diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/plugins/map/ip4_map_t.c | 186 | ||||
| -rw-r--r-- | src/plugins/map/ip6_map_t.c | 347 | ||||
| -rw-r--r-- | src/plugins/map/map.c | 67 | ||||
| -rw-r--r-- | src/plugins/map/map.h | 2 | ||||
| -rw-r--r-- | src/plugins/map/test.c | 3 |
5 files changed, 163 insertions, 442 deletions
diff --git a/src/plugins/map/ip4_map_t.c b/src/plugins/map/ip4_map_t.c index a64b767c908..3d52ba4f3ea 100644 --- a/src/plugins/map/ip4_map_t.c +++ b/src/plugins/map/ip4_map_t.c @@ -102,33 +102,19 @@ ip4_map_fragment_get_port (ip4_header_t * ip4) typedef struct { map_domain_t *d; - u16 id; + u16 recv_port; } icmp_to_icmp6_ctx_t; static int ip4_to_ip6_set_icmp_cb (ip4_header_t * ip4, ip6_header_t * ip6, void *arg) { icmp_to_icmp6_ctx_t *ctx = arg; - map_main_t *mm = &map_main; - if (mm->is_ce) - { - ip6->src_address.as_u64[0] = - map_get_pfx_net (ctx->d, ip4->src_address.as_u32, ctx->id); - ip6->src_address.as_u64[1] = - map_get_sfx_net (ctx->d, ip4->src_address.as_u32, ctx->id); - ip4_map_t_embedded_address (ctx->d, &ip6->dst_address, - &ip4->dst_address); - } - else - { - ip4_map_t_embedded_address (ctx->d, &ip6->src_address, - &ip4->src_address); - ip6->dst_address.as_u64[0] = - map_get_pfx_net (ctx->d, ip4->dst_address.as_u32, ctx->id); - ip6->dst_address.as_u64[1] = - map_get_sfx_net (ctx->d, ip4->dst_address.as_u32, ctx->id); - } + ip4_map_t_embedded_address (ctx->d, &ip6->src_address, &ip4->src_address); + ip6->dst_address.as_u64[0] = + map_get_pfx_net (ctx->d, ip4->dst_address.as_u32, ctx->recv_port); + ip6->dst_address.as_u64[1] = + map_get_sfx_net (ctx->d, ip4->dst_address.as_u32, ctx->recv_port); return 0; } @@ -138,30 +124,14 @@ ip4_to_ip6_set_inner_icmp_cb (ip4_header_t * ip4, ip6_header_t * ip6, void *arg) { icmp_to_icmp6_ctx_t *ctx = arg; - map_main_t *mm = &map_main; - if (mm->is_ce) - { - //Note that the destination address is within the domain - //while the source address is the one outside the domain - ip4_map_t_embedded_address (ctx->d, &ip6->src_address, - &ip4->src_address); - ip6->dst_address.as_u64[0] = - map_get_pfx_net (ctx->d, ip4->dst_address.as_u32, ctx->id); - ip6->dst_address.as_u64[1] = - map_get_sfx_net (ctx->d, ip4->dst_address.as_u32, ctx->id); - } - else - { - //Note that the source address is within the domain - //while the destination address is the one outside the domain - ip4_map_t_embedded_address (ctx->d, &ip6->dst_address, - &ip4->dst_address); - ip6->src_address.as_u64[0] = - map_get_pfx_net (ctx->d, ip4->src_address.as_u32, ctx->id); - ip6->src_address.as_u64[1] = - map_get_sfx_net (ctx->d, ip4->src_address.as_u32, ctx->id); - } + //Note that the source address is within the domain + //while the destination address is the one outside the domain + ip4_map_t_embedded_address (ctx->d, &ip6->dst_address, &ip4->dst_address); + ip6->src_address.as_u64[0] = + map_get_pfx_net (ctx->d, ip4->src_address.as_u32, ctx->recv_port); + ip6->src_address.as_u64[1] = + map_get_sfx_net (ctx->d, ip4->src_address.as_u32, ctx->recv_port); return 0; } @@ -193,7 +163,6 @@ ip4_map_t_icmp (vlib_main_t * vm, u16 len0; icmp_to_icmp6_ctx_t ctx0; ip4_header_t *ip40; - icmp46_header_t *icmp0; next0 = IP4_MAPT_ICMP_NEXT_IP6_LOOKUP; pi0 = to_next[0] = from[0]; @@ -213,11 +182,9 @@ ip4_map_t_icmp (vlib_main_t * vm, vnet_buffer (p0)->map_t.map_domain_index); ip40 = vlib_buffer_get_current (p0); - icmp0 = (icmp46_header_t *) (ip40 + 1); - - ctx0.id = ip4_get_port (ip40, icmp0->type == ICMP6_echo_request); + ctx0.recv_port = ip4_get_port (ip40, 1); ctx0.d = d0; - if (ctx0.id == 0) + if (ctx0.recv_port == 0) { // In case of 1:1 mapping, we don't care about the port if (!