wsp_caps.c File Reference

#include "gwlib/gwlib.h"
#include "wsp_caps.h"

Go to the source code of this file.

Functions
static void	wsp_cap_destroy_item (void *cap)
Capability *	wsp_cap_create (int id, Octstr *name, Octstr *data)
void	wsp_cap_destroy (Capability *cap)
void	wsp_cap_dump (Capability *cap)
void	wsp_cap_dump_list (List *caps_list)
void	wsp_cap_destroy_list (List *caps_list)
List *	wsp_cap_duplicate_list (List *caps_list)
Capability *	wsp_cap_duplicate (Capability *cap)
List *	wsp_cap_unpack_list (Octstr *caps)
Octstr *	wsp_cap_pack_list (List *caps_list)
static int	wsp_cap_get_data (List *caps_list, int id, Octstr *name, Octstr **data)
int	wsp_cap_count (List *caps_list, int id, Octstr *name)
int	wsp_cap_get_client_sdu (List *caps_list, unsigned long *sdu)
int	wsp_cap_get_server_sdu (List *caps_list, unsigned long *sdu)
int	wsp_cap_get_method_mor (List *caps_list, unsigned long *mor)
int	wsp_cap_get_push_mor (List *caps_list, unsigned long *mor)

Function Documentation

wsp_cap_count()

int wsp_cap_count	(	List *	caps_list,
		int	id,
		Octstr *	name
	)

Definition at line 282 of file wsp_caps.c.

References name, and wsp_cap_get_data().

Referenced by refuse_unreplied_capabilities(), reply_known_capabilities(), and strip_default_capabilities().

                                                         {
    Octstr *data;

    return wsp_cap_get_data(caps_list, id, name, &data);
}

wsp_cap_create()

Capability* wsp_cap_create	(	int	id,
		Octstr *	name,
		Octstr *	data
	)

Definition at line 71 of file wsp_caps.c.

References capability::accept, capability::data, capability::id, capability::name, and name.

Referenced by refuse_unreplied_capabilities(), reply_known_capabilities(), wsp_cap_duplicate(), and wsp_cap_unpack_list().

                                                               {
    Capability *new_cap;

    new_cap = gw_malloc(sizeof(*new_cap));
    new_cap->id = id;
    new_cap->name = name;
    new_cap->data = data;
    new_cap->accept = 0;

    return new_cap;
}

wsp_cap_destroy()

void wsp_cap_destroy

(

Capability *

cap

)

Definition at line 83 of file wsp_caps.c.

References capability::data, capability::name, and octstr_destroy().

Referenced by sanitize_capabilities(), strip_default_capabilities(), and wsp_cap_destroy_item().

                                      {
    if (cap == NULL)
        return;

    octstr_destroy(cap->name);
    octstr_destroy(cap->data);
    gw_free(cap);
}

wsp_cap_destroy_item()

static void wsp_cap_destroy_item ( void *  cap )

static

Definition at line 66 of file wsp_caps.c.

References wsp_cap_destroy().

Referenced by wsp_cap_destroy_list().

                                            {
    wsp_cap_destroy(cap);
}

wsp_cap_destroy_list()

void wsp_cap_destroy_list

(

List *

caps_list

)

Definition at line 121 of file wsp_caps.c.

References gwlist_destroy(), and wsp_cap_destroy_item().

Referenced by make_connectreply_pdu().

                                           {
    gwlist_destroy(caps_list, wsp_cap_destroy_item);
}

wsp_cap_dump()

void wsp_cap_dump

(

Capability *

cap

)

Definition at line 92 of file wsp_caps.c.

References capability::accept, capability::data, debug(), capability::id, capability::name, and octstr_dump.

Referenced by sanitize_capabilities(), wsp_cap_dump_list(), and wsp_cap_pack_list().

                                   {
    debug("wsp", 0, "Dumping capability at %p:", cap);
    if (cap) {
        debug("wsp", 0, " id = %d", cap->id);
        debug("wsp", 0, " name:");
        octstr_dump(cap->name, 1);
        debug("wsp", 0, " data:");
        octstr_dump(cap->data, 1);
        if (cap->data == NULL)
            debug("wsp", 0, " accept: %d", cap->accept);
    }
    debug("wsp", 0, "Capability dump ends.");
}

wsp_cap_dump_list()

void wsp_cap_dump_list

(

List *

caps_list

)

Definition at line 106 of file wsp_caps.c.

References debug(), gwlist_get(), gwlist_len(), and wsp_cap_dump().

