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authorMatthias Schiffer <mschiffer@universe-factory.net>2012-03-24 20:55:27 +0100
committerMatthias Schiffer <mschiffer@universe-factory.net>2012-03-24 20:55:27 +0100
commit4ffc28ecd6d914f9c1e5aaf5d5921ee4827bb289 (patch)
treeddd64c27220b75f45a6efdc162bbbe040a9ca001 /src/config.y
parent78fe2cda0572433e40889bcd7d64dd22707bfdd0 (diff)
downloadfastd-4ffc28ecd6d914f9c1e5aaf5d5921ee4827bb289.tar
fastd-4ffc28ecd6d914f9c1e5aaf5d5921ee4827bb289.zip
Partial implementation of a config files parser
Diffstat (limited to 'src/config.y')
-rw-r--r--src/config.y106
1 files changed, 106 insertions, 0 deletions
diff --git a/src/config.y b/src/config.y
new file mode 100644
index 0000000..08c5050
--- /dev/null
+++ b/src/config.y
@@ -0,0 +1,106 @@
+%define api.pure
+%name-prefix "fastd_config_"
+%lex-param {fastd_context *ctx}
+%lex-param {yyscan_t scanner}
+%parse-param {fastd_context *ctx}
+%parse-param {fastd_config *config}
+%parse-param {yyscan_t scanner}
+
+%code requires {
+ #include <arpa/inet.h>
+}
+
+%union {
+ int num;
+ char* str;
+ struct in_addr addr;
+ struct in6_addr addr6;
+}
+
+%token <num> TOK_INTEGER
+%token <str> TOK_STRING
+%token <str> TOK_IDENTIFIER
+
+%token <str> TOK_INTERFACE
+%token <str> TOK_BIND
+%token <str> TOK_MTU
+%token <str> TOK_MODE
+%token <str> TOK_PROTOCOL
+%token <str> TOK_PEER
+
+%token <addr> TOK_ADDR
+%token <addr6> TOK_ADDR6
+
+%token <str> TOK_ANY
+%token <str> TOK_FLOAT
+%token <str> TOK_TAP
+%token <str> TOK_TUN
+
+/* %code top {
+ #define YY_DECL int fastd_config_lex(YYSTYPE *yylval_param, fastd_context *ctx, yyscan_t yyscanner)
+}*/
+
+
+%code {
+ #include <config.ll.h>
+ YY_DECL;
+
+ void fastd_config_error(fastd_context *ctx, fastd_config *config, void *scanner, char *s);
+}
+
+%code provides {
+ #include <fastd.h>
+ int fastd_config_parse (fastd_context *ctx, fastd_config *config, void *scanner);
+}
+
+%%
+config: config statement
+ |
+ ;
+
+statement: TOK_INTERFACE interface ';'
+ | TOK_BIND bind ';'
+ | TOK_MTU mtu ';'
+ | TOK_MODE mode ';'
+ | TOK_PROTOCOL protocol ';'
+ | TOK_PEER peer '{' peer_config '}'
+ ;
+
+interface: TOK_STRING { config->ifname = strdup($1); }
+ ;
+
+bind: TOK_ADDR
+ | TOK_ADDR ':' port
+ | TOK_ADDR6
+ | TOK_ADDR6 ':' port
+ | TOK_ANY
+ | TOK_ANY ':' port
+ ;
+
+mtu: TOK_INTEGER { config->mtu = $1; }
+ ;
+
+mode: TOK_TAP { config->mode = MODE_TAP; }
+ | TOK_TUN { config->mode = MODE_TUN; }
+ ;
+
+protocol: TOK_STRING
+ ;
+
+peer: TOK_STRING
+ |
+ ;
+
+peer_config: peer_config peer_statement
+ |
+ ;
+
+peer_statement: ':'
+ ;
+
+port: TOK_INTEGER
+ ;
+%%
+void fastd_config_error(fastd_context *ctx, fastd_config *config, yyscan_t scanner, char *s) {
+ exit_error(ctx, "config error: %s", s);
+}