static int fixup_subst(void** param, int param_no)
{
struct subst_expr* se;
str subst;
struct fis_param *ap;
struct fis_param **av;
char *s;
char *p;
if (param_no==1) {
s = (char*)*param;
ap = 0;
p = 0;
av = (struct fis_param**)pkg_malloc(2*sizeof(struct fis_param*));
if(av==NULL)
{
LM_ERR("no more pkg memory\n");
return E_UNSPEC;
}
memset(av, 0, 2*sizeof(struct fis_param*));
/* avp src / avp dst /flags */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 2 [%s]\n", s);
return E_OUT_OF_MEM;
}
if (ap->u.sval.type!=PVT_AVP)
{
LM_ERR("bad attribute name <%s>\n", (char*)*param);
pkg_free(av);
return E_UNSPEC;
}
/* attr name is mandatory */
if (ap->opd&AVPOPS_VAL_NONE)
{
LM_ERR("you must specify a name for the AVP\n");
return E_UNSPEC;
}
av[0] = ap;
if(p==0 || *p=='\0')
{
*param=(void*)av;
return 0;
}
/* dst || flags */
s = p;
if(*s==PV_MARKER)
{
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
if(p==0 || (p!=0 && p-s>1))
{
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 2 [%s]\n",s);
return E_OUT_OF_MEM;
}
if (ap->u.sval.type!=PVT_AVP)
{
LM_ERR("bad attribute name <%s>!\n", s);
pkg_free(av);
return E_UNSPEC;
}
/* attr name is mandatory */
if (ap->opd&AVPOPS_VAL_NONE)
{
LM_ERR("you must specify a name for the AVP!\n");
return E_UNSPEC;
}
av[1] = ap;
}
if(p==0 || *p=='\0')
{
*param=(void*)av;
return 0;
}
}
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p) {
case 'g':
case 'G':
av[0]->ops|=AVPOPS_FLAG_ALL;
break;
case 'd':
case 'D':
av[0]->ops|=AVPOPS_FLAG_DELETE;
break;
default:
LM_ERR("bad flag <%c>\n",*p);
return E_UNSPEC;
}
}
*param=(void*)av;
} else if (param_no==2) {
LM_DBG("%s fixing %s\n", exports.name, (char*)(*param));
subst.s=*param;
subst.len=strlen(*param);
se=subst_parser(&subst);
if (se==0){
LM_ERR("%s: bad subst re %s\n",exports.name, (char*)*param);
return E_BAD_RE;
}
/* don't free string -- needed for specifiers */
/* pkg_free(*param); */
/* replace it with the compiled subst. re */
*param=se;
}
return 0;
}
static int fixup_op_avp(void** param, int param_no)
{
struct fis_param *ap;
struct fis_param **av;
char *s;
char *p;
s = (char*)*param;
ap = 0;
if (param_no==1)
{
av = (struct fis_param**)pkg_malloc(2*sizeof(struct fis_param*));
if(av==NULL)
{
LM_ERR("no more pkg memory\n");
return E_UNSPEC;
}
memset(av, 0, 2*sizeof(struct fis_param*));
/* avp src / avp dst */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
av[0] = avpops_parse_pvar(s);
if (av[0]==0)
{
LM_ERR("unable to get pseudo-variable in param 1\n");
return E_OUT_OF_MEM;
}
if (av[0]->u.sval.type!=PVT_AVP)
{
LM_ERR("bad attribute name <%s>\n", (char*)*param);
pkg_free(av);
return E_UNSPEC;
}
if(p==0 || *p=='\0')
{
*param=(void*)av;
return 0;
}
s = p;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 1 (2)\n");
return E_OUT_OF_MEM;
}
if (ap->u.sval.type!=PVT_AVP)
{
LM_ERR("bad attribute name/alias <%s>!\n", s);
pkg_free(av);
return E_UNSPEC;
}
av[1] = ap;
*param=(void*)av;
return 0;
} else if (param_no==2) {
if ( (ap=parse_op_value(s))==0 )
{
LM_ERR("failed to parse the value \n");
return E_UNSPEC;
}
/* only integer values or avps */
if ( (ap->opd&AVPOPS_VAL_STR)!=0 && (ap->opd&AVPOPS_VAL_PVAR)==0)
{
LM_ERR("operations requires integer values\n");
return E_UNSPEC;
}
*param=(void*)ap;
return 0;
}
return -1;
}
static int fixup_pushto_avp(void** param, int param_no)
{
struct fis_param *ap;
char *s;
char *p;
s = (char*)*param;
ap = 0;
if (param_no==1)
{
if ( *s!='$')
{
LM_ERR("bad param 1; expected : $ru $du ...\n");
return E_UNSPEC;
}
/* compose the param structure */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 1\n");
return E_OUT_OF_MEM;
}
switch(ap->u.sval.type) {
case PVT_RURI:
ap->opd = AVPOPS_VAL_NONE|AVPOPS_USE_RURI;
if ( p && !(
(!strcasecmp("username",p)
&& (ap->opd|=AVPOPS_FLAG_USER0)) ||
(!strcasecmp("domain",p)
&& (ap->opd|=AVPOPS_FLAG_DOMAIN0)) ))
{
LM_ERR("unknown ruri flag \"%s\"!\n",p);
return E_UNSPEC;
}
break;
case PVT_DSTURI:
if ( p!=0 )
{
LM_ERR("unknown duri flag \"%s\"!\n",p);
return E_UNSPEC;
}
ap->opd = AVPOPS_VAL_NONE|AVPOPS_USE_DURI;
break;
case PVT_HDR:
/* what's the hdr destination ? request or reply? */
LM_ERR("push to header is obsolete - use append_hf() "
"or append_to_reply() from textops module!\n");
return E_UNSPEC;
break;
case PVT_BRANCH:
if ( p!=0 )
{
LM_ERR("unknown branch flag \"%s\"!\n",p);
return E_UNSPEC;
}
ap->opd = AVPOPS_VAL_NONE|AVPOPS_USE_BRANCH;
break;
default:
LM_ERR("unsupported destination \"%s\"; "
"expected $ru,$du,$br\n",s);
return E_UNSPEC;
}
} else if (param_no==2) {
/* attribute name*/
if ( *s!='$')
{
LM_ERR("bad param 1; expected :$pseudo-variable ...\n");
return E_UNSPEC;
}
/* compose the param structure */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param 2\n");
return E_OUT_OF_MEM;
}
if (ap->u.sval.type==PVT_NULL)
{
LM_ERR("bad param 2; expected : $pseudo-variable ...\n");
pkg_free(ap);
return E_UNSPEC;
}
ap->opd |= AVPOPS_VAL_PVAR;
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p) {
case 'g':
case 'G':
ap->ops|=AVPOPS_FLAG_ALL;
break;
default:
LM_ERR("bad flag <%c>\n",*p);
pkg_free(ap);
return E_UNSPEC;
}
}
}
*param=(void*)ap;
return 0;
}
static int fixup_check_avp(void** param, int param_no)
{
struct fis_param *ap;
regex_t* re;
char *s;
s = (char*)*param;
ap = 0;
if (param_no==1)
{
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR(" unable to get pseudo-variable in P1\n");
return E_OUT_OF_MEM;
}
/* attr name is mandatory */
if (ap->u.sval.type==PVT_NULL)
{
LM_ERR("null pseudo-variable in P1\n");
return E_UNSPEC;
}
} else if (param_no==2) {
if ( (ap=parse_check_value(s))==0 )
{
LM_ERR(" failed to parse checked value \n");
return E_UNSPEC;
}
/* if REGEXP op -> compile the expresion */
if (ap->ops&AVPOPS_OP_RE)
{
if ( (ap->opd&AVPOPS_VAL_STR)==0 )
{
LM_ERR(" regexp operation requires string value\n");
return E_UNSPEC;
}
re = pkg_malloc(sizeof(regex_t));
if (re==0)
{
LM_ERR(" no more pkg mem\n");
return E_OUT_OF_MEM;
}
LM_DBG("compiling regexp <%.*s>\n", ap->u.s.len, ap->u.s.s);
if (regcomp(re, ap->u.s.s,
REG_EXTENDED|REG_ICASE|REG_NEWLINE))
{
pkg_free(re);
LM_ERR("bad re <%.*s>\n", ap->u.s.len, ap->u.s.s);
return E_BAD_RE;
}
/* free the string and link the regexp */
// pkg_free(ap->sval.p.s);
ap->u.s.s = (char*)re;
} else if (ap->ops&AVPOPS_OP_FM) {
if ( !( ap->opd&AVPOPS_VAL_PVAR ||
(!(ap->opd&AVPOPS_VAL_PVAR) && ap->opd&AVPOPS_VAL_STR) ) )
{
LM_ERR(" fast_match operation requires string value or "
"avp name/alias (%d/%d)\n", ap->opd, ap->ops);
return E_UNSPEC;
}
}
}
*param=(void*)ap;
return 0;
}
static int fixup_copy_avp(void** param, int param_no)
{
struct fis_param *ap;
char *s;
char *p;
s = (char*)*param;
ap = 0;
p = 0;
if (param_no==2)
{
/* avp / flags */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
}
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in P%d\n", param_no);
return E_OUT_OF_MEM;
}
/* attr name is mandatory */
if (ap->u.sval.type!=PVT_AVP)
{
LM_ERR("you must specify only AVP as parameter\n");
return E_UNSPEC;
}
if (param_no==2)
{
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p) {
case 'g':
case 'G':
ap->ops|=AVPOPS_FLAG_ALL;
break;
case 'd':
case 'D':
ap->ops|=AVPOPS_FLAG_DELETE;
break;
case 'n':
case 'N':
ap->ops|=AVPOPS_FLAG_CASTN;
break;
case 's':
case 'S':
ap->ops|=AVPOPS_FLAG_CASTS;
break;
default:
LM_ERR("bad flag <%c>\n",*p);
return E_UNSPEC;
}
}
}
*param=(void*)ap;
return 0;
}
static int fixup_delete_avp(void** param, int param_no)
{
struct fis_param *ap=NULL;
char *p;
char *s;
unsigned int flags;
str s0;
s = (char*)(*param);
if (param_no==1) {
/* attribute name / alias */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
if(*s=='$')
{
/* is variable */
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get"
" pseudo-variable in param \n");
return E_UNSPEC;
}
if (ap->u.sval.type!=PVT_AVP)
{
LM_ERR("bad param; expected : $avp(name)\n");
return E_UNSPEC;
}
ap->opd|=AVPOPS_VAL_PVAR;
ap->type = AVPOPS_VAL_PVAR;
} else {
if(strlen(s)<1)
{
LM_ERR("bad param - expected : $avp(name), *, s or i value\n");
return E_UNSPEC;
}
ap = (struct fis_param*)pkg_malloc(sizeof(struct fis_param));
if (ap==0)
{
LM_ERR(" no more pkg mem\n");
return E_OUT_OF_MEM;
}
memset(ap, 0, sizeof(struct fis_param));
ap->opd|=AVPOPS_VAL_NONE;
switch(*s) {
case 's': case 'S':
ap->opd = AVPOPS_VAL_NONE|AVPOPS_VAL_STR;
break;
case 'i': case 'I':
ap->opd = AVPOPS_VAL_NONE|AVPOPS_VAL_INT;
break;
case '*': case 'a': case 'A':
