/* UPDATED + CHECKED
*/
static inline char *run_sub( struct cpl_interpreter *intr )
{
char *p;
unsigned short offset;
unsigned short attr_name;
int i;
/* sanity check */
if (NR_OF_KIDS(intr->ip)!=0) {
LOG(L_ERR,"ERROR:cpl_c:run_sub: SUB node doesn't suppose to have any "
"sub-nodes. Found %d!\n",NR_OF_KIDS(intr->ip));
goto script_error;
}
/* check the number of attr */
i = NR_OF_ATTR( intr->ip );
if (i!=1) {
LOG(L_ERR,"ERROR:cpl_c:run_sub: incorrect nr. of attr. %d (<>1) in "
"SUB node\n",i);
goto script_error;
}
/* get attr's name */
p = ATTR_PTR(intr->ip);
get_basic_attr( p, attr_name, offset, intr, script_error);
if (attr_name!=REF_ATTR) {
LOG(L_ERR,"ERROR:cpl_c:run_sub: invalid attr. %d (expected %d)in "
"SUB node\n", attr_name, REF_ATTR);
goto script_error;
}
/* make the jump */
p = intr->ip - offset;
/* check the destination pointer -> are we still inside the buffer ;-) */
if (((char*)p)<intr->script.s) {
LOG(L_ERR,"ERROR:cpl_c:run_sub: jump offset lower than the script "
"beginning -> underflow!\n");
goto script_error;
}
check_overflow_by_ptr( p+SIMPLE_NODE_SIZE(intr->ip), intr, script_error);
/* check to see if we hit a subaction node */
if ( NODE_TYPE(p)!=SUBACTION_NODE ) {
LOG(L_ERR,"ERROR:cpl_c:run_sub: sub. jump hit a nonsubaction node!\n");
goto script_error;
}
if ( NR_OF_ATTR(p)!=0 ) {
LOG(L_ERR,"ERROR:cpl_c:run_sub: inavlid subaction node reached "
"(attrs=%d); expected (0)!\n",NR_OF_ATTR(p));
goto script_error;
}
return get_first_child(p);
script_error:
return CPL_SCRIPT_ERROR;
}
/* UPDATED + CHECKED
*/
static inline char *run_remove_location( struct cpl_interpreter *intr )
{
unsigned short attr_name;
unsigned short n;
char *p;
str url;
int i;
url.s = (char*)UNDEF_CHAR;
/* sanity check */
if (NR_OF_KIDS(intr->ip)>1) {
LOG(L_ERR,"ERROR:cpl_c:run_remove_location: REMOVE_LOCATION node "
"suppose to have max one child, not %d!\n",
NR_OF_KIDS(intr->ip));
goto script_error;
}
/* dirty hack to speed things up in when loc set is already empty */
if (intr->loc_set==0)
goto done;
for( i=NR_OF_ATTR(intr->ip),p=ATTR_PTR(intr->ip) ; i>0 ; i-- ) {
get_basic_attr(p,attr_name,n,intr,script_error);
switch (attr_name) {
case LOCATION_ATTR:
url.len = n;
get_str_attr( p, url.s, url.len, intr, script_error,1);
break;
default:
LOG(L_ERR,"ERROR:run_remove_location: unknown attribute "
"(%d) in REMOVE_LOCATION node\n",attr_name);
goto script_error;
}
}
if (url.s==(char*)UNDEF_CHAR) {
DBG("DEBUG:run_remove_location: remove all locs from loc_set\n");
empty_location_set( &(intr->loc_set) );
} else {
remove_location( &(intr->loc_set), url.s, url.len );
}
/* set the flag for modifing the location set */
intr->flags |= CPL_LOC_SET_MODIFIED;
done:
return get_first_child(intr->ip);
script_error:
return CPL_SCRIPT_ERROR;
}
/* UPDATED + CHECKED
*/
static inline char *run_cpl_node( struct cpl_interpreter *intr )
{
char *kid;
unsigned char start;
int i;
start = (intr->flags&CPL_RUN_INCOMING)?INCOMING_NODE:OUTGOING_NODE;
/* look for the starting node (incoming or outgoing) */
for(i=0;i<NR_OF_KIDS(intr->ip);i++) {
kid= intr->ip + KID_OFFSET(intr->ip,i);
if ( NODE_TYPE(kid)==start ) {
return get_first_child(kid);
} else
if (NODE_TYPE(kid)==SUBACTION_NODE ||
NODE_TYPE(kid)==ANCILLARY_NODE ||
NODE_TYPE(kid)==INCOMING_NODE ||
NODE_TYPE(kid)==OUTGOING_NODE ) {