(d0->ea_bits_len == 0 && d0->rules)) @@ -470,14 +437,6 @@ ip4_map_t_classify (vlib_buffer_t * p0, map_domain_t * d0, ip4_header_t * ip40, u16 ip4_len0, i32 * dst_port0, u8 * error0, ip4_mapt_next_t * next0) { - map_main_t *mm = &map_main; - u32 port_offset; - - if (mm->is_ce) - port_offset = 0; - else - port_offset = 2; - if (PREDICT_FALSE (ip4_get_fragment_offset (ip40))) { *next0 = IP4_MAPT_NEXT_MAPT_FRAGMENTED; @@ -496,16 +455,14 @@ ip4_map_t_classify (vlib_buffer_t * p0, map_domain_t * d0, vnet_buffer (p0)->map_t.checksum_offset = 36; *next0 = IP4_MAPT_NEXT_MAPT_TCP_UDP; *error0 = ip4_len0 < 40 ? MAP_ERROR_MALFORMED : *error0; - *dst_port0 = - (i32) * ((u16 *) u8_ptr_add (ip40, sizeof (*ip40) + port_offset)); + *dst_port0 = (i32) * ((u16 *) u8_ptr_add (ip40, sizeof (*ip40) + 2)); } else if (PREDICT_TRUE (ip40->protocol == IP_PROTOCOL_UDP)) { vnet_buffer (p0)->map_t.checksum_offset = 26; *next0 = IP4_MAPT_NEXT_MAPT_TCP_UDP; *error0 = ip4_len0 < 28 ? MAP_ERROR_MALFORMED : *error0; - *dst_port0 = - (i32) * ((u16 *) u8_ptr_add (ip40, sizeof (*ip40) + port_offset)); + *dst_port0 = (i32) * ((u16 *) u8_ptr_add (ip40, sizeof (*ip40) + 2)); } else if (ip40->protocol == IP_PROTOCOL_ICMP) { @@ -534,7 +491,6 @@ ip4_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; - map_main_t *mm = &map_main; vlib_combined_counter_main_t *cm = map_main.domain_counters; u32 thread_index = vm->thread_index; @@ -552,7 +508,7 @@ ip4_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) ip4_mapt_next_t next0 = 0, next1 = 0; u16 ip4_len0, ip4_len1; u8 error0, error1; - i32 map_port0, map_port1; + i32 dst_port0, dst_port1; ip4_mapt_pseudo_header_t *pheader0, *pheader1; pi0 = to_next[0] = from[0]; @@ -595,12 +551,12 @@ ip4_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p0)->map_t.mtu = d0->mtu ? d0->mtu : ~0; vnet_buffer (p1)->map_t.mtu = d1->mtu ? d1->mtu : ~0; - map_port0 = -1; - map_port1 = -1; + dst_port0 = -1; + dst_port1 = -1; - ip4_map_t_classify (p0, d0, ip40, ip4_len0, &map_port0, &error0, + ip4_map_t_classify (p0, d0, ip40, ip4_len0, &dst_port0, &error0, &next0); - ip4_map_t_classify (p1, d1, ip41, ip4_len1, &map_port1, &error1, + ip4_map_t_classify (p1, d1, ip41, ip4_len1, &dst_port1, &error1, &next1); //Add MAP-T pseudo header in front of the packet @@ -610,57 +566,31 @@ ip4_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) pheader1 = vlib_buffer_get_current (p1); //Save addresses within the packet - if (mm->is_ce) - { - ip4_map_t_embedded_address (d0, &pheader0->daddr, - &ip40->dst_address); - ip4_map_t_embedded_address (d1, &pheader1->daddr, - &ip41->dst_address); - pheader0->saddr.as_u64[0] = - map_get_pfx_net (d0, ip40->src_address.as_u32, - (u16) map_port0); - pheader0->saddr.as_u64[1] = - map_get_sfx_net (d0, ip40->src_address.as_u32, - (u16) map_port0); - pheader1->saddr.as_u64[0] = - map_get_pfx_net (d1, ip41->src_address.as_u32, - (u16) map_port1); - pheader1->saddr.as_u64[1] = - map_get_sfx_net (d1, ip41->src_address.as_u32, - (u16) map_port1); - } - else - { - ip4_map_t_embedded_address (d0, &pheader0->saddr, - &ip40->src_address); - ip4_map_t_embedded_address (d1, &pheader1->saddr, - &ip41->src_address); - pheader0->daddr.as_u64[0] = - map_get_pfx_net (d0, ip40->dst_address.as_u32, - (u16) map_port0); - pheader0->daddr.as_u64[1] = - map_get_sfx_net (d0, ip40->dst_address.as_u32, - (u16) map_port0); - pheader1->daddr.as_u64[0] = - map_get_pfx_net (d1, ip41->dst_address.as_u32, - (u16) map_port1); - pheader1->daddr.as_u64[1] = - map_get_sfx_net (d1, ip41->dst_address.as_u32, - (u16) map_port1); - } + ip4_map_t_embedded_address (d0, &pheader0->saddr, + &ip40->src_address); + ip4_map_t_embedded_address (d1, &pheader1->saddr, + &ip41->src_address); + pheader0->daddr.as_u64[0] = + map_get_pfx_net (d0, ip40->dst_address.as_u32, (u16) dst_port0); + pheader0->daddr.as_u64[1] = + map_get_sfx_net (d0, ip40->dst_address.as_u32, (u16) dst_port0); + pheader1->daddr.as_u64[0] = + map_get_pfx_net (d1, ip41->dst_address.as_u32, (u16) dst_port1); + pheader1->daddr.as_u64[1] = + map_get_sfx_net (d1, ip41->dst_address.as_u32, (u16) dst_port1); if (PREDICT_FALSE - (ip4_is_first_fragment (ip40) && (map_port0 != -1) + (ip4_is_first_fragment (ip40) && (dst_port0 != -1) && (d0->ea_bits_len != 0 || !d0->rules) - && ip4_map_fragment_cache (ip40, map_port0))) + && ip4_map_fragment_cache (ip40, dst_port0))) { error0 = MAP_ERROR_FRAGMENT_MEMORY; } if (PREDICT_FALSE - (ip4_is_first_fragment (ip41) && (map_port1 != -1) + (ip4_is_first_fragment (ip41) && (dst_port1 != -1) && (d1->ea_bits_len != 0 || !d1->rules) - && ip4_map_fragment_cache (ip41, map_port1))) + && ip4_map_fragment_cache (ip41, dst_port1))) { error1 = MAP_ERROR_FRAGMENT_MEMORY; } @@ -706,7 +636,7 @@ ip4_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) ip4_mapt_next_t next0; u16 ip4_len0; u8 error0; - i32 map_port0; + i32 dst_port0; ip4_mapt_pseudo_header_t *pheader0; pi0 = to_next[0] = from[0]; @@ -732,13 +662,13 @@ ip4_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p0)->map_t.mtu = d0->mtu ? d0->mtu : ~0; - map_port0 = -1; - ip4_map_t_classify (p0, d0, ip40, ip4_len0, &map_port0, &error0, + dst_port0 = -1; + ip4_map_t_classify (p0, d0, ip40, ip4_len0, &dst_port0, &error0, &next0); /* Verify that port is not among the well-known ports */ if ((d0->psid_length > 0 && d0->psid_offset > 0) - && (clib_net_to_host_u16 (map_port0) < + && (clib_net_to_host_u16 (dst_port0) < (0x1 << (16 - d0->psid_offset)))) { error0 = MAP_ERROR_SEC_CHECK; @@ -749,36 +679,20 @@ ip4_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) pheader0 = vlib_buffer_get_current (p0); //Save addresses within the packet - if (mm->is_ce) - { - ip4_map_t_embedded_address (d0, &pheader0->daddr, - &ip40->dst_address); - pheader0->saddr.as_u64[0] = - map_get_pfx_net (d0, ip40->src_address.as_u32, - (u16) map_port0); - pheader0->saddr.as_u64[1] = - map_get_sfx_net (d0, ip40->src_address.as_u32, - (u16) map_port0); - } - else - { - ip4_map_t_embedded_address (d0, &pheader0->saddr, - &ip40->src_address); - pheader0->daddr.as_u64[0] = - map_get_pfx_net (d0, ip40->dst_address.as_u32, - (u16) map_port0); - pheader0->daddr.as_u64[1] = - map_get_sfx_net (d0, ip40->dst_address.as_u32, - (u16) map_port0); - } + ip4_map_t_embedded_address (d0, &pheader0->saddr, + &ip40->src_address); + pheader0->daddr.as_u64[0] = + map_get_pfx_net (d0, ip40->dst_address.as_u32, (u16) dst_port0); + pheader0->daddr.as_u64[1] = + map_get_sfx_net (d0, ip40->dst_address.as_u32, (u16) dst_port0); //It is important to cache at this stage because the result might be necessary //for packets within the same vector. //Actually, this approach even provides some limited out-of-order fragments support if (PREDICT_FALSE - (ip4_is_first_fragment (ip40) && (map_port0 != -1) + (ip4_is_first_fragment (ip40) && (dst_port0 != -1) && (d0->ea_bits_len != 0 || !d0->rules) - && ip4_map_fragment_cache (ip40, map_port0))) + && ip4_map_fragment_cache (ip40, dst_port0))) { error0 = MAP_ERROR_UNKNOWN; } diff --git a/src/plugins/map/ip6_map_t.c b/src/plugins/map/ip6_map_t.c index aa4fa4dbd5c..577dbe57001 100644 --- a/src/plugins/map/ip6_map_t.c +++ b/src/plugins/map/ip6_map_t.c @@ -101,49 +101,27 @@ ip6_map_fragment_get (ip6_header_t * ip6, ip6_frag_hdr_t * frag, typedef struct { map_domain_t *d; - u16 id; + u16 sender_port; } icmp6_to_icmp_ctx_t; static int ip6_to_ip4_set_icmp_cb (ip6_header_t * ip6, ip4_header_t * ip4, void *arg) { icmp6_to_icmp_ctx_t *ctx = arg; - map_main_t *mm = &map_main; + u32 ip4_sadr; - if (mm->is_ce) - { - u32 ip4_dadr; - - //Security check - //Note that this prevents an intermediate IPv6 router from answering the request - ip4_dadr = map_get_ip4 (&ip6->dst_address, ctx->d->flags); - if (ip6->dst_address.as_u64[0] != - map_get_pfx_net (ctx->d, ip4_dadr, ctx->id) - || ip6->dst_address.as_u64[1] != map_get_sfx_net (ctx->d, ip4_dadr, - ctx->id)) - return -1; - - ip4->src_address.as_u32 = - ip6_map_t_embedded_address (ctx->d, &ip6->src_address); - ip4->dst_address.as_u32 = ip4_dadr; - } - else - { - u32 ip4_sadr; - - //Security check - //Note that this prevents an intermediate IPv6 router from answering the request - ip4_sadr = map_get_ip4 (&ip6->src_address, ctx->d->flags); - if (ip6->src_address.as_u64[0] != - map_get_pfx_net (ctx->d, ip4_sadr, ctx->id) - || ip6->src_address.as_u64[1] != map_get_sfx_net (ctx->d, ip4_sadr, - ctx->id)) - return -1; - - ip4->dst_address.as_u32 = - ip6_map_t_embedded_address (ctx->d, &ip6->dst_address); - ip4->src_address.as_u32 = ip4_sadr; - } + //Security check + //Note that