/* * netsniff-ng - the packet sniffing beast * By Daniel Borkmann * Copyright 2012 Daniel Borkmann , * Swiss federal institute of technology (ETH Zurich) * Subject to the GPL, version 2. */ /* lex-func-prefix: yy */ %{ #include #include #include #include #include "bpf_parser.tab.h" #include "xmalloc.h" extern void yyerror(const char *); %} %option align %option nounput %option noyywrap %option noreject %option 8bit %option caseless %option noinput %option nodefault number_oct ([0][0-9]+) number_hex ([0][x][a-fA-F0-9]+) number_bin ([0][b][0-1]+) number_dec (([0])|([-+]?[1-9][0-9]*)) label [a-zA-Z_][a-zA-Z0-9_]+ %% "ldb" { return OP_LDB; } "ldh" { return OP_LDH; } "ld" { return OP_LD; } "ldi" { return OP_LDI; } "ldx" { return OP_LDX; } "ldxi" { return OP_LDXI; } "ldxb" { return OP_LDXB; } "st" { return OP_ST; } "stx" { return OP_STX; } "jmp"|"ja" { return OP_JMP; } "jeq" { return OP_JEQ; } "jneq"|"jne" { return OP_JNEQ; } "jlt" { return OP_JLT; } "jle" { return OP_JLE; } "jgt" { return OP_JGT; } "jge" { return OP_JGE; } "jset" { return OP_JSET; } "add" { return OP_ADD; } "sub" { return OP_SUB; } "mul" { return OP_MUL; } "div" { return OP_DIV; } "mod" { return OP_MOD; } "neg" { return OP_NEG; } "and" { return OP_AND; } "xor" { return OP_XOR; } "or" { return OP_OR; } "lsh" { return OP_LSH; } "rsh" { return OP_RSH; } "ret" { return OP_RET; } "tax" { return OP_TAX; } "txa" { return OP_TXA; } "#"?("len"|"pktlen") { return K_PKT_LEN; } "#"?("pto"|"proto") { return K_PROTO; } "#"?("type") { return K_TYPE; } "#"?("poff") { return K_POFF; } "#"?("ifx"|"ifidx") { return K_IFIDX; } "#"?("nla") { return K_NLATTR; } "#"?("nlan") { return K_NLATTR_NEST; } "#"?("mark") { return K_MARK; } "#"?("que"|"queue"|"Q") { return K_QUEUE; } "#"?("hat"|"hatype") { return K_HATYPE; } "#"?("rxh"|"rxhash") { return K_RXHASH; } "#"?("cpu") { return K_CPU; } "#"?("vlant"|"vlan_tci") { return K_VLANT; } "#"?("vlana"|"vlan_acc") { return K_VLANP; } "#"?("vlanp") { return K_VLANP; } ":" { return ':'; } "," { return ','; } "#" { return '#'; } "%" { return '%'; } "[" { return '['; } "]" { return ']'; } "(" { return '('; } ")" { return ')'; } "x" { return 'x'; } "a" { return 'a'; } "+" { return '+'; } "M" { return 'M'; } "*" { return '*'; } "&" { return '&'; } {number_hex} { yylval.number = strtoul(yytext, NULL, 16); return number; } {number_oct} { yylval.number = strtol(yytext + 1, NULL, 8); return number; } {number_bin} { yylval.number = strtol(yytext + 2, NULL, 2); return number; } {number_dec} { yylval.number = strtol(yytext, NULL, 10); return number; } {label} { yylval.label = xstrdup(yytext); return label; } "/*"([^\*]|\*[^/])*"*/" { /* NOP */ } ";"[^\n]* {/* NOP */} ^#.* {/* NOP */} "\n" { yylineno++; } [ \t]+ {/* NOP */ } . { printf("Unknown character '%s'", yytext); yyerror("lex Unknown character"); } %% ='/cgit.cgi/linux/net-next.git/log/include?h=nds-private-remove&id=f39b2dde4886450b965ccd0a6defe8bc33fcc938'>include/net/net_ratelimit.h
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