vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2017-09-23	libmemif: Jumbo frames data/buffer length fix	Jakub Grajciar	1	-1/+1
2017-09-13	Shared memory packet interface (memif) library	Jakub Grajciar	1	-0/+19

/* * 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. */ /* * format.c: generic network formatting/unformating * * Copyright (c) 2008 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 <vlib/vlib.h> u8 * format_vlib_rx_tx (u8 * s, va_list * args) { vlib_rx_or_tx_t r = va_arg (*args, vlib_rx_or_tx_t); char *t; switch (r) { case VLIB_RX: t = "rx"; break; case VLIB_TX: t = "tx"; break; default: t = "INVALID"; break; } vec_add (s, t, strlen (t)); return s; } u8 * format_vlib_read_write (u8 * s, va_list * args) { vlib_rx_or_tx_t r = va_arg (*args, vlib_rx_or_tx_t); char *t; switch (r) { case VLIB_READ: t = "read"; break; case VLIB_WRITE: t = "write"; break; default: t = "INVALID"; break; } vec_add (s, t, strlen (t)); return s; } /* Formats buffer data as printable ascii or as hex. */ u8 * format_vlib_buffer_data (u8 * s, va_list * args) { u8 *data = va_arg (*args, u8 *); u32 n_data_bytes = va_arg (*args, u32); u32 i, is_printable; is_printable = 1; for (i = 0; i < n_data_bytes && is_printable; i++) { u8 c = data[i]; if (c < 0x20) is_printable = 0; else if (c >= 0x7f) is_printable = 0; } if (is_printable) vec_add (s, data, n_data_bytes); else s = format (s, "%U", format_hex_bytes, data, n_data_bytes); return s; } /* Enable/on => 1; disable/off => 0. */ uword unformat_vlib_enable_disable (unformat_input_t * input, va_list * args) { int *result = va_arg (*args, int *); int enable; if (unformat (input, "enable") || unformat (input, "on")) enable = 1; else if (unformat (input, "disable") || unformat (input, "off")) enable = 0; else return 0; *result = enable; return 1; } /* rx/tx => VLIB_RX/VLIB_TX. */ uword unformat_vlib_rx_tx (unformat_input_t * input, va_list * args) { int *result = va_arg (*args, int *); if (unformat (input, "rx")) *result = VLIB_RX; else if (unformat (input, "tx")) *result = VLIB_TX; else return 0; return 1; } /* Parse an int either %d or 0x%x. */ uword unformat_vlib_number (unformat_input_t * input, va_list * args) { int *result = va_arg (*args, int *); return (unformat (input, "0x%x", result) || unformat (input, "%d", result)); } /* Parse a-zA-Z0-9_ token and hash to value. */ uword unformat_vlib_number_by_name (unformat_input_t * input, va_list * args) { uword *hash = va_arg (*args, uword *); int *result = va_arg (*args, int *); uword *p; u8 *token; int i; if (!unformat_user (input, unformat_token, "a-zA-Z0-9_", &token)) return 0; /* Null terminate. */ if (vec_len (token) > 0 && token[vec_len (token) - 1] != 0) vec_add1 (token, 0); /* Check for exact match. */ p = hash_get_mem (hash, token); if (p) goto done; /* Convert to upper case & try match. */ for (i = 0; i < vec_len (token); i++) if (token[i] >= 'a' && token[i] <= 'z') token[i] = 'A' + token[i] - 'a'; p = hash_get_mem (hash, token); done: vec_free (token); if (p) *result = p[0]; return p != 0; } /* Parse a filename to dump debug info */ uword unformat_vlib_tmpfile (unformat_input_t * input, va_list * args) { u8 **chroot_filename = va_arg (*args, u8 **); u8 *filename; if (!unformat (input, "%s", &filename)) return 0; /* Brain-police user path input */ if (strstr ((char *) filename, "..") || index ((char *) filename, '/')) { vec_free (filename); return 0; } *chroot_filename = format (0, "/tmp/%s%c", filename, 0); vec_free (filename); return 1; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */