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TLV: add function to patch a tlv definition table

This commit is contained in:
Harald Welte 2010-01-10 17:45:23 +01:00
parent 6e670aab5a
commit 5078148829
2 changed files with 16 additions and 0 deletions
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3
openbsc/include/openbsc/tlv.h
View File

@ -185,6 +185,7 @@ struct tlv_p_entry {
};
enum tlv_type {
TLV_TYPE_NONE,
TLV_TYPE_FIXED,
TLV_TYPE_T,
TLV_TYPE_TV,
@ -213,6 +214,8 @@ int tlv_parse_one(u_int8_t *o_tag, u_int16_t *o_len, const u_int8_t **o_val,
const u_int8_t *buf, int buf_len);
int tlv_parse(struct tlv_parsed *dec, const struct tlv_definition *def,
const u_int8_t *buf, int buf_len, u_int8_t lv_tag, u_int8_t lv_tag2);
/* take a master (src) tlvdev and fill up all empty slots in 'dst' */
void tlv_def_patch(struct tlv_definition *dst, const struct tlv_definition *src);
#define TLVP_PRESENT(x, y) ((x)->lv[y].val)
#define TLVP_LEN(x, y) (x)->lv[y].len

13
openbsc/src/tlv_parser.c
View File

@ -149,6 +149,19 @@ int tlv_parse(struct tlv_parsed *dec, const struct tlv_definition *def,
return num_parsed;
}
/* take a master (src) tlvdev and fill up all empty slots in 'dst' */
void tlv_def_patch(struct tlv_definition *dst, const struct tlv_definition *src)
{
int i;
for (i = 0; i < ARRAY_SIZE(dst->def); i++) {
if (src->def[i].type == TLV_TYPE_NONE)
continue;
if (dst->def[i].type == TLV_TYPE_NONE)
dst->def[i] = src->def[i];
}
}
static __attribute__((constructor)) void on_dso_load_tlv(void)
{
int i;