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Merge pull request #11386 from chrysn-pull-requests/nanocoap-add-opaque

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nanocoap: Support adding opaque (blob / buffer) data
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Ken Bannister 2019-04-12 23:47:35 -04:00 committed by GitHub
commit a4b909dba4
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2 changed files with 25 additions and 3 deletions
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19
sys/include/net/nanocoap.h
View File

@ -463,7 +463,7 @@ void coap_pkt_init(coap_pkt_t *pkt, uint8_t *buf, size_t len, size_t header_len)
*
* @returns amount of bytes written to @p buf
*/
size_t coap_put_option(uint8_t *buf, uint16_t lastonum, uint16_t onum, uint8_t *odata, size_t olen);
size_t coap_put_option(uint8_t *buf, uint16_t lastonum, uint16_t onum, const uint8_t *odata, size_t olen);
/**
* @brief Insert content type option into buffer
@ -656,6 +656,23 @@ size_t coap_put_block1_ok(uint8_t *pkt_pos, coap_block1_t *block1, uint16_t last
*/
ssize_t coap_opt_add_string(coap_pkt_t *pkt, uint16_t optnum, const char *string, char separator);
/**
* @brief Encode the given buffer as an opaque data option into pkt
*
* @post pkt.payload advanced to first byte after option(s)
* @post pkt.payload_len reduced by option(s) length
*
* @param[in,out] pkt pkt referencing target buffer
* @param[in] optnum option number to use
* @param[in] val pointer to the value to be set
* @param[in] val_len length of val
*
* @return number of bytes written to buffer
* @return <0 on error
* @return -ENOSPC if no available options
*/
ssize_t coap_opt_add_opaque(coap_pkt_t *pkt, uint16_t optnum, const uint8_t *val, size_t val_len);
/**
* @brief Encode the given uint option into pkt
*

9
sys/net/application_layer/nanocoap/nanocoap.c
View File

@ -566,7 +566,7 @@ static unsigned _put_delta_optlen(uint8_t *buf, unsigned offset, unsigned shift,
return offset;
}
size_t coap_put_option(uint8_t *buf, uint16_t lastonum, uint16_t onum, uint8_t *odata, size_t olen)
size_t coap_put_option(uint8_t *buf, uint16_t lastonum, uint16_t onum, const uint8_t *odata, size_t olen)
{
assert(lastonum <= onum);
@ -728,7 +728,7 @@ size_t coap_opt_put_string(uint8_t *buf, uint16_t lastonum, uint16_t optnum,
}
/* Common functionality for addition of an option */
static ssize_t _add_opt_pkt(coap_pkt_t *pkt, uint16_t optnum, uint8_t *val,
static ssize_t _add_opt_pkt(coap_pkt_t *pkt, uint16_t optnum, const uint8_t *val,
size_t val_len)
{
if (pkt->options_len >= NANOCOAP_NOPTS_MAX) {
@ -802,6 +802,11 @@ ssize_t coap_opt_add_string(coap_pkt_t *pkt, uint16_t optnum, const char *string
return write_len;
}
ssize_t coap_opt_add_opaque(coap_pkt_t *pkt, uint16_t optnum, const uint8_t *val, size_t val_len)
{
return _add_opt_pkt(pkt, optnum, val, val_len);
}
ssize_t coap_opt_add_uint(coap_pkt_t *pkt, uint16_t optnum, uint32_t value)
{
uint32_t tmp = value;