diff options
Diffstat (limited to 'src/vnet/ip/reass')
| -rw-r--r-- | src/vnet/ip/reass/ip4_full_reass.c | 131 | ||||
| -rw-r--r-- | src/vnet/ip/reass/ip4_full_reass.h | 1 |
2 files changed, 111 insertions, 21 deletions
diff --git a/src/vnet/ip/reass/ip4_full_reass.c b/src/vnet/ip/reass/ip4_full_reass.c index 4d578c5ce44..ba3a3586cbd 100644 --- a/src/vnet/ip/reass/ip4_full_reass.c +++ b/src/vnet/ip/reass/ip4_full_reass.c @@ -184,6 +184,7 @@ typedef struct /** Worker handoff */ u32 fq_index; u32 fq_feature_index; + u32 fq_custom_index; // reference count for enabling/disabling feature - per interface u32 *feature_use_refcount_per_intf; @@ -205,6 +206,13 @@ typedef enum typedef enum { + NORMAL, + FEATURE, + CUSTOM +} ip4_full_reass_node_type_t; + +typedef enum +{ RANGE_NEW, RANGE_SHRINK, RANGE_DISCARD, @@ -241,6 +249,7 @@ typedef struct extern vlib_node_registration_t ip4_full_reass_node; extern vlib_node_registration_t ip4_full_reass_node_feature; +extern vlib_node_registration_t ip4_full_reass_node_custom; static void ip4_full_reass_trace_details (vlib_main_t * vm, u32 bi, @@ -546,7 +555,7 @@ ip4_full_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node, ip4_full_reass_main_t * rm, ip4_full_reass_per_thread_t * rt, ip4_full_reass_t * reass, u32 * bi0, - u32 * next0, u32 * error0, bool is_custom_app) + u32 * next0, u32 * error0, bool is_custom) { vlib_buffer_t *first_b = vlib_get_buffer (vm, reass->first_bi); vlib_buffer_t *last_b = NULL; @@ -730,7 +739,7 @@ ip4_full_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node, #endif } *bi0 = reass->first_bi; - if (!is_custom_app) + if (!is_custom) { *next0 = IP4_FULL_REASS_NEXT_INPUT; } @@ -840,12 +849,11 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node, ip4_full_reass_main_t * rm, ip4_full_reass_per_thread_t * rt, ip4_full_reass_t * reass, u32 * bi0, u32 * next0, - u32 * error0, bool is_custom_app, - u32 * handoff_thread_idx) + u32 * error0, bool is_custom, u32 * handoff_thread_idx) { vlib_buffer_t *fb = vlib_get_buffer (vm, *bi0); vnet_buffer_opaque_t *fvnb = vnet_buffer (fb); - if (is_custom_app) + if (is_custom) { // store (error_)next_index before it's overwritten reass->next_index = fvnb->ip.reass.next_index; @@ -1066,7 +1074,7 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node, reass->memory_owner_thread_index != reass->sendout_thread_index; rc = ip4_full_reass_finalize (vm, node, rm, rt, reass, bi0, next0, error0, - is_custom_app); + is_custom); if (IP4_REASS_RC_OK == rc && handoff) { rc = IP4_REASS_RC_HANDOFF; @@ -1093,8 +1101,7 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node, always_inline uword ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, bool is_feature, - bool is_custom_app) + vlib_frame_t * frame, ip4_full_reass_node_type_t type) { u32 *from = vlib_frame_vector_args (frame); u32 n_left_from, n_left_to_next, *to_next, next_index; @@ -1122,7 +1129,7 @@ ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node, if (!ip4_get_fragment_more (ip0) && !ip4_get_fragment_offset (ip0)) { // this is a whole packet - no fragmentation - if (!is_custom_app) + if (CUSTOM != type) { next0 = IP4_FULL_REASS_NEXT_INPUT; } @@ -1177,7 +1184,7 @@ ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node, u32 handoff_thread_idx; switch (ip4_full_reass_update (vm, node, rm, rt, reass, &bi0, &next0, - &error0, is_custom_app, &handoff_thread_idx)) + &error0, CUSTOM == type, &handoff_thread_idx)) { case IP4_REASS_RC_OK: /* nothing to do here */ @@ -1246,7 +1253,7 @@ ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node, reass.owner_thread_index); } } - else if (is_feature && IP4_ERROR_NONE == error0) + else if (FEATURE == type && IP4_ERROR_NONE == error0) { vnet_feature_next (&next0, b0); } @@ -1278,8 +1285,7 @@ VLIB_NODE_FN (ip4_full_reass_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return ip4_full_reass_inline (vm, node, frame, false /* is_feature */ , - false /* is_custom_app */ ); + return ip4_full_reass_inline (vm, node, frame, NORMAL); } /* *INDENT-OFF* */ @@ -1304,8 +1310,7 @@ VLIB_NODE_FN (ip4_full_reass_node_feature) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return ip4_full_reass_inline (vm, node, frame, true /* is_feature */ , - false /* is_custom_app */ ); + return ip4_full_reass_inline (vm, node, frame, FEATURE); } /* *INDENT-OFF* */ @@ -1335,7 +1340,49 @@ VNET_FEATURE_INIT (ip4_full_reass_feature, static) = { }; /* *INDENT-ON* */ +VLIB_NODE_FN (ip4_full_reass_node_custom) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return ip4_full_reass_inline (vm, node, frame, CUSTOM); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip4_full_reass_node_custom) = { + .name = "ip4-full-reassembly-custom", + .vector_size = sizeof (u32), + .format_trace = format_ip4_full_reass_trace, + .n_errors = ARRAY_LEN (ip4_full_reass_error_strings), + .error_strings = ip4_full_reass_error_strings, + .n_next_nodes = IP4_FULL_REASS_N_NEXT, + .next_nodes = + { + [IP4_FULL_REASS_NEXT_INPUT] = "ip4-input", + [IP4_FULL_REASS_NEXT_DROP] = "ip4-drop", + [IP4_FULL_REASS_NEXT_HANDOFF] = "ip4-full-reass-custom-hoff", + }, +}; +/* *INDENT-ON* */ + +/* *INDENT-OFF* */ +VNET_FEATURE_INIT (ip4_full_reass_custom, static) = { + .arc_name = "ip4-unicast", + .node_name = "ip4-full-reassembly-feature", + .runs_before = VNET_FEATURES ("ip4-lookup", + "ipsec4-input-feature"), + .runs_after = 0, +}; + +/* *INDENT-ON* */ + #ifndef CLIB_MARCH_VARIANT +uword +ip4_full_reass_custom_register_next_node (uword node_index) +{ + return vlib_node_add_next (vlib_get_main (), + ip4_full_reass_node_custom.index, node_index); +} + always_inline u32 ip4_full_reass_get_nbuckets () { @@ -1476,6 +1523,8 @@ ip4_full_reass_init_function (vlib_main_t * vm) rm->fq_index = vlib_frame_queue_main_init (ip4_full_reass_node.index, 0); rm->fq_feature_index = vlib_frame_queue_main_init (ip4_full_reass_node_feature.index, 0); + rm->fq_custom_index = + vlib_frame_queue_main_init (ip4_full_reass_node_custom.index, 0); rm->feature_use_refcount_per_intf = NULL; return error; @@ -1729,7 +1778,8 @@ format_ip4_full_reass_handoff_trace (u8 * s, va_list * args) always_inline uword ip4_full_reass_handoff_node_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, bool is_feature) + vlib_frame_t * frame, + ip4_full_reass_node_type_t type) { ip4_full_reass_main_t *rm = &ip4_full_reass_main; @@ -1745,7 +1795,21 @@ ip4_full_reass_handoff_node_inline (vlib_main_t * vm, b = bufs; ti = thread_indices; - fq_index = (is_feature) ? rm->fq_feature_index : rm->fq_index; + switch (type) + { + case NORMAL: + fq_index = rm->fq_index; + break; + case FEATURE: + fq_index = rm->fq_feature_index; + break; + case CUSTOM: + fq_index = rm->fq_custom_index; + break; + default: + clib_warning ("Unexpected `type' (%d)!", type); + ASSERT (0); + } while (n_left_from > 0) { @@ -1779,8 +1843,7 @@ VLIB_NODE_FN (ip4_full_reass_handoff_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return ip4_full_reass_handoff_node_inline (vm, node, frame, - false /* is_feature */ ); + return ip4_full_reass_handoff_node_inline (vm, node, frame, NORMAL); } @@ -1807,8 +1870,7 @@ VLIB_NODE_FN (ip4_full_reass_feature_handoff_node) (vlib_main_t * vm, node, vlib_frame_t * frame) { - return ip4_full_reass_handoff_node_inline (vm, node, frame, - true /* is_feature */ ); + return ip4_full_reass_handoff_node_inline (vm, node, frame, FEATURE); } /* *INDENT-ON* */ @@ -1829,6 +1891,33 @@ VLIB_REGISTER_NODE (ip4_full_reass_feature_handoff_node) = { }; /* *INDENT-ON* */ +/* *INDENT-OFF* */ +VLIB_NODE_FN (ip4_full_reass_custom_handoff_node) (vlib_main_t * vm, + vlib_node_runtime_t * + node, + vlib_frame_t * frame) +{ + return ip4_full_reass_handoff_node_inline (vm, node, frame, CUSTOM); +} +/* *INDENT-ON* */ + + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip4_full_reass_custom_handoff_node) = { + .name = "ip4-full-reass-custom-hoff", + .vector_size = sizeof (u32), + .n_errors = ARRAY_LEN(ip4_full_reass_handoff_error_strings), + .error_strings = ip4_full_reass_handoff_error_strings, + .format_trace = format_ip4_full_reass_handoff_trace, + + .n_next_nodes = 1, + + .next_nodes = { + [0] = "error-drop", + }, +}; +/* *INDENT-ON* */ + #ifndef CLIB_MARCH_VARIANT int ip4_full_reass_enable_disable_with_refcnt (u32 sw_if_index, int is_enable) diff --git a/src/vnet/ip/reass/ip4_full_reass.h b/src/vnet/ip/reass/ip4_full_reass.h index 8c82989086b..000c80c5906 100644 --- a/src/vnet/ip/reass/ip4_full_reass.h +++ b/src/vnet/ip/reass/ip4_full_reass.h @@ -46,6 +46,7 @@ vnet_api_error_t ip4_full_reass_enable_disable (u32 sw_if_index, int ip4_full_reass_enable_disable_with_refcnt (u32 sw_if_index, int is_enable); +uword ip4_full_reass_custom_register_next_node (uword node_index); #endif /* __included_ip4_full_reass_h__ */ /* |