openssh/dist/kex.c

491 		error("too many SSH2_MSG_EXT_INFO messages sent by peer");
566 	sshbuf_reset(kex->peer);
627 	if ((r = sshbuf_put(kex->peer, ptr, dlen)) != 0)
677 	    (kex->peer = sshbuf_new()) == NULL ||
734 	sshbuf_free(kex->peer);
898 proposals_match(char *my[PROPOSAL_MAX], char *peer[PROPOSAL_MAX])
909 		if ((p = strchr(peer[*idx], ',')) != NULL)
911 		if (strcmp(my[*idx], peer[*idx]) != 0) {
912 			debug2("proposal mismatch: my %s peer %s",
913 			    my[*idx], peer[*idx]);
922 kexalgs_contains(char **peer, const char *ext)
924 	return kex_has_any_alg(peer[PROPOSAL_KEX_ALGS], ext);
932 	char **my = NULL, **peer = NULL;
942 	debug2("peer %s KEXINIT proposal", kex->server ? "client" : "server");
943 	if ((r = kex_buf2prop(kex->peer, &first_kex_follows, &peer)) != 0)
947 		cprop=peer;
951 		sprop=peer;
954 	/* Check whether peer supports ext_info/kex_strict */
957 			kex->ext_info_c = kexalgs_contains(peer, "ext-info-c");
958 			kex->kex_strict = kexalgs_contains(peer,
961 			kex->ext_info_s = kexalgs_contains(peer, "ext-info-s");
962 			kex->kex_strict = kexalgs_contains(peer,
976 		if (kex_has_any_alg(peer[PROPOSAL_SERVER_HOST_KEY_ALGS],
979 		if (kex_has_any_alg(peer[PROPOSAL_SERVER_HOST_KEY_ALGS],
987 		kex->failed_choice = peer[PROPOSAL_KEX_ALGS];
988 		peer[PROPOSAL_KEX_ALGS] = NULL;
993 		kex->failed_choice = peer[PROPOSAL_SERVER_HOST_KEY_ALGS];
994 		peer[PROPOSAL_SERVER_HOST_KEY_ALGS] = NULL;
1010 			kex->failed_choice = peer[nenc];
1011 			peer[nenc] = NULL;
1019 			kex->failed_choice = peer[nmac];
1020 			peer[nmac] = NULL;
1025 			kex->failed_choice = peer[ncomp];
1026 			peer[ncomp] = NULL;
1078 	if (first_kex_follows && !proposals_match(my, peer))
1083 	kex_prop_free(peer);
1240  * Send a plaintext error message to the peer, suffixed by \r\n.
1259  * Sends our identification string and waits for the peer's. Will block for