fib: format function for adjacency flags - vpp

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author	Neale Ranns <neale@graphiant.com>	2021-03-04 16:23:26 +0000
committer	Neale Ranns <neale@graphiant.com>	2021-03-05 12:23:54 +0000
commit	d89de31489cc0fb0c3d606fe9b30a97934942e80 (patch)
tree	5e6ff1a85a20add5e6bb65b6ffe48aa01348d10b /src/vnet
parent	8fb5add31885fcee1abaf60dd903aa566cc53b0d (diff)

fib: format function for adjacency flags

Type: improvement Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Ib01ed3231321f0f38c4b1deb885c4cf718cc0147

Diffstat (limited to 'src/vnet')

-rw-r--r--

src/vnet/adj/rewrite.c

-rw-r--r--

src/vnet/adj/rewrite.h

2 files changed, 18 insertions, 0 deletions

/* * Copyright (c) 2015 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. */ /* * snap.c: snap support * * Copyright (c) 2010 Eliot Dresselhaus * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include <vnet/vnet.h> #include <vnet/snap/snap.h> #include <vnet/ethernet/ethernet.h> /* Global main structure. */ snap_main_t snap_main; static u8 * format_cisco_snap_protocol (u8 * s, va_list * args) { snap_header_t *h = va_arg (*args, snap_header_t *); u16 protocol = clib_net_to_host_u16 (h->protocol); char *t = 0; switch (protocol) { #define _(n,f) case n: t = #f; break; foreach_snap_cisco_protocol; #undef _ default: break; } if (t) return format (s, "%s", t); else return format (s, "unknown 0x%x", protocol); } u8 * format_snap_protocol (u8 * s, va_list * args) { snap_header_t *h = va_arg (*args, snap_header_t *); u32 oui = snap_header_get_oui (h); u16 protocol = clib_net_to_host_u16 (h->protocol); switch (oui) { case IEEE_OUI_ethernet: return format (s, "ethernet %U", format_ethernet_type, h->protocol); case IEEE_OUI_cisco: return format (s, "cisco %U", format_cisco_snap_protocol, h); default: return format (s, "oui 0x%06x 0x%04x", oui, protocol); } } u8 * format_snap_header_with_length (u8 * s, va_list * args) { snap_main_t *sm = &snap_main; snap_header_t *h = va_arg (*args, snap_header_t *); snap_protocol_info_t *pi = snap_get_protocol_info (sm, h); u32 max_header_bytes = va_arg (*args, u32); u32 indent, header_bytes; header_bytes = sizeof (h[0]); if (max_header_bytes != 0 && header_bytes > max_header_bytes) return format (s, "snap header truncated"); indent = format_get_indent (s); s = format (s, "SNAP %U", format_snap_protocol, h); if (max_header_bytes != 0 && header_bytes > max_header_bytes && pi != 0) { vlib_node_t *node = vlib_get_node (sm->vlib_main, pi->node_index); if (node->format_buffer) s = format (s, "\n%U%U", format_white_space, indent, node->format_buffer, (void *) (h + 1), max_header_bytes - header_bytes); } return s; } u8 * format_snap_header (u8 * s, va_list * args) { snap_header_t *h = va_arg (*args, snap_header_t *); return format (s, "%U", format_snap_header_with_length, h, 0); } /* Returns snap protocol as an int in host byte order. */ uword unformat_snap_protocol (unformat_input_t * input, va_list * args) { snap_header_t *result = va_arg (*args, snap_header_t *); snap_main_t *sm = &snap_main; snap_oui_and_protocol_t p; u32 i; /* Numeric type. */ if (unformat (input, "0x%x 0x%x", &p.oui, &p.protocol)) { if (p.oui >= (1 << 24)) return 0; if (p.protocol >= (1 << 16)) return 0; } /* Named type. */ else if (unformat_user (input, unformat_vlib_number_by_name, sm->protocol_info_by_name, &i)) { snap_protocol_info_t *pi = vec_elt_at_index (sm->protocols, i); p = pi->oui_and_protocol; } else return 0; snap_header_set_protocol (result, &p); return 1; } uword unformat_snap_header (unformat_input_t * input, va_list * args) { u8 **result = va_arg (*args, u8 **); snap_header_t _h, *h = &_h; if (!unformat (input, "%U", unformat_snap_protocol, h)) return 0; /* Add header to result. */ { void *p; u32 n_bytes = sizeof (h[0]); vec_add2 (*result, p, n_bytes); clib_memcpy (p, h, n_bytes); } return 1; } static clib_error_t * snap_init (vlib_main_t * vm) { snap_main_t *sm = &snap_main; clib_memset (sm, 0, sizeof (sm[0])); sm->vlib_main = vm; mhash_init (&sm->protocol_hash, sizeof (uword), sizeof (snap_oui_and_protocol_t)); sm->protocol_info_by_name = hash_create_string ( /* elts */ 0, sizeof (uword)); return vlib_call_init_function (vm, snap_input_init); } VLIB_INIT_FUNCTION (snap_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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