ap->opd = AVPOPS_VAL_NONE;
break;
default:
LM_ERR(" bad param - expected : *, s or i AVP flag\n");
pkg_free(ap);
return E_UNSPEC;
}
/* flags */
flags = 0;
if(*(s+1)!='\0')
{
s0.s = s+1;
s0.len = strlen(s0.s);
if(str2int(&s0, &flags)!=0)
{
LM_ERR("bad avp flags\n");
pkg_free(ap);
return E_UNSPEC;
}
}
ap->type = AVPOPS_VAL_INT;
ap->u.n = flags<<8;
}
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p)
{
case 'g':
case 'G':
ap->ops|=AVPOPS_FLAG_ALL;
break;
default:
LM_ERR(" bad flag <%c>\n",*p);
if(ap!=NULL)
pkg_free(ap);
return E_UNSPEC;
}
}
/* force some flags: if no avp name is given, force "all" flag */
if (ap->opd&AVPOPS_VAL_NONE)
ap->ops |= AVPOPS_FLAG_ALL;
*param=(void*)ap;
}
return 0;
}
static int fixup_is_avp_set(void** param, int param_no)
{
struct fis_param *ap;
char *p;
char *s;
s = (char*)(*param);
if (param_no==1) {
/* attribute name | alias / flags */
if ( (p=strchr(s,'/'))!=0 )
*(p++)=0;
ap = avpops_parse_pvar(s);
if (ap==0)
{
LM_ERR("unable to get pseudo-variable in param\n");
return E_OUT_OF_MEM;
}
if (ap->u.sval.type!=PVT_AVP)
{
LM_ERR("bad attribute name <%s>\n", (char*)*param);
return E_UNSPEC;
}
if(p==0 || *p=='\0')
ap->ops|=AVPOPS_FLAG_ALL;
/* flags */
for( ; p&&*p ; p++ )
{
switch (*p) {
case 'e':
case 'E':
ap->ops|=AVPOPS_FLAG_EMPTY;
break;
case 'n':
case 'N':
if(ap->ops&AVPOPS_FLAG_CASTS)
{
LM_ERR("invalid flag combination <%c> and 's|S'\n",*p);
return E_UNSPEC;
}
ap->ops|=AVPOPS_FLAG_CASTN;
break;
case 's':
case 'S':
if(ap->ops&AVPOPS_FLAG_CASTN)
{
LM_ERR("invalid flag combination <%c> and 'n|N'\n",*p);
return E_UNSPEC;
}
ap->ops|=AVPOPS_FLAG_CASTS;
break;
default:
LM_ERR("bad flag <%c>\n",*p);
return E_UNSPEC;
}
}
*param=(void*)ap;
}
return 0;
}
struct fis_param* parse_op_value(char *s)
{
struct fis_param *vp;
int ops;
int opd;
char *p;
char *t;
int len;
ops = 0;
opd = 0;
vp = 0;
if ( (p=strchr(s,'/'))==0 || (p-s!=2&&p-s!=3) )
goto parse_error;
/* get the operation */
if (strncasecmp(s,"add",3)==0) {
ops |= AVPOPS_OP_ADD;
} else if (strncasecmp(s,"sub",3)==0) {
ops |= AVPOPS_OP_SUB;
} else if (strncasecmp(s,"mul",3)==0) {
ops |= AVPOPS_OP_MUL;
} else if (strncasecmp(s,"div",3)==0) {
ops |= AVPOPS_OP_DIV;
} else if (strncasecmp(s,"mod",3)==0) {
ops |= AVPOPS_OP_MOD;
} else if (strncasecmp(s,"and",3)==0) {
ops |= AVPOPS_OP_BAND;
} else if (strncasecmp(s,"or",2)==0) {
ops |= AVPOPS_OP_BOR;
} else if (strncasecmp(s,"xor",3)==0) {
ops |= AVPOPS_OP_BXOR;
} else if (strncasecmp(s,"not",3)==0) {
ops |= AVPOPS_OP_BNOT;
} else {
LM_ERR("unknown operation <%.*s>\n",2,s);
goto error;
}
/* get the value */
if (*(++p)==0)
goto parse_error;
if ( (t=strchr(p,'/'))==0)
len = strlen(p);
else
len = t-p;
if (*p=='$')
{
/* is variable */
vp = avpops_parse_pvar(p);
if (vp==0)
{
LM_ERR("unable to get pseudo-variable\n");
