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DTLS Multicast

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Added an API so a session may be queried to see if it has seen any messages
from a specified peerId.
This commit is contained in:
John Safranek
2017-06-19 17:17:47 -07:00
parent 6223f4cd8e
commit 3329aa7bef
2 changed files with 30 additions and 0 deletions
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29
src/ssl.c
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@ -1024,6 +1024,35 @@ int wolfSSL_mcast_peer_add(WOLFSSL* ssl, word16 peerId, int remove)
}
/* If peerId is in the list of peers and its last sequence number is non-zero,
* return 1, otherwise return 0. */
int wolfSSL_mcast_peer_known(WOLFSSL* ssl, unsigned short peerId)
{
int known = 0;
int i;
WOLFSSL_ENTER("wolfSSL_mcast_peer_known()");
if (ssl == NULL || peerId > 255) {
return BAD_FUNC_ARG;
}
for (i = 0; i < WOLFSSL_DTLS_PEERSEQ_SZ; i++) {
if (ssl->keys.peerSeq[i].peerId == peerId) {
if (ssl->keys.peerSeq[i].nextSeq_hi ||
ssl->keys.peerSeq[i].nextSeq_lo) {
known = 1;
}
break;
}
}
WOLFSSL_LEAVE("wolfSSL_mcast_peer_known()", known);
return known;
}
int wolfSSL_CTX_mcast_set_highwater_cb(WOLFSSL_CTX* ctx, word32 maxSeq,
word32 first, word32 second,
CallbackMcastHighwater cb)

1
wolfssl/ssl.h
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@ -516,6 +516,7 @@ WOLFSSL_API int wolfSSL_set_secret(WOLFSSL*, unsigned short,
const unsigned char*);
WOLFSSL_API int wolfSSL_mcast_read(WOLFSSL*, unsigned short*, void*, int);
WOLFSSL_API int wolfSSL_mcast_peer_add(WOLFSSL*, unsigned short, int);
WOLFSSL_API int wolfSSL_mcast_peer_known(WOLFSSL*, unsigned short);
WOLFSSL_API int wolfSSL_mcast_get_max_peers(void);
typedef int (*CallbackMcastHighwater)(unsigned short peerId,
unsigned int maxSeq,