                                        {
    long i;

    if (caps_list == NULL) {
        debug("wsp", 0, "NULL capability list");
        return;
    }
    debug("wsp", 0, "Dumping capability list at %p, length %ld",
        caps_list, gwlist_len(caps_list));
    for (i = 0; i < gwlist_len(caps_list); i++) {
        wsp_cap_dump(gwlist_get(caps_list, i));
    }
    debug("wsp", 0, "End of capability list dump");
}

wsp_cap_duplicate()

Capability* wsp_cap_duplicate

(

Capability *

cap

)

Definition at line 142 of file wsp_caps.c.

References capability::accept, capability::data, capability::id, capability::name, octstr_duplicate, and wsp_cap_create().

Referenced by wsp_cap_duplicate_list().

                                               {
    Capability *new_cap;

    if (!cap)
        return NULL;

    new_cap = wsp_cap_create(cap->id,
                octstr_duplicate(cap->name),
                octstr_duplicate(cap->data));
    new_cap->accept = cap->accept;
    return new_cap;
}

wsp_cap_duplicate_list()

List* wsp_cap_duplicate_list

(

List *

caps_list

)

Definition at line 125 of file wsp_caps.c.

References gwlist_append(), gwlist_create, gwlist_get(), gwlist_len(), and wsp_cap_duplicate().

Referenced by indicate_push_connection(), make_capabilities_reply(), response_push_connection(), session_machine_create(), and update_session_data().

                                              {
    Capability *cap;
    List *new_list;
    long i;

    new_list = gwlist_create();

    if (caps_list == NULL)
        return new_list;

    for (i = 0; i < gwlist_len(caps_list); i++) {
        cap = gwlist_get(caps_list, i);
        gwlist_append(new_list, wsp_cap_duplicate(cap));
    }
    return new_list;
};

wsp_cap_get_client_sdu()

int wsp_cap_get_client_sdu	(	List *	caps_list,
		unsigned long *	sdu
	)

Definition at line 288 of file wsp_caps.c.

References found, octstr_extract_uintvar(), wsp_cap_get_data(), and WSP_CAPS_CLIENT_SDU_SIZE.

Referenced by reply_known_capabilities().

                                                                {
    Octstr *data;
    int found;

    found = wsp_cap_get_data(caps_list, WSP_CAPS_CLIENT_SDU_SIZE,
                    NULL, &data);
    if (found > 0 && octstr_extract_uintvar(data, sdu, 0) < 0)
        return -1;

    return found;
}

wsp_cap_get_data()

static int wsp_cap_get_data ( List *  caps_list, int  id, Octstr *  name, Octstr **  data  )

static

Definition at line 259 of file wsp_caps.c.

References capability::data, found, gwlist_get(), gwlist_len(), capability::id, capability::name, name, and octstr_compare().

Referenced by wsp_cap_count(), wsp_cap_get_client_sdu(), wsp_cap_get_method_mor(), wsp_cap_get_push_mor(), and wsp_cap_get_server_sdu().

                           {
    long i, len;
    Capability *cap;
    int found;

    len = gwlist_len(caps_list);
    found = 0;
    *data = NULL;
    for (i = 0; i < len; i++) {
        cap = gwlist_get(caps_list, i);
        if ((name && cap->name 
             && octstr_compare(name, cap->name) == 0)
            || (!name && cap->id == id)) {
            if (!found)
                *data = cap->data;
            found++;
        }
    }

    return found;
}

wsp_cap_get_method_mor()

int wsp_cap_get_method_mor	(	List *	caps_list,
		unsigned long *	mor
	)

Definition at line 312 of file wsp_caps.c.

References found, octstr_get_char(), wsp_cap_get_data(), and WSP_CAPS_METHOD_MOR.

Referenced by reply_known_capabilities().

                                                                {
    Octstr *data;
    int found;
    int c;

    found = wsp_cap_get_data(caps_list, WSP_CAPS_METHOD_MOR, NULL, &data);
    if (found > 0) {
        c = octstr_get_char(data, 0);
        if (c < 0)
            return -1;
        *mor = c;
    }
    
    return found;
}

wsp_cap_get_push_mor()

int wsp_cap_get_push_mor	(	List *	caps_list,
		unsigned long *	mor
	)

Definition at line 328 of file wsp_caps.c.

References found, octstr_get_char(), wsp_cap_get_data(), and WSP_CAPS_PUSH_MOR.

Referenced by reply_known_capabilities().

