protocol_t proto, + void *opaque, u32 context, const ip46_address_t * server, const ip46_address_t * src, @@ -149,7 +142,7 @@ dhcp_send_details (void *opaque, mp->vss_oui = htonl (vss_oui); mp->vss_fib_id = htonl (vss_fib_id); - mp->is_ipv6 = !ip46_address_is_ip4 (server); + mp->is_ipv6 = (proto == FIB_PROTOCOL_IP6); if (mp->is_ipv6) { diff --git a/src/vnet/dhcp/dhcp_proxy.c b/src/vnet/dhcp/dhcp_proxy.c new file mode 100644 index 00000000000..da2deea65f6 --- /dev/null +++ b/src/vnet/dhcp/dhcp_proxy.c @@ -0,0 +1,275 @@ +/* + * proxy_node.c: common dhcp v4 and v6 proxy node processing + * + * Copyright (c) 2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/dhcp/dhcp_proxy.h> +#include <vnet/fib/fib_table.h> + +/** + * @brief Shard 4/6 instance of DHCP main + */ +dhcp_proxy_main_t dhcp_proxy_main; + +void +dhcp_proxy_walk (fib_protocol_t proto, + dhcp_proxy_walk_fn_t fn, + void *ctx) +{ + dhcp_proxy_main_t * dpm = &dhcp_proxy_main; + dhcp_server_t * server; + u32 server_index, i; + + vec_foreach_index (i, dpm->dhcp_server_index_by_rx_fib_index[proto]) + { + server_index = dpm->dhcp_server_index_by_rx_fib_index[proto][i]; + if (~0 == server_index) + continue; + + server = pool_elt_at_index (dpm->dhcp_servers[proto], server_index); + + if (!fn(server, ctx)) + break; + } +} + +void +dhcp_vss_walk (fib_protocol_t proto, + dhcp_vss_walk_fn_t fn, + void *ctx) +{ + dhcp_proxy_main_t * dpm = &dhcp_proxy_main; + dhcp_vss_t * vss; + u32 vss_index, i; + fib_table_t *fib; + + + vec_foreach_index (i, dpm->vss_index_by_rx_fib_index[proto]) + { + vss_index = dpm->vss_index_by_rx_fib_index[proto][i]; + if (~0 == vss_index) + continue; + + vss = pool_elt_at_index (dpm->vss[proto], vss_index); + + fib = fib_table_get(i, proto); + + if (!fn(vss, fib->ft_table_id, ctx)) + break; + } +} + +int +dhcp_proxy_server_del (fib_protocol_t proto, + u32 rx_fib_index) +{ + dhcp_proxy_main_t * dpm = &dhcp_proxy_main; + dhcp_server_t * server = 0; + int rc = 0; + + server = dhcp_get_server(dpm, rx_fib_index, proto); + + if (NULL == server) + { + rc = VNET_API_ERROR_NO_SUCH_ENTRY; + } + else + { + /* Use the default server again. */ + dpm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index] = ~0; + + fib_table_unlock (server->server_fib_index, proto); + + pool_put (dpm->dhcp_servers[proto], server); + } + + return (rc); +} + +int +dhcp_proxy_server_add (fib_protocol_t proto, + ip46_address_t *addr, + ip46_address_t *src_address, + u32 rx_fib_index, + u32 server_table_id) +{ + dhcp_proxy_main_t * dpm = &dhcp_proxy_main; + dhcp_server_t * server = 0; + int new = 0; + + server = dhcp_get_server(dpm, rx_fib_index, proto); + + if (NULL == server) + { + vec_validate_init_empty(dpm->dhcp_server_index_by_rx_fib_index[proto], + rx_fib_index, + ~0); + + pool_get (dpm->dhcp_servers[proto], server); + memset (server, 0, sizeof (*server)); + new = 1; + + dpm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index] = + server - dpm->dhcp_servers[proto]; + + server->rx_fib_index = rx_fib_index; + server->server_fib_index = + fib_table_find_or_create_and_lock(proto, server_table_id); + } + else + { + /* modify, may need to swap server FIBs */ + u32 tmp_index; + + tmp_index = fib_table_find(proto, server_table_id); + + if (tmp_index != server->server_fib_index) + { + tmp_index = server->server_fib_index; + + /* certainly swapping if the fib doesn't exist */ + server->server_fib_index = + fib_table_find_or_create_and_lock(proto, server_table_id); + fib_table_unlock (tmp_index, proto); + } + } + + server->dhcp_server = *addr; + server->dhcp_src_address = *src_address; + + return (new); +} + +typedef struct dhcp4_proxy_dump_walk_ctx_t_ +{ + fib_protocol_t proto; + void *opaque; + u32 context; +} dhcp_proxy_dump_walk_cxt_t; + +static int +dhcp_proxy_dump_walk (dhcp_server_t *server, + void *arg) +{ + dhcp_proxy_dump_walk_cxt_t *ctx = arg; + fib_table_t *s_fib, *r_fib; + dhcp_vss_t *v; + + v = dhcp_get_vss_info(&dhcp_proxy_main, + server->rx_fib_index, + ctx->proto); + + s_fib = fib_table_get(server->server_fib_index, ctx->proto); + r_fib = fib_table_get(server->rx_fib_index, ctx->proto); + + dhcp_send_details(ctx->proto, + ctx->opaque, + ctx->context, + &server->dhcp_server, + &server->dhcp_src_address, + s_fib->ft_table_id, + r_fib->ft_table_id, + (v ? v->fib_id : 0), + (v ? v->oui : 0)); + + return (1); +} + +void +dhcp_proxy_dump (fib_protocol_t proto, + void *opaque, + u32 context) +{ + dhcp_proxy_dump_walk_cxt_t ctx = { + .proto = proto, + .opaque = opaque, + .context = context, + }; + dhcp_proxy_walk(proto, dhcp_proxy_dump_walk, &ctx); +} + +int +dhcp_vss_show_walk (dhcp_vss_t *vss, + u32 rx_table_id, + void *ctx) +{ + vlib_main_t * vm = ctx; + + vlib_cli_output (vm, "%=6d%=6d%=12d", + rx_table_id, + vss->oui, + vss->fib_id); + + return (1); +} + +int dhcp_proxy_set_vss (fib_protocol_t proto, + u32 tbl_id, + u32 oui, + u32 fib_id, + int is_del) +{ + dhcp_proxy_main_t *dm = &dhcp_proxy_main; + dhcp_vss_t *v = NULL; + u32 rx_fib_index; + int rc = 0; + + rx_fib_index = fib_table_find_or_create_and_lock(proto, tbl_id); + v = dhcp_get_vss_info(dm, rx_fib_index, proto); + + if (NULL != v) + { + if (is_del) + { + /* release the lock held on the table when the VSS + * info was created */ + fib_table_unlock (rx_fib_index, proto); + + pool_put (dm->vss[proto], v); + dm->vss_index_by_rx_fib_index[proto][rx_fib_index] = ~0; + } + else + { + /* this is a modify */ + v->fib_id = fib_id; + v->oui = oui; + } + } + else + { + if (is_del) + rc = VNET_API_ERROR_NO_SUCH_ENTRY; + else + { + /* create a new entry */ + vec_validate_init_empty(dm->vss_index_by_rx_fib_index[proto], + rx_fib_index, ~0); + + /* hold a lock on the table whilst the VSS info exist */ + fib_table_lock (rx_fib_index, proto); + + pool_get (dm->vss[proto], v); + v->fib_id = fib_id; + v->oui = oui; + dm->vss_index_by_rx_fib_index[proto][rx_fib_index] = + v - dm->vss[proto]; + } + } + + /* Release the lock taken during the create_or_lock at the start */ + fib_table_unlock (rx_fib_index, proto); + + return (rc); +} diff --git a/src/vnet/dhcp/dhcp_proxy.h b/src/vnet/dhcp/dhcp_proxy.h new file mode 100644 index 00000000000..c0d79c41af6 --- /dev/null +++ b/src/vnet/dhcp/dhcp_proxy.h @@ -0,0 +1,248 @@ +/* + * dhcp_proxy.h: DHCP v4 & v6 proxy common functions/types + * + * Copyright (c) 2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef included_dhcp_proxy_h +#define included_dhcp_proxy_h + +#include <vnet/vnet.h> +#include <vnet/dhcp/dhcp4_packet.h> +#include <vnet/ethernet/ethernet.h> +#include <vnet/ip/ip.h> +#include <vnet/ip/ip4.h> +#include <vnet/ip/ip4_packet.h> +#include <vnet/pg/pg.h> +#include <vnet/ip/format.h> +#include <vnet/ip/udp.h> + +typedef enum { +#define dhcp_proxy_error(n,s) DHCP_PROXY_ERROR_##n, +#include <vnet/dhcp/dhcp4_proxy_error.def> +#undef dhcp_proxy_error + DHCP_PROXY_N_ERROR, +} dhcp_proxy_error_t; + +typedef enum { +#define dhcpv6_proxy_error(n,s) DHCPV6_PROXY_ERROR_##n, +#include <vnet/dhcp/dhcp6_proxy_error.def> +#undef dhcpv6_proxy_error + DHCPV6_PROXY_N_ERROR, +} dhcpv6_proxy_error_t; + + +/** + * @brief The Virtual Sub-net Selection information for a given RX FIB + */ +typedef struct dhcp_vss_t_ { + /** + * @brief ?? RFC doesn't say + */ + u32 oui; + /** + * @brief VPN-ID + */ + u32 fib_id; +} dhcp_vss_t; + +/** + * @brief A DHCP proxy server represenation + */ +typedef struct dhcp_server_t_ { + /** + * @brief The address of the DHCP server to which to relay the client's + * messages + */ + ip46_address_t dhcp_server; + + /** + * @brief The source address to use in relayed messaes + */ + ip46_address_t dhcp_src_address; + + /** + * @brief The FIB index (not the external Table-ID) in which the server + * is reachable. + */ + u32 server_fib_index; + + /** + * @brief The FIB index (not the external Table-ID) in which the client + * is resides. + */ + u32 rx_fib_index; +} dhcp_server_t; + +#define DHCP_N_PROTOS (FIB_PROTOCOL_IP6 + 1) + +/** + * @brief Collection of global DHCP proxy data + */ +typedef struct { + /* Pool of DHCP servers */ + dhcp_server_t *dhcp_servers[DHCP_N_PROTOS]; + + /* Pool of selected DHCP server. Zero is the default server */ + u32 * dhcp_server_index_by_rx_fib_index[DHCP_N_PROTOS]; + + /* to drop pkts in server-to-client direction */ + u32 error_drop_node_index; + + dhcp_vss_t *vss[DHCP_N_PROTOS]; + + /* hash lookup specific vrf_id -> option 82 vss suboption */ + u32 *vss_index_by_rx_fib_index[DHCP_N_PROTOS]; + +} dhcp_proxy_main_t; + +extern dhcp_proxy_main_t dhcp_proxy_main; + +/** + * @brief Send the details of a proxy session to the API client during a dump + */ +void dhcp_send_details (fib_protocol_t proto, + void *opaque, + u32 context, + const ip46_address_t *server, + const ip46_address_t *src, + u32 server_fib_id, + u32 rx_fib_id, + u32 vss_fib_id, + u32 vss_oui); + +/** + * @brief Show (on CLI) a VSS config during a show walk + */ +int dhcp_vss_show_walk (dhcp_vss_t *vss, + u32 rx_table_id, + void *ctx); + +/** + * @brief Configure/set a new VSS info + */ +int dhcp_proxy_set_vss(fib_protocol_t proto, + u32 vrf_id, + u32 oui, + u32 fib_id, + int is_del); + +/** + * @brief Dump the proxy configs to the API + */ +void dhcp_proxy_dump(fib_protocol_t proto, + void *opaque, + u32 context); + +/** + * @brief Add a new DHCP proxy server configuration. + * @return 1 is the config is new, + * 0 otherwise (implying a modify of an existing) + */ +int dhcp_proxy_server_add(fib_protocol_t proto, + ip46_address_t *addr, + ip46_address_t *src_address, + u32 rx_fib_iindex, + u32 server_table_id); + +/** + * @brief Delete a DHCP proxy config + * @return 0 is deleted, otherwise an error code + */ +int dhcp_proxy_server_del(fib_protocol_t proto, + u32 rx_fib_index); + +/** + * @brief Callback function