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Viewing changes to lib/route/pktloc_syntax.y

  • Committer: Bazaar Package Importer
  • Author(s): Heiko Stuebner
  • Date: 2011-05-21 19:25:13 UTC
  • Revision ID: james.westby@ubuntu.com-20110521192513-1ieyu9w9kym4bt16
Tags: upstream-3.0
Import upstream version 3.0

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lib/route/pktloc_syntax.y
 
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%{
 
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#include <netlink-local.h>
 
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#include <netlink-tc.h>
 
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#include <netlink/netlink.h>
 
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#include <netlink/utils.h>
 
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#include <netlink/route/pktloc.h>
 
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%}
 
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%locations
 
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%error-verbose
 
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%define api.pure
 
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%name-prefix "pktloc_"
 
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%parse-param {void *scanner}
 
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%lex-param {void *scanner}
 
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%expect 1
 
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%union {
 
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        struct rtnl_pktloc *l;
 
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        uint32_t i;
 
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        char *s;
 
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}
 
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%{
 
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extern int pktloc_lex(YYSTYPE *, YYLTYPE *, void *);
 
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static void yyerror(YYLTYPE *locp, void *scanner, const char *msg)
 
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{
 
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        NL_DBG(1, "Error while parsing packet location file: %s\n", msg);
 
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}
 
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%}
 
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%token <i> ERROR NUMBER LAYER ALIGN
 
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%token <s> NAME
 
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%type <i> mask layer align shift
 
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%type <l> location
 
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%destructor { free($$); } NAME
 
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%start input
 
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%%
 
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input:
 
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        /* empty */
 
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        | location input
 
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        ;
 
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location:
 
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        NAME align layer NUMBER mask shift
 
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                {
 
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                        struct rtnl_pktloc *loc;
 
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                        if (!(loc = rtnl_pktloc_alloc())) {
 
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                                NL_DBG(1, "Allocating a packet location "
 
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                                          "object failed.\n");
 
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                                YYABORT;
 
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                        }
 
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                        loc->name = $1;
 
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                        loc->align = $2;
 
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                        loc->layer = $3;
 
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                        loc->offset = $4;
 
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                        loc->mask = $5;
 
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                        loc->shift = $6;
 
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                        if (rtnl_pktloc_add(loc) < 0) {
 
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                                NL_DBG(1, "Duplicate packet location entry "
 
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                                          "\"%s\"\n", $1);
 
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                        }
 
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                        $$ = loc;
 
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                }
 
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        ;
 
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align:
 
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        ALIGN
 
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                { $$ = $1; }
 
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        | NUMBER
 
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                { $$ = $1; }
 
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        ;
 
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layer:
 
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        /* empty */
 
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                { $$ = TCF_LAYER_NETWORK; }
 
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        | LAYER '+' 
 
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                { $$ = $1; }
 
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        ;
 
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mask:
 
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        /* empty */
 
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                { $$ = 0; }
 
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        | NUMBER
 
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                { $$ = $1; }
 
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        ;
 
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shift:
 
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        /* empty */
 
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                { $$ = 0; }
 
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        | NUMBER
 
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                { $$ = $1; }
 
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        ;