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[stg.git] / libs / smux / asn_codecs_prim.c

diff --git a/libs/smux/asn_codecs_prim.c b/libs/smux/asn_codecs_prim.c
index 4e5c63937adafc40a56b67fe5b3d9482220907d5..426339c94fa9789cac2e3a2c7342c04eba91ba34 100644 (file)
--- a/libs/smux/asn_codecs_prim.c
+++ b/libs/smux/asn_codecs_prim.c
@@ -15,14 +15,14 @@ ber_decode_primitive(asn_codec_ctx_t *opt_codec_ctx,
        void **sptr, const void *buf_ptr, size_t size, int tag_mode) {
        ASN__PRIMITIVE_TYPE_t *st = (ASN__PRIMITIVE_TYPE_t *)*sptr;
        asn_dec_rval_t rval;
        void **sptr, const void *buf_ptr, size_t size, int tag_mode) {
        ASN__PRIMITIVE_TYPE_t *st = (ASN__PRIMITIVE_TYPE_t *)*sptr;
        asn_dec_rval_t rval;

-       ber_tlv_len_t length;
+       ber_tlv_len_t length = 0; /* =0 to avoid [incorrect] warning. */

 
        /*
         * If the structure is not there, allocate it.
         */
        if(st == NULL) {
                st = (ASN__PRIMITIVE_TYPE_t *)CALLOC(1, sizeof(*st));
 
        /*
         * If the structure is not there, allocate it.
         */
        if(st == NULL) {
                st = (ASN__PRIMITIVE_TYPE_t *)CALLOC(1, sizeof(*st));

-               if(st == NULL) _ASN_DECODE_FAILED;
+               if(st == NULL) ASN__DECODE_FAILED;

                *sptr = (void *)st;
        }
 
                *sptr = (void *)st;
        }
 


@@ -55,13 +55,13 @@ ber_decode_primitive(asn_codec_ctx_t *opt_codec_ctx,
        if(sizeof(st->size) != sizeof(length)
                        && (ber_tlv_len_t)st->size != length) {
                st->size = 0;
        if(sizeof(st->size) != sizeof(length)
                        && (ber_tlv_len_t)st->size != length) {
                st->size = 0;

-               _ASN_DECODE_FAILED;
+               ASN__DECODE_FAILED;

        }
 
        st->buf = (uint8_t *)MALLOC(length + 1);
        if(!st->buf) {
                st->size = 0;
        }
 
        st->buf = (uint8_t *)MALLOC(length + 1);
        if(!st->buf) {
                st->size = 0;

-               _ASN_DECODE_FAILED;
+               ASN__DECODE_FAILED;

        }
 
        memcpy(st->buf, buf_ptr, length);
        }
 
        memcpy(st->buf, buf_ptr, length);


@@ -111,7 +111,7 @@ der_encode_primitive(asn_TYPE_descriptor_t *td, void *sptr,
        }
 
        erval.encoded += st->size;
        }
 
        erval.encoded += st->size;

-       _ASN_ENCODED_OK(erval);
+       ASN__ENCODED_OK(erval);

 }
 
 void
 }
 
 void


@@ -143,20 +143,26 @@ struct xdp_arg_s {
        int want_more;
 };
 
        int want_more;
 };
 

-
+/*
+ * Since some kinds of primitive values can be encoded using value-specific
+ * tags (<MINUS-INFINITY>, <enum-element>, etc), the primitive decoder must
+ * be supplied with such tags to parse them as needed.
+ */

 static int
 xer_decode__unexpected_tag(void *key, const void *chunk_buf, size_t chunk_size) {
        struct xdp_arg_s *arg = (struct xdp_arg_s *)key;
        enum xer_pbd_rval bret;
 
 static int
 xer_decode__unexpected_tag(void *key, const void *chunk_buf, size_t chunk_size) {
        struct xdp_arg_s *arg = (struct xdp_arg_s *)key;
        enum xer_pbd_rval bret;
 

-       if(arg->decoded_something) {
-               if(xer_is_whitespace(chunk_buf, chunk_size))
-                       return 0;       /* Skip it. */
-               /*
-                * Decoding was done once already. Prohibit doing it again.
-                */
+       /*
+        * The chunk_buf is guaranteed to start at '<'.
+        */
+       assert(chunk_size && ((const char *)chunk_buf)[0] == 0x3c);
+
+       /*
+        * Decoding was performed once already. Prohibit doing it again.
+        */
+       if(arg->decoded_something)

                return -1;
                return -1;

-       }

 
        bret = arg->prim_body_decoder(arg->type_descriptor,
                arg->struct_key, chunk_buf, chunk_size);
 
        bret = arg->prim_body_decoder(arg->type_descriptor,
                arg->struct_key, chunk_buf, chunk_size);


