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Diffstat (limited to 'examples/ipsec-secgw/parser.h')
| -rw-r--r-- | examples/ipsec-secgw/parser.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/examples/ipsec-secgw/parser.h b/examples/ipsec-secgw/parser.h new file mode 100644 index 00000000..d31ae016 --- /dev/null +++ b/examples/ipsec-secgw/parser.h @@ -0,0 +1,116 @@ +/* BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <netinet/in.h> +#include <netinet/ip.h> + +#ifndef __PARSER_H +#define __PARSER_H + +struct parse_status { + int status; + char parse_msg[256]; +}; + +#define APP_CHECK(exp, status, fmt, ...) \ +do { \ + if (!(exp)) { \ + sprintf(status->parse_msg, fmt "\n", \ + ## __VA_ARGS__); \ + status->status = -1; \ + } else \ + status->status = 0; \ +} while (0) + +#define APP_CHECK_PRESENCE(val, str, status) \ + APP_CHECK(val == 0, status, \ + "item \"%s\" already present", str) + +#define APP_CHECK_TOKEN_EQUAL(tokens, index, ref, status) \ + APP_CHECK(strcmp(tokens[index], ref) == 0, status, \ + "unrecognized input \"%s\": expect \"%s\"\n", \ + tokens[index], ref) + +static inline int +is_str_num(const char *str) +{ + uint32_t i; + + for (i = 0; i < strlen(str); i++) + if (!isdigit(str[i])) + return -1; + + return 0; +} + +#define APP_CHECK_TOKEN_IS_NUM(tokens, index, status) \ + APP_CHECK(is_str_num(tokens[index]) == 0, status, \ + "input \"%s\" is not valid number string", tokens[index]) + + +#define INCREMENT_TOKEN_INDEX(index, max_num, status) \ +do { \ + APP_CHECK(index + 1 < max_num, status, "reaching the end of " \ + "the token array"); \ + index++; \ +} while (0) + +int +parse_ipv4_addr(const char *token, struct in_addr *ipv4, uint32_t *mask); + +int +parse_ipv6_addr(const char *token, struct in6_addr *ipv6, uint32_t *mask); + +int +parse_range(const char *token, uint16_t *low, uint16_t *high); + +void +parse_sp4_tokens(char **tokens, uint32_t n_tokens, + struct parse_status *status); + +void +parse_sp6_tokens(char **tokens, uint32_t n_tokens, + struct parse_status *status); + +void +parse_sa_tokens(char **tokens, uint32_t n_tokens, + struct parse_status *status); + +void +parse_rt_tokens(char **tokens, uint32_t n_tokens, + struct parse_status *status); + +int +parse_cfg_file(const char *cfg_filename); + +#endif |