diff options
| -rw-r--r-- | src/config.l | 160 |
1 files changed, 94 insertions, 66 deletions
diff --git a/src/config.l b/src/config.l index bf06446..c460871 100644 --- a/src/config.l +++ b/src/config.l @@ -34,26 +34,113 @@ %option warn -%top { -#include <config.yy.h> -} - %s NEEDSPACE %s STRING %s COMMENT -%% + +%top { +#include <config.yy.h> +} + %{ +typedef struct keyword { + const char *keyword; + int token; +} keyword_t; + +/* the keyword list must be sorted */ +static const keyword_t keywords[] = { + { "addresses", TOK_ADDRESSES }, + { "any", TOK_ANY }, + { "as", TOK_AS }, + { "auto", TOK_AUTO }, + { "bind", TOK_BIND }, + { "capabilities", TOK_CAPABILITIES }, + { "crypto", TOK_CRYPTO }, + { "debug", TOK_DEBUG }, + { "default", TOK_DEFAULT }, + { "disestablish", TOK_DISESTABLISH }, + { "down", TOK_DOWN }, + { "drop", TOK_DROP }, + { "early", TOK_EARLY }, + { "error", TOK_ERROR }, + { "establish", TOK_ESTABLISH }, + { "fatal", TOK_FATAL }, + { "float", TOK_FLOAT }, + { "forward", TOK_FORWARD }, + { "from", TOK_FROM }, + { "group", TOK_GROUP }, + { "hide", TOK_HIDE }, + { "include", TOK_INCLUDE }, + { "info", TOK_INFO }, + { "interface", TOK_INTERFACE }, + { "ip", TOK_IP }, + { "ipv4", TOK_IPV4 }, + { "ipv6", TOK_IPV6 }, + { "key", TOK_KEY }, + { "level", TOK_LEVEL }, + { "limit", TOK_LIMIT }, + { "log", TOK_LOG }, + { "mac", TOK_MAC }, + { "method", TOK_METHOD }, + { "mode", TOK_MODE }, + { "mtu", TOK_MTU }, + { "no", TOK_NO }, + { "on", TOK_ON }, + { "peer", TOK_PEER }, + { "peers", TOK_PEERS }, + { "pmtu", TOK_PMTU }, + { "port", TOK_PORT }, + { "post-down", TOK_POST_DOWN }, + { "pre-up", TOK_PRE_UP }, + { "protocol", TOK_PROTOCOL }, + { "remote", TOK_REMOTE }, + { "secret", TOK_SECRET }, + { "stderr", TOK_STDERR }, + { "syslog", TOK_SYSLOG }, + { "tap", TOK_TAP }, + { "to", TOK_TO }, + { "tun", TOK_TUN }, + { "up", TOK_UP }, + { "use", TOK_USE }, + { "user", TOK_USER }, + { "verbose", TOK_VERBOSE }, + { "verify", TOK_VERIFY }, + { "warn", TOK_WARN }, + { "yes", TOK_YES }, +}; + +static int compare_keywords(const void *v1, const void *v2) { + const keyword_t *k1 = v1, *k2 = v2; + return strcmp(k1->keyword, k2->keyword); +} + #define UPDATE_LOCATION do { \ yylloc->first_line = yylloc->last_line; \ yylloc->first_column = yylloc->last_column+1; \ yylloc->last_column += yyleng; \ } while (0) - -#define TOKEN(tok) do { UPDATE_LOCATION; BEGIN(NEEDSPACE); return tok; } while (0) %} +%% + <INITIAL>{ +[a-z][-a-z0-9]* { + const keyword_t key = {yytext}; + const keyword_t *ret = bsearch(&key, keywords, sizeof(keywords)/sizeof(keyword_t), sizeof(keyword_t), compare_keywords); + + UPDATE_LOCATION; + + if (!ret) { + yylval->error = "syntax error"; + return -1; + } + + BEGIN(NEEDSPACE); + return ret->token; +} + [0-9]+ { char *endptr; @@ -70,65 +157,6 @@ return TOK_UINT; } -interface { TOKEN(TOK_INTERFACE); } -bind { TOKEN(TOK_BIND); } -mtu { TOKEN(TOK_MTU); } -pmtu { TOKEN(TOK_PMTU); } -mode { TOKEN(TOK_MODE); } -protocol { TOKEN(TOK_PROTOCOL); } -method { TOKEN(TOK_METHOD); } -peer { TOKEN(TOK_PEER); } -remote { TOKEN(TOK_REMOTE); } -ipv4 { TOKEN(TOK_IPV4); } -ipv6 { TOKEN(TOK_IPV6); } -secret { TOKEN(TOK_SECRET); } -key { TOKEN(TOK_KEY); } -include { TOKEN(TOK_INCLUDE); } -as { TOKEN(TOK_AS); } -any { TOKEN(TOK_ANY); } -tap { TOKEN(TOK_TAP); } -tun { TOKEN(TOK_TUN); } -on { TOKEN(TOK_ON); } -pre-up { TOKEN(TOK_PRE_UP); } -up { TOKEN(TOK_UP); } -down { TOKEN(TOK_DOWN); } -post-down { TOKEN(TOK_POST_DOWN); } -establish { TOKEN(TOK_ESTABLISH); } -disestablish { TOKEN(TOK_DISESTABLISH); } -verify { TOKEN(TOK_VERIFY); } -peers { TOKEN(TOK_PEERS); } -from { TOKEN(TOK_FROM); } -log { TOKEN(TOK_LOG); } -level { TOKEN(TOK_LEVEL); } -syslog { TOKEN(TOK_SYSLOG); } -stderr { TOKEN(TOK_STDERR); } -to { TOKEN(TOK_TO); } -fatal { TOKEN(TOK_FATAL); } -error { TOKEN(TOK_ERROR); } -warn { TOKEN(TOK_WARN); } -info { TOKEN(TOK_INFO); } -verbose { TOKEN(TOK_VERBOSE); } -debug { TOKEN(TOK_DEBUG); } -forward { TOKEN(TOK_FORWARD); } -yes { TOKEN(TOK_YES); } -no { TOKEN(TOK_NO); } -port { TOKEN(TOK_PORT); } -float { TOKEN(TOK_FLOAT); } -crypto { TOKEN(TOK_CRYPTO); } -use { TOKEN(TOK_USE); } -default { TOKEN(TOK_DEFAULT); } -user { TOKEN(TOK_USER); } -group { TOKEN(TOK_GROUP); } -drop { TOKEN(TOK_DROP); } -capabilities { TOKEN(TOK_CAPABILITIES); } -early { TOKEN(TOK_EARLY); } -limit { TOKEN(TOK_LIMIT); } -hide { TOKEN(TOK_HIDE); } -ip { TOKEN(TOK_IP); } -mac { TOKEN(TOK_MAC); } -addresses { TOKEN(TOK_ADDRESSES); } -auto { TOKEN(TOK_AUTO); } - [0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3} { UPDATE_LOCATION; |