goto error;
}
if (vp->u.sval.type==PVT_NULL)
{
LM_ERR("bad param; expected : $pseudo-variable or int/str value\n");
goto error;
}
opd |= AVPOPS_VAL_PVAR;
LM_DBG("flag==%d/%d\n", opd, ops);
} else {
/* value is explicitly given */
if ( (vp=parse_intstr_value(p,len))==0) {
LM_ERR("unable to parse value\n");
goto error;
}
if((vp->opd&AVPOPS_VAL_INT)==0) {
LM_ERR("value must be int\n");
goto error;
}
}
/* any flags */
p = t;
if (p!=0 && *p!=0 )
{
if (*p!='/' || *(++p)==0)
goto parse_error;
while (*p)
{
switch (*p)
{
case 'g':
case 'G':
ops|=AVPOPS_FLAG_ALL;
break;
case 'd':
case 'D':
ops|=AVPOPS_FLAG_DELETE;
break;
default:
LM_ERR("unknown flag <%c>\n",*p);
goto error;
}
p++;
}
}
vp->ops |= ops;
vp->opd |= opd;
return vp;
parse_error:
LM_ERR("parse error in <%s> pos %ld\n", s,(long)(p-s));
error:
if (vp) pkg_free(vp);
return 0;
}
struct fis_param* parse_check_value(char *s)
{
struct fis_param *vp;
int ops;
int opd;
char *p;
char *t;
int len;
ops = 0;
opd = 0;
vp = 0;
if ( (p=strchr(s,'/'))==0 || (p-s!=2&&p-s!=3) )
goto parse_error;
/* get the operation */
if (strncasecmp(s,"eq",2)==0) {
ops |= AVPOPS_OP_EQ;
} else if (strncasecmp(s,"ne",2)==0) {
ops |= AVPOPS_OP_NE;
} else if (strncasecmp(s,"lt",2)==0) {
ops |= AVPOPS_OP_LT;
} else if (strncasecmp(s,"le",2)==0) {
ops |= AVPOPS_OP_LE;
} else if (strncasecmp(s,"gt",2)==0) {
ops |= AVPOPS_OP_GT;
} else if (strncasecmp(s,"ge",2)==0) {
ops |= AVPOPS_OP_GE;
} else if (strncasecmp(s,"re",2)==0) {
ops |= AVPOPS_OP_RE;
} else if (strncasecmp(s,"fm",2)==0) {
ops |= AVPOPS_OP_FM;
} else if (strncasecmp(s,"and",3)==0) {
ops |= AVPOPS_OP_BAND;
} else if (strncasecmp(s,"or",2)==0) {
ops |= AVPOPS_OP_BOR;
} else if (strncasecmp(s,"xor",3)==0) {
ops |= AVPOPS_OP_BXOR;
} else {
LM_ERR("unknown operation <%.*s>\n",2,s);
goto error;
}
/* get the value */
if (*(++p)==0)
goto parse_error;
if ( (t=strchr(p,'/'))==0)
len = strlen(p);
else
len = t-p;
if (*p=='$')
{
/* is variable */
vp = avpops_parse_pvar(p);
if (vp==0)
{
LM_ERR("unable to get pseudo-variable\n");
goto error;
}
if (vp->u.sval.type==PVT_NULL)
{
LM_ERR("bad param; expected : $pseudo-variable or int/str value\n");
goto error;
}
opd |= AVPOPS_VAL_PVAR;
LM_DBG("flag==%d/%d\n", opd, ops);
} else {
/* value is explicitly given */
if ( (vp=parse_intstr_value(p,len))==0) {
LM_ERR("unable to parse value\n");
goto error;
}
}
p = t;
/* any flags */
if (p!=NULL && *p!=0)
{
if (*p!='/' || *(++p)==0)
goto parse_error;
while (*p)
{
switch (*p)
{
case 'g':
case 'G':
ops|=AVPOPS_FLAG_ALL;
break;
case 'i':
case 'I':
ops|=AVPOPS_FLAG_CI;
break;
default:
LM_ERR("unknown flag <%c>\n",*p);
goto error;
}
p++;
}
}
vp->ops |= ops;
vp->opd |= opd;
return vp;
parse_error:
LM_ERR("parse error in <%s> pos %ld\n", s,(long)(p-s));
error:
if (vp) pkg_free(vp);
return 0;
}