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usr.sbin/jail/jailparse.y

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/* /*
* A config file is a list of jails and parameters. Parameters are * A config file is a list of jails and parameters. Parameters are
* added to the current jail, otherwise to a global pesudo-jail. * added to the current jail, otherwise to a global pesudo-jail.
*/ */
conf : conf :
| conf jail | conf jail
| conf param ';' | conf param ';'
{ {
if (!special_param($2, scanner)) {
struct cfjail *j = current_jail; struct cfjail *j = current_jail;
if (j == NULL) { if (j == NULL) {
if (global_jail == NULL) { if (global_jail == NULL) {
global_jail = add_jail(); global_jail = add_jail();
global_jail->name = estrdup("*"); global_jail->name = estrdup("*");
} }
j = global_jail; j = global_jail;
} }
TAILQ_INSERT_TAIL(&j->params, $2, tq); TAILQ_INSERT_TAIL(&j->params, $2, tq);
} }
}
| conf ';' | conf ';'
; ;
jail : jail_name '{' conf '}' jail : jail_name '{' conf '}'
{ {
current_jail = current_jail->cfparent; current_jail = current_jail->cfparent;
} }
; ;
▲ Show 20 Lines • Show All 41 Lines • ▼ Show 20 Lines | name PLEQ value
TAILQ_CONCAT(&$$->val, $3, tq); TAILQ_CONCAT(&$$->val, $3, tq);
$$->flags |= PF_APPEND; $$->flags |= PF_APPEND;
free($3); free($3);
} }
| name value | name value
{ {
$$ = $1; $$ = $1;
TAILQ_CONCAT(&$$->val, $2, tq); TAILQ_CONCAT(&$$->val, $2, tq);
$$->flags |= PF_NAMEVAL;
free($2); free($2);
} }
| error | error
; ;
/* /*
* A parameter has a fixed name. A variable definition looks just like a * A parameter has a fixed name. A variable definition looks just like a
* parameter except that the name is a variable. * parameter except that the name is a variable.
▲ Show 20 Lines • Show All 73 Lines • ▼ Show 20 Lines | string VAR1
STAILQ_INSERT_TAIL(&$$->vars, v, tq); STAILQ_INSERT_TAIL(&$$->vars, v, tq);
} }
; ;
%% %%
extern int YYLEX_DECL(); extern int YYLEX_DECL();
extern struct cflex *yyget_extra(void *scanner);
extern int yyget_lineno(void *scanner);
extern char *yyget_text(void *scanner);
static void static void
YYERROR_DECL() YYERROR_DECL()
{ {
if (!yyget_text(scanner)) if (!yyget_text(scanner))
warnx("%s line %d: %s", warnx("%s line %d: %s",
yyget_extra(scanner)->cfname, yyget_lineno(scanner), s); yyget_extra(scanner)->cfname, yyget_lineno(scanner), s);
else if (!yyget_text(scanner)[0]) else if (!yyget_text(scanner)[0])
warnx("%s: unexpected EOF", warnx("%s: unexpected EOF",
yyget_extra(scanner)->cfname); yyget_extra(scanner)->cfname);
else else
warnx("%s line %d: %s: %s", warnx("%s line %d: %s: %s",
yyget_extra(scanner)->cfname, yyget_lineno(scanner), yyget_extra(scanner)->cfname, yyget_lineno(scanner),
yyget_text(scanner), s); yyget_text(scanner), s);
}
/* Handle special parameters (i.e. the include directive).
* Return true if the parameter was specially handled.
*/
static int
special_param(struct cfparam *p, void *scanner)
{
if ((p->flags & (PF_VAR | PF_APPEND | PF_NAMEVAL)) != PF_NAMEVAL
|| strcmp(p->name, ".include"))
return 0;
struct cfstring *s;
TAILQ_FOREACH(s, &p->val, tq) {
if (STAILQ_EMPTY(&s->vars))
include_config(scanner, s->s);
else {
warnx("%s line %d: "
"variables not permitted in '.include' filename",
yyget_extra(scanner)->cfname,
yyget_lineno(scanner));
yyget_extra(scanner)->error = 1;
}
}
free_param_strings(p);
free(p);
return 1;
} }