/* Lex configuration parser. * * This file defines the token for parsing the configuration file * * Note : This module is NOT thread-safe. All processing must be done from one thread only. */ %{ #include <stdio.h> #include "mme_config.h" /* Include yacc tokens definitions */ #include "mme_parser.h" /* Update the column information */ #ifdef DEBUG_LEX #define YY_USER_ACTION { \ yylloc->first_column = yylloc->last_column + 1; \ yylloc->last_column = yylloc->first_column + yyleng - 1; \ TRACE_DEBUG(FULL, \ "(%d:%d-%d:%d) matched rule %d, length=%d, txt='%s'\n", \ yylloc->first_line, yylloc->first_column, \ yylloc->last_line, yylloc->last_column, \ yy_act, yyleng, yytext); \ } #else /* DEBUG_LEX */ #define YY_USER_ACTION { \ yylloc->first_column = yylloc->last_column + 1; \ yylloc->last_column = yylloc->first_column + yyleng - 1; \ } #endif #define YY_NO_INPUT %} %option bison-bridge bison-locations %option noyywrap %option nounput /* Quoted string. Multilines do not match. */ qstring \"[^\"\n]*\" %% /* List of patterns and actions */ <*>\n { /* Update the line count */ yylloc->first_line++; yylloc->last_line++; yylloc->last_column=0; } <*>([[:space:]]{-}[\n])+ ; /* Eat all spaces, not new lines */ <*>#.*$ ; /* Eat all comments */ {qstring} { /* First copy the string without the quotes for use in the yacc parser */ if ((yylval->string = strdup(yytext+1)) == NULL) { /* This allocates one useless tail char but... it's easier :D */ return LEX_ERROR;/* on error, trig an error in yacc parser */ } yylval->string[yyleng-2] = '\0'; /* the yacc parser will check the string is valid */ return QSTRING; } [[:digit:]]+ { /* Convert this to an integer value */ int ret = sscanf(yytext, "%i", &yylval->integer); if (ret != 1) { /* No matching: an error occurred */ fprintf(stderr, "Unable to convert the value '%s' to a valid number: %s\n", yytext, strerror(errno)); return LEX_ERROR; /* trig an error in yacc parser */ /* Maybe we could REJECT instead of failing here? */ } return INTEGER; } /* Full words tokens (keywords) */ (?i:"EMERGENCY_ATTACH_SUPPORTED") { return EMERGENCY_ATTACH_SUPPORTED; } (?i:"UNAUTHENTICATED_IMSI_SUPPORTED") { return UNAUTHENTICATED_IMSI_SUPPORTED; } (?i:"MAXENB") { return MAX_ENB; } (?i:"MAXUE") { return MAX_UE; } (?i:"S6A_CONF") { return S6A_CONF; } (?i:"ITTI_QUEUE_SIZE") { return ITTI_QUEUE_SIZE; } (?i:"SCTP_INSTREAMS") { return SCTP_INSTREAMS; } (?i:"SCTP_OUTSTREAMS") { return SCTP_OUTSTREAMS; } (?i:"MME_CODE") { return MME_CODE; } (?i:"MME_GID") { return MME_GID; } (?i:"REALM") { return REALM; } (?i:"PLMN") { return PLMN_Y; } (?i:"RELATIVE_CAPACITY") { return RELATIVE_CAP; } (?i:"S1AP_OUTCOME_TIMER") { return S1AP_OUTCOME_TIMER; } (?i:"MME_STATISTIC_TIMER") { return MME_STATISTIC_TIMER; } (?i:"SGW_INTERFACE_NAME_FOR_S11") { return SGW_INTERFACE_NAME_FOR_S11; } (?i:"SGW_IP_ADDRESS_FOR_S11") { return SGW_IP_ADDRESS_FOR_S11; } (?i:"SGW_IP_NETMASK_FOR_S11") { return SGW_IP_NETMASK_FOR_S11; } (?i:"SGW_INTERFACE_NAME_FOR_S1U_S12_S4_UP") { return SGW_INTERFACE_NAME_FOR_S1U_S12_S4_UP; } (?i:"SGW_IP_ADDRESS_FOR_S1U_S12_S4_UP") { return SGW_IP_ADDRESS_FOR_S1U_S12_S4_UP; } (?i:"SGW_IP_NETMASK_FOR_S1U_S12_S4_UP") { return SGW_IP_NETMASK_FOR_S1U_S12_S4_UP; } (?i:"SGW_INTERFACE_NAME_FOR_S5_S8_UP") { return SGW_INTERFACE_NAME_FOR_S5_S8_UP; } (?i:"SGW_IP_ADDRESS_FOR_S5_S8_UP") { return SGW_IP_ADDRESS_FOR_S5_S8_UP; } (?i:"SGW_IP_NETMASK_FOR_S5_S8_UP") { return SGW_IP_NETMASK_FOR_S5_S8_UP; } (?i:"PGW_INTERFACE_NAME_FOR_S5_S8") { return PGW_INTERFACE_NAME_FOR_S5_S8; } (?i:"PGW_IP_ADDRESS_FOR_S5_S8") { return PGW_IP_ADDRESS_FOR_S5_S8; } (?i:"PGW_IP_NETMASK_FOR_S5_S8") { return PGW_IP_NETMASK_FOR_S5_S8; } (?i:"PGW_INTERFACE_NAME_FOR_SGI") { return PGW_INTERFACE_NAME_FOR_SGI; } (?i:"PGW_IP_ADDR_FOR_SGI") { return PGW_IP_ADDR_FOR_SGI; } (?i:"PGW_IP_NETMASK_FOR_SGI") { return PGW_IP_NETMASK_FOR_SGI; } (?i:"MME_INTERFACE_NAME_FOR_S1_MME") { return MME_INTERFACE_NAME_FOR_S1_MME; } (?i:"MME_IP_ADDRESS_FOR_S1_MME") { return MME_IP_ADDRESS_FOR_S1_MME; } (?i:"MME_IP_NETMASK_FOR_S1_MME") { return MME_IP_NETMASK_FOR_S1_MME; } (?i:"MME_INTERFACE_NAME_FOR_S11_MME") { return MME_INTERFACE_NAME_FOR_S11_MME; } (?i:"MME_IP_ADDRESS_FOR_S11_MME") { return MME_IP_ADDRESS_FOR_S11_MME; } (?i:"MME_IP_NETMASK_FOR_S11_MME") { return MME_IP_NETMASK_FOR_S11_MME; } /* Valid single characters for yyparse */ <*>[.=,:;{}] { return yytext[0]; } <*>[[:alnum:]]+ | /* This rule is only useful to print a complete token in error messages */ /* Unrecognized character */ <*>. { fprintf(stderr, "Unrecognized text on line %d col %d: '%s'.\n", yylloc->first_line, yylloc->first_column, yytext); return LEX_ERROR; } %%