this prevents an intermediate IPv6 router from answering the request + ip4_sadr = map_get_ip4 (&ip6->src_address, ctx->d->flags); + if (ip6->src_address.as_u64[0] != + map_get_pfx_net (ctx->d, ip4_sadr, ctx->sender_port) + || ip6->src_address.as_u64[1] != map_get_sfx_net (ctx->d, ip4_sadr, + ctx->sender_port)) + return -1; + + ip4->dst_address.as_u32 = + ip6_map_t_embedded_address (ctx->d, &ip6->dst_address); + ip4->src_address.as_u32 = ip4_sadr; return 0; } @@ -153,42 +131,20 @@ ip6_to_ip4_set_inner_icmp_cb (ip6_header_t * ip6, ip4_header_t * ip4, void *arg) { icmp6_to_icmp_ctx_t *ctx = arg; - map_main_t *mm = &map_main; + u32 inner_ip4_dadr; - if (mm->is_ce) - { - u32 inner_ip4_sadr; - - //Security check of inner packet - inner_ip4_sadr = map_get_ip4 (&ip6->src_address, ctx->d->flags); - if (ip6->src_address.as_u64[0] != - map_get_pfx_net (ctx->d, inner_ip4_sadr, ctx->id) - || ip6->src_address.as_u64[1] != map_get_sfx_net (ctx->d, - inner_ip4_sadr, - ctx->id)) - return -1; - - ip4->src_address.as_u32 = inner_ip4_sadr; - ip4->dst_address.as_u32 = - ip6_map_t_embedded_address (ctx->d, &ip6->dst_address); - } - else - { - u32 inner_ip4_dadr; - - //Security check of inner packet - inner_ip4_dadr = map_get_ip4 (&ip6->dst_address, ctx->d->flags); - if (ip6->dst_address.as_u64[0] != - map_get_pfx_net (ctx->d, inner_ip4_dadr, ctx->id) - || ip6->dst_address.as_u64[1] != map_get_sfx_net (ctx->d, - inner_ip4_dadr, - ctx->id)) - return -1; - - ip4->dst_address.as_u32 = inner_ip4_dadr; - ip4->src_address.as_u32 = - ip6_map_t_embedded_address (ctx->d, &ip6->src_address); - } + //Security check of inner packet + inner_ip4_dadr = map_get_ip4 (&ip6->dst_address, ctx->d->flags); + if (ip6->dst_address.as_u64[0] != + map_get_pfx_net (ctx->d, inner_ip4_dadr, ctx->sender_port) + || ip6->dst_address.as_u64[1] != map_get_sfx_net (ctx->d, + inner_ip4_dadr, + ctx->sender_port)) + return -1; + + ip4->dst_address.as_u32 = inner_ip4_dadr; + ip4->src_address.as_u32 = + ip6_map_t_embedded_address (ctx->d, &ip6->src_address); return 0; } @@ -220,7 +176,6 @@ ip6_map_t_icmp (vlib_main_t * vm, u16 len0; icmp6_to_icmp_ctx_t ctx0; ip6_header_t *ip60; - icmp46_header_t *icmp0; pi0 = to_next[0] = from[0]; from += 1; @@ -233,16 +188,12 @@ ip6_map_t_icmp (vlib_main_t * vm, p0 = vlib_get_buffer (vm, pi0); ip60 = vlib_buffer_get_current (p0); len0 = clib_net_to_host_u16 (ip60->payload_length); - icmp0 = (icmp46_header_t *) (ip60 + 1); d0 = pool_elt_at_index (map_main.domains, vnet_buffer (p0)->map_t.map_domain_index); - - ctx0.id = - ip6_get_port (ip60, icmp0->type == ICMP6_echo_request, - p0->current_length); + ctx0.sender_port = ip6_get_port (ip60, 0, p0->current_length); ctx0.d = d0; - if (ctx0.id == 0) + if (ctx0.sender_port == 0) { // In case of 1:1 mapping, we don't care about the port if (!(d0->ea_bits_len == 0 && d0->rules)) @@ -534,30 +485,22 @@ ip6_map_t_tcp_udp (vlib_main_t * vm, static_always_inline void ip6_map_t_classify (vlib_buffer_t * p0, ip6_header_t * ip60, - map_domain_t * d0, i32 * map_port0, + map_domain_t * d0, i32 * src_port0, u8 * error0, ip6_mapt_next_t * next0, u32 l4_len0, ip6_frag_hdr_t * frag0) { - map_main_t *mm = &map_main; - u32 port_offset; - - if (mm->is_ce) - port_offset = 2; - else - port_offset = 0; - if (PREDICT_FALSE (vnet_buffer (p0)->map_t.v6.frag_offset && ip6_frag_hdr_offset (frag0))) { *next0 = IP6_MAPT_NEXT_MAPT_FRAGMENTED; if (d0->ea_bits_len == 0 && d0->rules) { - *map_port0 = 0; + *src_port0 = 0; } else { - *map_port0 = ip6_map_fragment_get (ip60, frag0, d0); - *error0 = (*map_port0 != -1) ? *error0 : MAP_ERROR_FRAGMENT_DROPPED; + *src_port0 = ip6_map_fragment_get (ip60, frag0, d0); + *error0 = (*src_port0 != -1) ? *error0 : MAP_ERROR_FRAGMENT_DROPPED; } } else @@ -569,11 +512,9 @@ ip6_map_t_classify (vlib_buffer_t * p0, ip6_header_t * ip60, vnet_buffer (p0)->map_t.checksum_offset = vnet_buffer (p0)->map_t.v6.l4_offset + 16; *next0 = IP6_MAPT_NEXT_MAPT_TCP_UDP; - *map_port0 = + *src_port0 = (i32) * - ((u16 *) - u8_ptr_add (ip60, - vnet_buffer (p0)->map_t.v6.l4_offset + port_offset)); + ((u16 *) u8_ptr_add (ip60, vnet_buffer (p0)->map_t.v6.l4_offset)); } else if (PREDICT_TRUE @@ -584,11 +525,9 @@ ip6_map_t_classify (vlib_buffer_t * p0, ip6_header_t * ip60, vnet_buffer (p0)->map_t.checksum_offset = vnet_buffer (p0)->map_t.v6.l4_offset + 6; *next0 = IP6_MAPT_NEXT_MAPT_TCP_UDP; - *map_port0 = + *src_port0 = (i32) * - ((u16 *) - u8_ptr_add (ip60, - vnet_buffer (p0)->map_t.v6.l4_offset + port_offset)); + ((u16 *) u8_ptr_add (ip60, vnet_buffer (p0)->map_t.v6.l4_offset)); } else if (vnet_buffer (p0)->map_t.v6.l4_protocol == IP_PROTOCOL_ICMP6) { @@ -597,7 +536,7 @@ ip6_map_t_classify (vlib_buffer_t * p0, ip6_header_t * ip60, *next0 = IP6_MAPT_NEXT_MAPT_ICMP; if (d0->ea_bits_len == 0 && d0->rules) { - *map_port0 = 0; + *src_port0 = 0; } else if (((icmp46_header_t *) @@ -609,7 +548,7 @@ ip6_map_t_classify (vlib_buffer_t * p0, ip6_header_t * ip60, vnet_buffer (p0)->map_t.v6.l4_offset))->code == ICMP6_echo_request) { - *map_port0 = + *src_port0 = (i32) * ((u16 *) u8_ptr_add (ip60, vnet_buffer (p0)->map_t.v6.l4_offset + 6)); @@ -628,7 +567,6 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) u32 n_left_from, *from, next_index, *to_next, n_left_to_next; vlib_node_runtime_t *error_node = vlib_node_get_runtime (vm, ip6_map_t_node.index); - map_main_t *mm = &map_main; vlib_combined_counter_main_t *cm = map_main.domain_counters; u32 thread_index = vm->thread_index; @@ -648,9 +586,10 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) u8 error0, error1; ip6_mapt_next_t next0, next1; u32 l4_len0, l4_len1; - i32 map_port0, map_port1; + i32 src_port0, src_port1; map_domain_t *d0, *d1; ip6_frag_hdr_t *frag0, *frag1; + u32 saddr0, saddr1; next0 = next1 = 0; //Because compiler whines pi0 = to_next[0] = from[0]; @@ -668,67 +607,29 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) ip60 = vlib_buffer_get_current (p0); ip61 = vlib_buffer_get_current (p1); - if (mm->is_ce) - { - u32 daddr0, daddr1; - daddr0 = 0; /* TODO */ - daddr1 = 0; /* TODO */ - /* NOTE: ip6_map_get_domain currently doesn't utilize second argument */ - - daddr0 = map_get_ip4 (&ip60->dst_address, 0 /*TODO*/); - daddr1 = map_get_ip4 (&ip61->dst_address, 0 /*TODO*/); - d0 = - ip6_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], - (ip4_address_t *) & daddr0, - &vnet_buffer (p0)->map_t.map_domain_index, - &error0); - d1 = - ip6_map_get_domain (vnet_buffer (p1)->ip.adj_index[VLIB_TX], - (ip4_address_t *) & daddr1, - &vnet_buffer (p1)->map_t.map_domain_index, - &error1); - - daddr0 = map_get_ip4 (&ip60->dst_address, d0->flags); - daddr1 = map_get_ip4 (&ip61->dst_address, d1->flags); - - vnet_buffer (p0)->map_t.v6.daddr = daddr0; - vnet_buffer (p1)->map_t.v6.daddr = daddr1; - vnet_buffer (p0)->map_t.v6.saddr = - ip6_map_t_embedded_address (d0, &ip60->src_address); - vnet_buffer (p1)->map_t.v6.saddr = - ip6_map_t_embedded_address (d1, &ip61->src_address); - } - else - { - u32 saddr0, saddr1; - saddr0 = 0; /* TODO */ - saddr1 = 0; /* TODO */ - /* NOTE: ip6_map_get_domain currently doesn't utilize second argument */ - - saddr0 = map_get_ip4 (&ip60->src_address, 0 /*TODO*/); - saddr1 = map_get_ip4 (&ip61->src_address, 0 /*TODO*/); - d0 = - ip6_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], - (ip4_address_t *) & saddr0, - &vnet_buffer (p0)->map_t.map_domain_index, - &error0); - d1 = - ip6_map_get_domain (vnet_buffer (p1)->ip.adj_index[VLIB_TX], - (ip4_address_t *) & saddr1, - &vnet_buffer (p1)->map_t.map_domain_index, - &error1); - - saddr0 = map_get_ip4 (&ip60->src_address, d0->flags); - saddr1 = map_get_ip4 (&ip61->src_address, d1->flags); - - vnet_buffer (p0)->map_t.v6.saddr = saddr0; - vnet_buffer (p1)->map_t.v6.saddr = saddr1; - vnet_buffer (p0)->map_t.v6.daddr = - ip6_map_t_embedded_address (d0, &ip60->dst_address); - vnet_buffer (p1)->map_t.v6.daddr = - ip6_map_t_embedded_address (d1, &ip61->dst_address); - } - + saddr0 = 0; /* TODO */ + saddr1 = 0; /* TODO */ + /* NOTE: ip6_map_get_domain currently doesn't utilize second argument */ + + d0 = ip6_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], + (ip4_address_t *) & saddr0, + &vnet_buffer (p0)->map_t.map_domain_index, + &error0); + d1 = + ip6_map_get_domain (vnet_buffer (p1)->ip.adj_index[VLIB_TX], + (ip4_address_t *) & saddr1, + &vnet_buffer (p1)->map_t.map_domain_index, + &error1); + + saddr0 = map_get_ip4 (&ip60->src_address, d0->flags); + saddr1 = map_get_ip4 (&ip61->src_address, d1->flags); + + vnet_buffer (p0)->map_t.v6.saddr = saddr0; + vnet_buffer (p1)->map_t.v6.saddr = saddr1; + vnet_buffer (p0)->map_t.v6.daddr = + ip6_map_t_embedded_address (d0, &ip60->dst_address); + vnet_buffer (p1)->map_t.v6.daddr = + ip6_map_t_embedded_address (d1, &ip61->dst_address); vnet_buffer (p0)->map_t.mtu = d0->mtu ? d0->mtu : ~0; vnet_buffer (p1)->map_t.mtu = d1->mtu ? d1->mtu : ~0; @@ -756,7 +657,7 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) next1 = IP6_MAPT_NEXT_DROP; } - map_port0 = map_port1 = -1; + src_port0 = src_port1 = -1; l4_len0 = (u32) clib_net_to_host_u16 (ip60->payload_length) + sizeof (*ip60) - vnet_buffer (p0)->map_t.v6.l4_offset; l4_len1 = (u32) clib_net_to_host_u16 (ip61->payload_length) + @@ -770,33 +671,33 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p1)->map_t. v6.frag_offset); - ip6_map_t_classify (p0, ip60, d0, &map_port0, &error0, &next0, + ip6_map_t_classify (p0, ip60, d0, &src_port0, &error0, &next0, l4_len0, frag0); - ip6_map_t_classify (p1, ip61, d1, &map_port1, &error1, &next1, + ip6_map_t_classify (p1, ip61, d1, &src_port1, &error1, &next1, l4_len1, frag1); if (PREDICT_FALSE - ((map_port0 != -1) + ((src_port0 != -1) && (ip60->src_address.as_u64[0] != map_get_pfx_net (d0, vnet_buffer (p0)->map_t.v6.saddr, - map_port0) + src_port0) || ip60->src_address.as_u64[1] != map_get_sfx_net (d0, vnet_buffer (p0)->map_t.v6.saddr, - map_port0)))) + src_port0)))) { error0 = MAP_ERROR_SEC_CHECK; } if (PREDICT_FALSE - ((map_port1 != -1) + ((src_port1 != -1) && (ip61->src_address.as_u64[0] != map_get_pfx_net (d1, vnet_buffer (p1)->map_t.v6.saddr, - map_port1) + src_port1) || ip61->src_address.as_u64[1] != map_get_sfx_net (d1, vnet_buffer (p1)->map_t.v6.saddr, - map_port1)))) + src_port1)))) { error1 = MAP_ERROR_SEC_CHECK; } @@ -807,7 +708,7 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p0)->map_t. v6.frag_offset))) - && (map_port0 != -1) && (d0->ea_bits_len != 0 || !d0->rules) + && (src_port0 != -1) && (d0->ea_bits_len != 0 || !d0->rules) && (error0 == MAP_ERROR_NONE)) { ip6_map_fragment_cache (ip60, @@ -815,7 +716,7 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p0)->map_t. v6.frag_offset), - d0, map_port0); + d0, src_port0); } if (PREDICT_FALSE (vnet_buffer (p1)->map_t.v6.frag_offset && @@ -824,7 +725,7 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p1)->map_t. v6.frag_offset))) - && (map_port1 != -1) && (d1->ea_bits_len != 0 || !d1->rules) + && (src_port1 != -1) && (d1->ea_bits_len != 0 || !d1->rules) && (error1 == MAP_ERROR_NONE)) { ip6_map_fragment_cache (ip61, @@ -832,7 +733,7 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p1)->map_t. v6.frag_offset), - d1, map_port1); + d1, src_port1); } if (PREDICT_TRUE @@ -874,11 +775,11 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) ip6_header_t *ip60; u8 error0; u32 l4_len0; - i32 map_port0; + i32 src_port0; map_domain_t *d0; ip6_frag_hdr_t *frag0; - u32 port_offset; ip6_mapt_next_t next0 = 0; + u32 saddr; pi0 = to_next[0] = from[0]; from += 1; @@ -890,53 +791,21 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) p0 = vlib_get_buffer (vm, pi0); ip60 = vlib_buffer_get_current (p0); - if (mm->is_ce) - { - u32 daddr; - //Save daddr in a different variable to not overwrite ip.adj_index - daddr = 0; /* TODO */ - /* NOTE: ip6_map_get_domain currently doesn't utilize second argument */ - - daddr = map_get_ip4 (&ip60->dst_address, 0 /*TODO*/); - d0 = - ip6_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], - (ip4_address_t *) & daddr, - &vnet_buffer (p0)->map_t.map_domain_index, - &error0); - - daddr = map_get_ip4 (&ip60->dst_address, d0->flags); - - //FIXME: What if d0 is null - vnet_buffer (p0)->map_t.v6.daddr = daddr; - vnet_buffer (p0)->map_t.v6.saddr = - ip6_map_t_embedded_address (d0, &ip60->src_address); - - port_offset = 2; - } - else - { - u32 saddr; - //Save saddr in a different variable to not overwrite ip.adj_index - saddr = 0; /* TODO */ - /* NOTE: ip6_map_get_domain currently doesn't utilize second argument */ - - saddr = map_get_ip4 (&ip60->src_address, 0 /*TODO*/); - d0 = - ip6_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], - (ip4_address_t *) & saddr, - &vnet_buffer (p0)->map_t.map_domain_index, - &error0); - - saddr = map_get_ip4 (&ip60->src_address, d0->flags); - - //FIXME: What if d0 is null - vnet_buffer (p0)->map_t.v6.saddr = saddr; - vnet_buffer (p0)->map_t.v6.daddr = - ip6_map_t_embedded_address (d0, &ip60->dst_address); - - port_offset = 0; - } + //Save saddr in a different variable to not overwrite ip.adj_index + saddr = 0; /* TODO */ + /* NOTE: ip6_map_get_domain currently doesn't utilize second argument */ + + d0 = ip6_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], + (ip4_address_t *) & saddr, + &vnet_buffer (p0)->map_t.map_domain_index, + &error0); + + saddr = map_get_ip4 (&ip60->src_address, d0->flags); + //FIXME: What if d0 is null + vnet_buffer (p0)->map_t.v6.saddr = saddr; + vnet_buffer (p0)->map_t.v6.daddr = + ip6_map_t_embedded_address (d0, &ip60->dst_address); vnet_buffer (p0)->map_t.mtu = d0->mtu ? d0->mtu : ~0; if (PREDICT_FALSE (ip6_parse (ip60, p0->current_length, @@ -951,7 +820,7 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) next0 = IP6_MAPT_NEXT_DROP; } - map_port0 = -1; + src_port0 = -1; l4_len0 = (u32) clib_net_to_host_u16 (ip60->payload_length) + sizeof (*ip60) - vnet_buffer (p0)->map_t.v6.l4_offset; frag0 = @@ -963,8 +832,8 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) if (PREDICT_FALSE (vnet_buffer (p0)->map_t.v6.frag_offset && ip6_frag_hdr_offset (frag0))) { - map_port0 = ip6_map_fragment_get (ip60, frag0, d0); - error0 = (map_port0 != -1) ? error0 : MAP_ERROR_FRAGMENT_MEMORY; + src_port0 = ip6_map_fragment_get (ip60, frag0, d0); + error0 = (src_port0 != -1) ? error0 : MAP_ERROR_FRAGMENT_MEMORY; next0 = IP6_MAPT_NEXT_MAPT_FRAGMENTED; } else @@ -977,12 +846,10 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p0)->map_t.checksum_offset = vnet_buffer (p0)->map_t.v6.l4_offset + 16; next0 = IP6_MAPT_NEXT_MAPT_TCP_UDP; - map_port0 = + src_port0 = (i32) * ((u16 *) - u8_ptr_add (ip60, - vnet_buffer (p0)->map_t.v6.l4_offset + - port_offset)); + u8_ptr_add (ip60, vnet_buffer (p0)->map_t.v6.l4_offset)); } else if (PREDICT_TRUE @@ -994,12 +861,10 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p0)->map_t.checksum_offset = vnet_buffer (p0)->map_t.v6.l4_offset + 6; next0 = IP6_MAPT_NEXT_MAPT_TCP_UDP; - map_port0 = + src_port0 = (i32) * ((u16 *) - u8_ptr_add (ip60, - vnet_buffer (p0)->map_t.v6.l4_offset + - port_offset)); + u8_ptr_add (ip60, vnet_buffer (p0)->map_t.v6.l4_offset)); } else if (vnet_buffer (p0)->map_t.v6.l4_protocol == IP_PROTOCOL_ICMP6) @@ -1016,7 +881,7 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) u8_ptr_add (ip60, vnet_buffer (p0)->map_t.v6. l4_offset))->code == ICMP6_echo_request) - map_port0 = + src_port0 = (i32) * ((u16 *) u8_ptr_add (ip60, @@ -1030,14 +895,14 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) //Security check if (PREDICT_FALSE - ((!mm->is_ce) && (map_port0 != -1) + ((src_port0 != -1) && (ip60->src_address.as_u64[0] != map_get_pfx_net (d0, vnet_buffer (p0)->map_t.v6.saddr, - map_port0) + src_port0) || ip60->src_address.as_u64[1] != map_get_sfx_net (d0, vnet_buffer (p0)->map_t.v6.saddr, - map_port0)))) + src_port0)))) { //Security check when src_port0 is not zero (non-first fragment, UDP or TCP) error0 = MAP_ERROR_SEC_CHECK; @@ -1050,7 +915,7 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p0)->map_t. v6.frag_offset))) - && (map_port0 != -1) && (d0->ea_bits_len != 0 || !d0->rules) + && (src_port0 != -1) && (d0->ea_bits_len != 0 || !d0->rules) && (error0 == MAP_ERROR_NONE)) { ip6_map_fragment_cache (ip60, @@ -1058,7 +923,7 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_buffer (p0)->map_t. v6.frag_offset), - d0, map_port0); + d0, src_port0); } if (PREDICT_TRUE diff --git a/src/plugins/map/map.c b/src/plugins/map/map.c index 49796e47a8e..ee3ff728b58 100644 --- a/src/plugins/map/map.c +++ b/src/plugins/map/map.c @@ -101,8 +101,7 @@ map_create_domain (ip4_address_t * ip4_prefix, /* How many, and which bits to grab from the IPv4 DA */ if (ip4_prefix_len + ea_bits_len < 32) { - if (!