invoked for each DHCP proxy entry + * return 0 to break the walk, non-zero otherwise. + */ +typedef int (*dhcp_proxy_walk_fn_t)(dhcp_server_t *server, + void *ctx); + +/** + * @brief Walk/Visit each DHCP proxy server + */ +void dhcp_proxy_walk(fib_protocol_t proto, + dhcp_proxy_walk_fn_t fn, + void *ctx); + +/** + * @brief Callback function invoked for each DHCP VSS entry + * return 0 to break the walk, non-zero otherwise. + */ +typedef int (*dhcp_vss_walk_fn_t)(dhcp_vss_t *server, + u32 rx_table_id, + void *ctx); + +/** + * @brief Walk/Visit each DHCP proxy VSS + */ +void dhcp_vss_walk(fib_protocol_t proto, + dhcp_vss_walk_fn_t fn, + void *ctx); + +/** + * @brief Get the VSS data for the FIB index + */ +static inline dhcp_vss_t * +dhcp_get_vss_info (dhcp_proxy_main_t *dm, + u32 rx_fib_index, + fib_protocol_t proto) +{ + dhcp_vss_t *v = NULL; + + if (vec_len(dm->vss_index_by_rx_fib_index[proto]) > rx_fib_index && + dm->vss_index_by_rx_fib_index[proto][rx_fib_index] != ~0) + { + v = pool_elt_at_index ( + dm->vss[proto], + dm->vss_index_by_rx_fib_index[proto][rx_fib_index]); + } + + return (v); +} + +/** + * @brief Get the DHCP proxy server data for the FIB index + */ +static inline dhcp_server_t * +dhcp_get_server (dhcp_proxy_main_t *dm, + u32 rx_fib_index, + fib_protocol_t proto) +{ + dhcp_server_t *s = NULL; + + if (vec_len(dm->dhcp_server_index_by_rx_fib_index[proto]) > rx_fib_index && + dm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index] != ~0) + { + s = pool_elt_at_index ( + dm->dhcp_servers[proto], + dm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index]); + } + + return (s); +} + +int dhcp6_proxy_set_server (ip46_address_t *addr, + ip46_address_t *src_addr, + u32 rx_table_id, + u32 server_table_id, + int is_del); +int dhcp4_proxy_set_server (ip46_address_t *addr, + ip46_address_t *src_addr, + u32 rx_table_id, + u32 server_table_id, + int is_del); + +#endif /* included_dhcp_proxy_h */ diff --git a/src/vnet/dhcp/proxy.h b/src/vnet/dhcp/proxy.h deleted file mode 100644 index 4b115c741ff..00000000000 --- a/src/vnet/dhcp/proxy.h +++ /dev/null @@ -1,99 +0,0 @@ -/* - * proxy.h: dhcp proxy - * - * Copyright (c) 2013 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef included_dhcp_proxy_h -#define included_dhcp_proxy_h - -#include <vnet/vnet.h> -#include <vnet/dhcp/packet.h> -#include <vnet/ethernet/ethernet.h> -#include <vnet/ip/ip.h> -#include <vnet/ip/ip4.h> -#include <vnet/ip/ip4_packet.h> -#include <vnet/pg/pg.h> -#include <vnet/ip/format.h> -#include <vnet/ip/udp.h> - -typedef enum { -#define dhcp_proxy_error(n,s) DHCP_PROXY_ERROR_##n, -#include <vnet/dhcp/proxy_error.def> -#undef dhcp_proxy_error - DHCP_PROXY_N_ERROR, -} dhcp_proxy_error_t; - -typedef struct { - u32 oui; - u32 fib_id; -} vss_id; - -typedef union { - u8 as_u8[8]; - vss_id vpn_id; -} vss_info; - -typedef struct { - ip4_address_t dhcp_server; - ip4_address_t dhcp_src_address; - u32 server_fib_index; -} dhcp_server_t; - -typedef struct { - /* Pool of DHCP servers */ - dhcp_server_t * dhcp_servers; - - /* Pool of selected DHCP server. Zero is the default server */ - u32 * dhcp_server_index_by_rx_fib_index; - - /* to drop pkts in server-to-client direction */ - u32 error_drop_node_index; - - vss_info *vss; - - /* hash lookup specific vrf_id -> option 82 vss suboption */ - u32 *vss_index_by_rx_fib_index; - - /* convenience */ - vlib_main_t * vlib_main; - vnet_main_t * vnet_main; -} dhcp_proxy_main_t; - -extern dhcp_proxy_main_t dhcp_proxy_main; - -void dhcp_send_details (void *opaque, - u32 context, - const ip46_address_t *server, - const ip46_address_t *src, - u32 server_fib_id, - u32 rx_fib_id, - u32 vss_fib_id, - u32 vss_oui); - -int dhcp_proxy_set_server (ip4_address_t *addr, - ip4_address_t *src_address, - u32 fib_id, - u32 server_fib_id, - int is_del); - -int dhcp_proxy_set_option82_vss(u32 vrf_id, - u32 oui, - u32 fib_id, - int is_del); - -void dhcp_proxy_dump(void *opaque, - u32 context); - -#endif /* included_dhcp_proxy_h */ diff --git a/src/vnet/dhcpv6/proxy.h b/src/vnet/dhcpv6/proxy.h deleted file mode 100644 index 77ced3619c4..00000000000 --- a/src/vnet/dhcpv6/proxy.h +++ /dev/null @@ -1,94 +0,0 @@ -/* - * proxy.h: dhcp proxy - * - * Copyright (c) 2013 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef included_dhcpv6_proxy_h -#define included_dhcpv6_proxy_h - -#include <vnet/vnet.h> -#include <vnet/ethernet/ethernet.h> -#include <vnet/ip/ip.h> -#include <vnet/ip/ip4.h> -#include <vnet/ip/ip6_packet.h> -#include <vnet/pg/pg.h> -#include <vnet/ip/format.h> -#include <vnet/ip/udp.h> -#include <vnet/dhcpv6/packet.h> - -typedef enum { -#define dhcpv6_proxy_error(n,s) DHCPV6_PROXY_ERROR_##n, -#include <vnet/dhcpv6/proxy_error.def> -#undef dhcpv6_proxy_error - DHCPV6_PROXY_N_ERROR, -} dhcpv6_proxy_error_t; - -typedef struct { - u32 oui; - u32 fib_id; -} dhcpv6_vss_id; - -typedef union { - u8 as_u8[8]; - dhcpv6_vss_id vpn_id; -} dhcpv6_vss_info; - -typedef struct { - ip6_address_t dhcp6_server; - ip6_address_t dhcp6_src_address; - u32 server_fib6_index; -} dhcpv6_server_t; - -typedef struct { - /* Pool of DHCP servers */ - dhcpv6_server_t * dhcp6_servers; - - /* Pool of selected DHCP server. Zero is the default server */ - u32 * dhcp6_server_index_by_rx_fib_index; - - /* all DHCP servers address */ - ip6_address_t all_dhcpv6_server_address; - ip6_address_t all_dhcpv6_server_relay_agent_address; - - /* to drop pkts in server-to-client direction */ - u32 error_drop_node_index; - - dhcpv6_vss_info *vss; - - /* hash lookup specific vrf_id -> VSS vector index*/ - u32 *vss_index_by_rx_fib_index; - - /* convenience */ - vlib_main_t * vlib_main; - vnet_main_t * vnet_main; -} dhcpv6_proxy_main_t; - -dhcpv6_proxy_main_t dhcpv6_proxy_main; - -int dhcpv6_proxy_set_vss(u32 tbl_id, - u32 oui, - u32 fib_id, - int is_del); - -int dhcpv6_proxy_set_server(ip6_address_t *addr, - ip6_address_t *src_address, - u32 rx_fib_id, - u32 server_fib_id, - int is_del); - -void dhcpv6_proxy_dump(void *opaque, - u32 context); - -#endif /* included_dhcpv6_proxy_h */ diff --git a/src/vpp/api/custom_dump.c b/src/vpp/api/custom_dump.c index 70b4e4c91ee..4cc6aa731ec 100644 --- a/src/vpp/api/custom_dump.c +++ b/src/vpp/api/custom_dump.c @@ -21,8 +21,7 @@ #include <vnet/ip/ip.h> #include <vnet/unix/tuntap.h> #include <vnet/mpls/mpls.h> -#include <vnet/dhcp/proxy.h> -#include <vnet/dhcpv6/proxy.h> +#include <vnet/dhcp/dhcp_proxy.h> #include <vnet/l2tp/l2tp.h> #include <vnet/l2/l2_input.h> #include <vnet/sr/sr_packet.h> |