                                                              {
    Octstr *data;
    int found;
    int c;

    found = wsp_cap_get_data(caps_list, WSP_CAPS_PUSH_MOR, NULL, &data);
    if (found > 0) {
        c = octstr_get_char(data, 0);
        if (c < 0)
            return -1;
        *mor = c;
    }
    
    return found;
}

wsp_cap_get_server_sdu()

int wsp_cap_get_server_sdu	(	List *	caps_list,
		unsigned long *	sdu
	)

Definition at line 300 of file wsp_caps.c.

References found, octstr_extract_uintvar(), wsp_cap_get_data(), and WSP_CAPS_SERVER_SDU_SIZE.

Referenced by reply_known_capabilities().

                                                                {
    Octstr *data;
    int found;

    found = wsp_cap_get_data(caps_list, WSP_CAPS_SERVER_SDU_SIZE,
                    NULL, &data);
    if (found > 0 && octstr_extract_uintvar(data, sdu, 0) < 0)
        return -1;

    return found;
}

wsp_cap_pack_list()

Octstr* wsp_cap_pack_list

(

List *

caps_list

)

Definition at line 207 of file wsp_caps.c.

References capability::accept, capability::data, error(), gwlist_get(), gwlist_len(), capability::id, capability::name, octstr_append(), octstr_append_char(), octstr_append_uintvar(), octstr_create, octstr_get_char(), octstr_len(), octstr_search_char(), and wsp_cap_dump().

Referenced by make_connectreply_pdu().

                                           {
    Octstr *result;
    Capability *cap;
    long i, len;

    result = octstr_create("");
    len = gwlist_len(caps_list);
    for (i = 0; i < len; i++) {
        long datalen;

        cap = gwlist_get(caps_list, i);

        datalen = 0;
        if (cap->data)
            datalen = octstr_len(cap->data);

        if (datalen == 0 && cap->accept)
            continue;

        if (cap->name) {
            if (octstr_get_char(cap->name, 0) >= 0x80 ||
                octstr_search_char(cap->name, 0, 0) >= 0) {
                error(0, "WSP: Bad capability.");
                wsp_cap_dump(cap);
                continue;
            }
            /* Add length */
            octstr_append_uintvar(result,
                octstr_len(cap->name) + 1 + datalen);
            /* Add identifier */
            octstr_append(result, cap->name);
            octstr_append_char(result, 0);
        } else {
            if (cap->id >= 0x80 || cap->id < 0) {
                error(0, "WSP: Bad capability.");
                wsp_cap_dump(cap);
                continue;
            }
            /* Add length */
            octstr_append_uintvar(result, 1 + datalen);
            /* Add identifier */
            octstr_append_char(result, 0x80 | cap->id);
        }
        /* Add payload, if any */
        if (cap->data) {
            octstr_append(result, cap->data);
        }
    }

    return result;
}

wsp_cap_unpack_list()

List* wsp_cap_unpack_list

(

Octstr *

caps

)

Definition at line 155 of file wsp_caps.c.

References error(), gwlist_append(), gwlist_create, name, octstr_copy, octstr_extract_uintvar(), octstr_get_char(), octstr_len(), octstr_search_char(), warning(), and wsp_cap_create().

                                        {
    List *caps_list;
    long pos, capslen;

    caps_list = gwlist_create();
    if (caps == NULL)
        return caps_list;

    capslen = octstr_len(caps);
    pos = 0;
    while (pos < capslen) {
        unsigned long length;
        int id;
        Octstr *name;
        Octstr *data;

        pos = octstr_extract_uintvar(caps, &length, pos);
        if (pos < 0 || length == 0)
            goto error;

        id = octstr_get_char(caps, pos);
        if (id >= 0x80) {
            id &= 0x7f; /* It's encoded as a short-integer */
            name = NULL;
            data = octstr_copy(caps, pos + 1, length - 1);
        } else {
            long nullpos;
            id = -1;  /* It's encoded as token-text */
            nullpos = octstr_search_char(caps, 0, pos);
            if (nullpos < 0)
                            goto error;
                        /* check length
                         * FIXME: If it's not allowed that data is empty then change check
                         *        to <= .
                         */
                        if (length < (nullpos + 1 - pos))
                            goto error;
            name = octstr_copy(caps, pos, nullpos - pos);
            data = octstr_copy(caps, nullpos + 1,
                length - (nullpos + 1 - pos));
        }
        gwlist_append(caps_list, wsp_cap_create(id, name, data));
        pos += length;
    }

    return caps_list;

error:
    warning(0, "WSP: Error unpacking capabilities");
    return caps_list;
}