@@ -177,13 +183,20 @@ xer_decode__unexpected_tag(void *key, const void *chunk_buf, size_t chunk_size)
 }
 
 static ssize_t
 }
 
 static ssize_t

-xer_decode__body(void *key, const void *chunk_buf, size_t chunk_size, int have_more) {
+xer_decode__primitive_body(void *key, const void *chunk_buf, size_t chunk_size, int have_more) {

        struct xdp_arg_s *arg = (struct xdp_arg_s *)key;
        enum xer_pbd_rval bret;
        struct xdp_arg_s *arg = (struct xdp_arg_s *)key;
        enum xer_pbd_rval bret;

+       size_t lead_wsp_size;

 
        if(arg->decoded_something) {
 
        if(arg->decoded_something) {

-               if(xer_is_whitespace(chunk_buf, chunk_size))
+               if(xer_whitespace_span(chunk_buf, chunk_size) == chunk_size) {
+                       /*
+                        * Example:
+                        * "<INTEGER>123<!--/--> </INTEGER>"
+                        *                      ^- chunk_buf position.
+                        */

                        return chunk_size;
                        return chunk_size;

+               }

                /*
                 * Decoding was done once already. Prohibit doing it again.
                 */
                /*
                 * Decoding was done once already. Prohibit doing it again.
                 */


@@ -203,6 +216,10 @@ xer_decode__body(void *key, const void *chunk_buf, size_t chunk_size, int have_m
                return -1;
        }
 
                return -1;
        }
 

+       lead_wsp_size = xer_whitespace_span(chunk_buf, chunk_size);
+       chunk_buf = (const char *)chunk_buf + lead_wsp_size;
+       chunk_size -= lead_wsp_size;
+

        bret = arg->prim_body_decoder(arg->type_descriptor,
                arg->struct_key, chunk_buf, chunk_size);
        switch(bret) {
        bret = arg->prim_body_decoder(arg->type_descriptor,
                arg->struct_key, chunk_buf, chunk_size);
        switch(bret) {


@@ -215,7 +232,7 @@ xer_decode__body(void *key, const void *chunk_buf, size_t chunk_size, int have_m
                arg->decoded_something = 1;
                /* Fall through */
        case XPBD_NOT_BODY_IGNORE:      /* Safe to proceed further */
                arg->decoded_something = 1;
                /* Fall through */
        case XPBD_NOT_BODY_IGNORE:      /* Safe to proceed further */

-               return chunk_size;
+               return lead_wsp_size + chunk_size;

        }
 
        return -1;
        }
 
        return -1;


@@ -241,7 +258,7 @@ xer_decode_primitive(asn_codec_ctx_t *opt_codec_ctx,
         */
        if(!*sptr) {
                *sptr = CALLOC(1, struct_size);
         */
        if(!*sptr) {
                *sptr = CALLOC(1, struct_size);

-               if(!*sptr) _ASN_DECODE_FAILED;
+               if(!*sptr) ASN__DECODE_FAILED;

        }
 
        memset(&s_ctx, 0, sizeof(s_ctx));
        }
 
        memset(&s_ctx, 0, sizeof(s_ctx));


@@ -253,7 +270,7 @@ xer_decode_primitive(asn_codec_ctx_t *opt_codec_ctx,
 
        rc = xer_decode_general(opt_codec_ctx, &s_ctx, &s_arg,
                xml_tag, buf_ptr, size,
 
        rc = xer_decode_general(opt_codec_ctx, &s_ctx, &s_arg,
                xml_tag, buf_ptr, size,

-               xer_decode__unexpected_tag, xer_decode__body);
+               xer_decode__unexpected_tag, xer_decode__primitive_body);

        switch(rc.code) {
        case RC_OK:
                if(!s_arg.decoded_something) {
        switch(rc.code) {
        case RC_OK:
                if(!s_arg.decoded_something) {


@@ -271,7 +288,7 @@ xer_decode_primitive(asn_codec_ctx_t *opt_codec_ctx,
                                /*
                                 * This decoder does not like empty stuff.
                                 */
                                /*
                                 * This decoder does not like empty stuff.
                                 */

-                               _ASN_DECODE_FAILED;
+                               ASN__DECODE_FAILED;

                        }
                }
                break;
                        }
                }
                break;


@@ -287,7 +304,7 @@ xer_decode_primitive(asn_codec_ctx_t *opt_codec_ctx,
                if(s_arg.want_more)
                        rc.code = RC_WMORE;
                else
                if(s_arg.want_more)
                        rc.code = RC_WMORE;
                else

-                       _ASN_DECODE_FAILED;
+                       ASN__DECODE_FAILED;

                break;
        }
        return rc;
                break;
        }
        return rc;