(flags & MAP_DOMAIN_TRANSLATION)) - flags |= MAP_DOMAIN_PREFIX; + flags |= MAP_DOMAIN_PREFIX; suffix_shift = 32 - ip4_prefix_len - ea_bits_len; suffix_len = ea_bits_len; } @@ -122,12 +121,6 @@ map_create_domain (ip4_address_t * ip4_prefix, return -1; } - if (mm->is_ce && !(flags & MAP_DOMAIN_TRANSLATION)) - { - clib_warning ("MAP-E CE is not supported yet"); - return -1; - } - /* Get domain index */ pool_get_aligned (mm->domains, d, CLIB_CACHE_LINE_BYTES); clib_memset (d, 0, sizeof (*d)); @@ -159,23 +152,11 @@ map_create_domain (ip4_address_t * ip4_prefix, map_dpo_create (DPO_PROTO_IP4, *map_domain_index, &dpo_v4); /* Create ip4 route */ - u8 ip4_pfx_len; - ip4_address_t ip4_pfx; - if (mm->is_ce) - { - ip4_pfx_len = 0; - ip4_pfx.as_u32 = 0; - } - else - { - ip4_pfx_len = d->ip4_prefix_len; - ip4_pfx = d->ip4_prefix; - } fib_prefix_t pfx = { .fp_proto = FIB_PROTOCOL_IP4, - .fp_len = ip4_pfx_len, + .fp_len = d->ip4_prefix_len, .fp_addr = { - .ip4 = ip4_pfx, + .ip4 = d->ip4_prefix, } , }; @@ -201,22 +182,10 @@ map_create_domain (ip4_address_t * ip4_prefix, * already exists and is MAP sourced, it is now MAP source n+1 times * and will need to be removed n+1 times. */ - u8 ip6_pfx_len; - ip6_address_t ip6_pfx; - if (mm->is_ce) - { - ip6_pfx_len = d->ip6_prefix_len; - ip6_pfx = d->ip6_prefix; - } - else - { - ip6_pfx_len = d->ip6_src_len; - ip6_pfx = d->ip6_src; - } fib_prefix_t pfx6 = { .fp_proto = FIB_PROTOCOL_IP6, - .fp_len = ip6_pfx_len, - .fp_addr.ip6 = ip6_pfx, + .fp_len = d->ip6_src_len, + .fp_addr.ip6 = d->ip6_src, }; fib_table_entry_special_dpo_add (0, &pfx6, @@ -2172,7 +2141,7 @@ VLIB_CLI_COMMAND(map_add_domain_command, static) = { .path = "map add domain", .short_help = "map add domain ip4-pfx <ip4-pfx> ip6-pfx <ip6-pfx> " "ip6-src <ip6-pfx> ea-bits-len <n> psid-offset <n> psid-len <n> " - "[map-t] [map-ce] [mtu <mtu>]", + "[map-t] [mtu <mtu>]", .function = map_add_domain_command_fn, }; @@ -2248,28 +2217,6 @@ VLIB_PLUGIN_REGISTER() = { /* *INDENT-ON* */ -static clib_error_t * -map_config (vlib_main_t * vm, unformat_input_t * input) -{ - map_main_t *mm = &map_main; - u8 is_ce = false; - - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "customer edge")) - is_ce = true; - else - return clib_error_return (0, "unknown input '%U'", - format_unformat_error, input); - } - - mm->is_ce = is_ce; - - return 0; -} - -VLIB_CONFIG_FUNCTION (map_config, "map"); - /* * map_init */ @@ -2301,8 +2248,6 @@ map_init (vlib_main_t * vm) /* ICMP6 Type 1, Code 5 for security check failure */ mm->icmp6_enabled = false; - mm->is_ce = false; - /* Inner or outer fragmentation */ mm->frag_inner = false; mm->frag_ignore_df = false; diff --git a/src/plugins/map/map.h b/src/plugins/map/map.h index c4cc855d2e2..0d4270d5806 100644 --- a/src/plugins/map/map.h +++ b/src/plugins/map/map.h @@ -247,8 +247,6 @@ typedef struct { bool sec_check_frag; /* Inbound security check for (subsequent) fragments */ bool icmp6_enabled; /* Send destination unreachable for security check failure */ - bool is_ce; /* If this MAP node is a Customer Edge router*/ - /* ICMPv6 -> ICMPv4 relay parameters */ ip4_address_t icmp4_src_address; vlib_simple_counter_main_t icmp_relayed; diff --git a/src/plugins/map/test.c b/src/plugins/map/test.c index ff10fc929a6..f3c893a7a31 100644 --- a/src/plugins/map/test.c +++ b/src/plugins/map/test.c @@ -48,8 +48,7 @@ get_domain(ip4_address_t * ip4_prefix, u8 ip4_prefix_len, /* How many, and which bits to grab from the IPv4 DA */ if (ip4_prefix_len + ea_bits_len < 32) { - if (!(flags & MAP_DOMAIN_TRANSLATION)) - d->flags |= MAP_DOMAIN_PREFIX; + d->flags |= MAP_DOMAIN_PREFIX; d->suffix_shift = 32 - ip4_prefix_len - ea_bits_len; suffix_len = ea_bits_len; } |