continue;
} else {
LM_ERR("unknown child type (%d) "
"for CPL node!!\n",NODE_TYPE(kid));
return CPL_SCRIPT_ERROR;
}
}
LM_DBG("CPL node has no %d subnode -> default\n", start);
return DEFAULT_ACTION;
}
/* UPDATED + CHECKED
*/
static inline char *run_mail( struct cpl_interpreter *intr )
{
unsigned short attr_name;
unsigned short n;
char *p;
str subject = {0,0};
str body = {0,0};
str to = {0,0};
int i;
/* sanity check */
if (NR_OF_KIDS(intr->ip)>1) {
LM_ERR("MAIL node suppose to have max one"
" child, not %d!\n",NR_OF_KIDS(intr->ip));
goto script_error;
}
/* read the attributes of the MAIL node*/
for( i=NR_OF_ATTR(intr->ip),p=ATTR_PTR(intr->ip) ; i>0 ; i-- ) {
get_basic_attr(p, attr_name, n, intr, script_error);
switch (attr_name) {
case TO_ATTR:
get_str_attr(p, to.s, n, intr, script_error,0);
to.len = n;
break;
case SUBJECT_ATTR:
get_str_attr(p, subject.s, n, intr, script_error,0);
subject.len = n;
break;
case BODY_ATTR:
get_str_attr(p, body.s, n, intr, script_error,0);
body.len = n;
break;
default:
LM_ERR("unknown attribute (%d) in MAIL node\n",attr_name);
goto script_error;
}
}
if (to.len==0) {
LM_ERR("email has an empty TO hdr!\n");
goto script_error;
}
if (body.len==0 && subject.len==0) {
LM_WARN("I refuse to send email with no "
"body and no subject -> skipping...\n");
goto done;
}
/* duplicate the attrs in shm memory */
p = (char*)shm_malloc( to.len + subject.len + body.len );
if (!p) {
LM_ERR("no more shm memory!\n");
goto runtime_error;
}
/* copy the TO */
memcpy( p, to.s, to.len );
to.s = p;
p += to.len;
/* copy the subject */
if (subject.len) {
memcpy( p, subject.s, subject.len );
subject.s = p;
p += subject.len;
}
/* copy the body */
if (body.len) {
memcpy( p, body.s, body.len );
body.s = p;
p += body.len;
}
/* send the command */
write_cpl_cmd( CPL_MAIL_CMD, &to, &subject, &body);
done:
return get_first_child(intr->ip);
runtime_error:
return CPL_RUNTIME_ERROR;
script_error:
return CPL_SCRIPT_ERROR;
}
/* UPDATED + CHECKED
*/
static inline char *run_log( struct cpl_interpreter *intr )
{
char *p;
unsigned short attr_name;
unsigned short n;
str name = {0,0};
str comment = {0,0};
str user;
int i;
/* sanity check */
if (NR_OF_KIDS(intr->ip)>1) {
LM_ERR("LOG node suppose to have max one child"
", not %d!\n",NR_OF_KIDS(intr->ip));
goto script_error;
}
/* is logging enabled? */
if ( cpl_env.log_dir==0 )
goto done;
/* read the attributes of the LOG node*/
p = ATTR_PTR(intr->ip);
for( i=NR_OF_ATTR(intr->ip); i>0 ; i-- ) {
get_basic_attr( p, attr_name, n, intr, script_error);
switch (attr_name) {
case NAME_ATTR:
get_str_attr( p, name.s, n, intr, script_error,1);
name.len = n;
break;
case COMMENT_ATTR:
get_str_attr( p, comment.s, n, intr, script_error,1);
comment.len = n;
break;
default:
LM_ERR("unknown attribute "
"(%d) in LOG node\n",attr_name);
goto script_error;
}
}
if (comment.len==0) {
LM_NOTICE("LOG node has no comment attr -> skipping\n");
goto done;
}
user.len = intr->user.len + name.len + comment.len;
/* duplicate the attrs in shm memory */
user.s = p = (char*)shm_malloc( user.len );
if (!user.s) {
LM_ERR("no more shm memory!\n");
goto runtime_error;
}
/* copy the user name */
memcpy( p, intr->user.s, intr->user.len);
user.len = intr->user.len;
p += intr->user.len;
/* copy the log name */
if (name.len) {
memcpy( p, name.s, name.len );
name.s = p;
p += name.len;
}
/* copy the comment */
memcpy( p, comment.s, comment.len);
comment.s = p;
/* send the command */
write_cpl_cmd( CPL_LOG_CMD, &user, &name, &comment );
done:
return get_first_child(intr->ip);
runtime_error:
return CPL_RUNTIME_ERROR;
script_error:
return CPL_SCRIPT_ERROR;
}
/* UPDATED + CHECKED
*/
static inline char *run_redirect( struct cpl_interpreter *intr )
{
struct location *loc;
struct lump_rpl *lump;
unsigned short attr_name;
unsigned short permanent;
unsigned short n;
char *p;
str lump_str;
char *cp;
int i;
permanent = NO_VAL;
/* sanity check */
if (NR_OF_KIDS(intr->ip)!=0) {
LM_ERR("REDIRECT node doesn't suppose "
"to have any sub-nodes. Found %d!\n",NR_OF_KIDS(intr->ip));
goto script_error;
}
/* read the attributes of the REDIRECT node*/
for( i=NR_OF_ATTR(intr->ip),p=ATTR_PTR(intr->ip) ; i>0 ; i-- ) {
get_basic_attr( p, attr_name, n, intr, script_error);
switch (attr_name) {
case PERMANENT_ATTR:
if (n!=YES_VAL && n!=NO_VAL) {
LM_ERR("unsupported value (%d)"
" in attribute PERMANENT for REDIRECT node",n);
goto script_error;
}
permanent = n;
break;
default:
LM_ERR("unknown attribute "
"(%d) in REDIRECT node\n",attr_name);
goto script_error;
}
}
/* build the lump for Contact header */
lump_str.len = 9 /*"Contact: "*/;
for(loc=intr->loc_set;loc;loc=loc->next)
lump_str.len += 1/*"<"*/ + loc->addr.uri.len + 7/*">;q=x.x"*/ +
2*(loc->next!=0)/*" ,"*/;
lump_str.len += CRLF_LEN;
lump_str.s = pkg_malloc( lump_str.len );
if(!lump_str.s) {
LM_ERR("out of pkg memory!\n");
goto runtime_error;
}
cp = lump_str.s;
memcpy( cp , "Contact: " , 9);
cp += 9;
for(loc=intr->loc_set;loc;loc=loc->next) {
*(cp++) = '<';
memcpy(cp,loc->addr.uri.s,loc->addr.uri.len);
cp += loc->addr.uri.len;
memcpy(cp,">;q=",4);
cp += 4;
*(cp++) = (loc->addr.priority!=10)?'0':'1';
*(cp++) = '.';
*(cp++) = '0'+(loc->addr.priority%10);
if (loc->next) {
*(cp++) = ' ';
*(cp++) = ',';
}
}
memcpy(cp,CRLF,CRLF_LEN);
/* if still stateless and FORCE_STATEFUL set -> build the transaction */
if ( !(intr->flags&CPL_IS_STATEFUL) && intr->flags&CPL_FORCE_STATEFUL) {
i = cpl_fct.tmb.t_newtran( intr->msg );
if (i<0) {
LM_ERR("failed to build new transaction!\n");
pkg_free( lump_str.s );
goto runtime_error;
} else if (i==0) {
LM_ERR("processed INVITE is a retransmission!\n");
/* instead of generating an error is better just to break the
* script by returning EO_SCRIPT */
pkg_free( lump_str.s );
return EO_SCRIPT;
}
intr->flags |= CPL_IS_STATEFUL;
}
/* add the lump to the reply */
lump = add_lump_rpl( intr->msg, lump_str.s , lump_str.len , LUMP_RPL_HDR);
if(!lump) {
LM_ERR("unable to add lump_rpl! \n");
pkg_free( lump_str.s );
goto runtime_error;
}
/* send the reply */
if (permanent)
i = cpl_fct.slb.freply( intr->msg,301,&cpl_301_reason);
else
i = cpl_fct.slb.freply( intr->msg,302,&cpl_302_reason);
/* msg which I'm working on can be in private memory or is a clone into
* shared memory (if I'm after a failed proxy); So, it's better to removed
* by myself the lump that I added previously */
unlink_lump_rpl( intr->msg, lump);
free_lump_rpl( lump );
if (i!=1) {
LM_ERR("unable to send redirect reply!\n");
goto runtime_error;
}
return EO_SCRIPT;
runtime_error:
return CPL_RUNTIME_ERROR;
script_error:
return CPL_SCRIPT_ERROR;
}
/* UPDATED + CHECKED
*/
static inline char *run_reject( struct cpl_interpreter *intr )
{
unsigned short attr_name;
unsigned short status;
unsigned short n;
str reason;
char *p;
int i;
reason.s = (char*)UNDEF_CHAR;
status = UNDEF_CHAR;
/* sanity check */
if (NR_OF_KIDS(intr->ip)!=0) {
LM_ERR("REJECT node doesn't suppose to have "
"any sub-nodes. Found %d!\n",NR_OF_KIDS(intr->ip));
goto script_error;
}
for( i=NR_OF_ATTR(intr->ip),p=ATTR_PTR(intr->ip) ; i>0 ; i-- ) {
get_basic_attr( p, attr_name, n, intr, script_error);
switch (attr_name) {
case STATUS_ATTR:
status = n;
break;
case REASON_ATTR:
reason.len = n;
get_str_attr( p, reason.s, reason.len, intr, script_error,1);
break;
default:
LM_ERR("unknown attribute "
"(%d) in REJECT node\n",attr_name);
goto script_error;
}
}
if (status==UNDEF_CHAR) {
LM_ERR("mandatory attribute STATUS not found\n");
goto script_error;
}
if (status<400 || status>=700) {
LM_ERR("bad attribute STATUS (%d)\n",status);
goto script_error;
}
if (reason.s==(char*)UNDEF_CHAR ) {
switch (status) {
case 486:
reason.s = "Busy Here";
reason.len = 9;
break;
case 404:
reason.s = "Not Found";
reason.len = 9;
break;
case 603:
reason.s = "Decline";
reason.len = 7;
break;
case 500:
reason.s = "Internal Server Error";
reason.len = 21;
break;
default:
reason.s = "Generic Error";
reason.len = 13;
}
}
/* if still stateless and FORCE_STATEFUL set -> build the transaction */
if ( !(intr->flags&CPL_IS_STATEFUL) && intr->flags&CPL_FORCE_STATEFUL) {
i = cpl_fct.tmb.t_newtran( intr->msg );
if (i<0) {
LM_ERR("failed to build new transaction!\n");
goto runtime_error;
} else if (i==0) {
LM_ERR(" processed INVITE is a retransmission!\n");
/* instead of generating an error is better just to break the
* script by returning EO_SCRIPT */
return EO_SCRIPT;
}
intr->flags |= CPL_IS_STATEFUL;
}
/* send the reply */
i = cpl_fct.slb.freply(intr->msg, (int)status, &reason );
if ( i!=1 ) {
LM_ERR("unable to send reject reply!\n");
goto runtime_error;
}
return EO_SCRIPT;
runtime_error:
return CPL_RUNTIME_ERROR;
script_error:
return CPL_SCRIPT_ERROR;
}
/* UPDATED + CHECKED
*/
static inline char *run_location( struct cpl_interpreter *intr )
{
unsigned short attr_name;
unsigned short n;
char *p;
unsigned char prio;
unsigned char clear;
str url;
int i;
clear = NO_VAL;
prio = 10;
url.s = (char*)UNDEF_CHAR;
url.len = 0;
/* sanity check */
if (NR_OF_KIDS(intr->ip)>1) {
LM_ERR("LOCATION node suppose to have max "
"one child, not %d!\n",NR_OF_KIDS(intr->ip));
goto script_error;
}
for( i=NR_OF_ATTR(intr->ip),p=ATTR_PTR(intr->ip) ; i>0 ; i-- ) {
get_basic_attr(p,attr_name,n,intr,script_error);
switch (attr_name) {
case URL_ATTR:
url.len = n;
get_str_attr( p, url.s, url.len, intr, script_error,1);
break;
case PRIORITY_ATTR:
if ( n>10)
LM_WARN("invalid value (%u) found"
" for param. PRIORITY in LOCATION node -> using "
"default (%u)!\n",n,prio);
else
prio = n;
break;
case CLEAR_ATTR:
if (n!=YES_VAL && n!=NO_VAL)
LM_WARN("invalid value (%u) found"
" for param. CLEAR in LOCATION node -> using "
"default (%u)!\n",n,clear);
else
clear = n;
break;
default:
LM_ERR("unknown attribute (%d) in "
"LOCATION node\n",attr_name);
goto script_error;
}
}
if (url.s==(char*)UNDEF_CHAR) {
LM_ERR("param. URL missing in LOCATION node\n");
goto script_error;
}
if (clear)
empty_location_set( &(intr->loc_set) );
if (add_location( &(intr->loc_set), &url, 0, prio, 0/*no dup*/ )==-1) {
LM_ERR("unable to add location to set :-(\n");
goto runtime_error;
}
/* set the flag for modifying the location set */
intr->flags |= CPL_LOC_SET_MODIFIED;
return get_first_child(intr->ip);
runtime_error:
return CPL_RUNTIME_ERROR;
script_error:
return CPL_SCRIPT_ERROR;
}
/* UPDATED + CHECKED
*/
static inline char *run_lookup( struct cpl_interpreter *intr )
{
unsigned short attr_name;
unsigned short n;
unsigned char clear;
char *p;
char *kid;
char *failure_kid = 0;
char *success_kid = 0;
char *notfound_kid = 0;
int i;
time_t tc;
urecord_t* r;
ucontact_t* contact;
clear = NO_VAL;
/* check the params */
for( i=NR_OF_ATTR(intr->ip),p=ATTR_PTR(intr->ip) ; i>0 ; i-- ) {
get_basic_attr(p,attr_name,n,intr,script_error);
switch (attr_name) {
case CLEAR_ATTR:
if (n!=YES_VAL && n!=NO_VAL)
LM_WARN("invalid value (%u) found"
" for param. CLEAR in LOOKUP node -> using "
"default (%u)!\n",n,clear);
else
clear = n;
break;
default:
LM_ERR("unknown attribute (%d) in LOOKUP node\n",attr_name);
goto script_error;
}
}
/* check the kids */
for( i=0 ; i<NR_OF_KIDS(intr->ip) ; i++ ) {
kid = intr->ip + KID_OFFSET(intr->ip,i);
check_overflow_by_ptr( kid+SIMPLE_NODE_SIZE(kid), intr, script_error);
switch ( NODE_TYPE(kid) ) {
case SUCCESS_NODE :
success_kid = kid;
break;
case NOTFOUND_NODE:
notfound_kid = kid;
break;
case FAILURE_NODE:
failure_kid = kid;
break;
default:
LM_ERR("unknown output node type"
" (%d) for LOOKUP node\n",NODE_TYPE(kid));
goto script_error;
}
}
kid = failure_kid;
if (cpl_env.lu_domain) {
/* fetch user's contacts via usrloc */
tc = time(0);
cpl_fct.ulb.lock_udomain( cpl_env.lu_domain, &intr->user );
i = cpl_fct.ulb.get_urecord( cpl_env.lu_domain, &intr->user, &r);
if (i < 0) {
/* failure */
LM_ERR("failed to query usrloc\n");
cpl_fct.ulb.unlock_udomain( cpl_env.lu_domain, &intr->user );
} else if (i > 0) {
/* not found */
LM_DBG("'%.*s' Not found in usrloc\n",
intr->user.len, intr->user.s);
cpl_fct.ulb.unlock_udomain( cpl_env.lu_domain, &intr->user );
kid = notfound_kid;
} else {
contact = r->contacts;
/* skip expired contacts */
while ((contact) && (contact->expires <= tc))
contact = contact->next;
/* any contacts left? */
if (contact) {
/* clear loc set if requested */
if (clear)
empty_location_set( &(intr->loc_set) );
/* start adding locations to set */
do {
LM_DBG("adding <%.*s>q=%d\n",
contact->c.len,contact->c.s,(int)(10*contact->q));
if (add_location( &(intr->loc_set), &contact->c,
&contact->received, (int)(10*contact->q),
CPL_LOC_DUPL|
((contact->cflags&cpl_fct.ulb.nat_flag)?CPL_LOC_NATED:0)
)==-1) {
LM_ERR("unable to add location to set :-(\n");
cpl_fct.ulb.unlock_udomain( cpl_env.lu_domain, &intr->user );
goto runtime_error;
}
contact = contact->next;
}while( contact && cpl_env.lu_append_branches);
/* set the flag for modifying the location set */
intr->flags |= CPL_LOC_SET_MODIFIED;
/* we found a valid contact */
kid = success_kid;
} else {
/* no valid contact found */
kid = notfound_kid;
}
cpl_fct.ulb.unlock_udomain( cpl_env.lu_domain, &intr->user );
}
}
if (kid)
return get_first_child(kid);
return DEFAULT_ACTION;
runtime_error:
return CPL_RUNTIME_ERROR;
script_error:
return CPL_SCRIPT_ERROR;
}
