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-rw-r--r--code/vconn/vconn.c207
1 files changed, 147 insertions, 60 deletions
diff --git a/code/vconn/vconn.c b/code/vconn/vconn.c
index 740f400..dadff0f 100644
--- a/code/vconn/vconn.c
+++ b/code/vconn/vconn.c
@@ -70,10 +70,18 @@ static void vconn_destroy(ECPConnection *conn) {
}
static ssize_t _vconn_send_open(ECPConnection *conn, ECPTimerItem *ti) {
- unsigned char payload[ECP_SIZE_PLD(0, 0)];
+ ECPBuffer packet;
+ ECPBuffer payload;
+ unsigned char pkt_buf[ECP_SIZE_PKT_BUF(0, ECP_MTYPE_KGET_REQ, conn)];
+ unsigned char pld_buf[ECP_SIZE_PLD_BUF(0, ECP_MTYPE_KGET_REQ, conn)];
+
+ packet.buffer = pkt_buf;
+ packet.size = ECP_SIZE_PKT_BUF(0, ECP_MTYPE_KGET_REQ, conn);
+ payload.buffer = pld_buf;
+ payload.size = ECP_SIZE_PLD_BUF(0, ECP_MTYPE_KGET_REQ, conn);
- ecp_pld_set_type(payload, ECP_MTYPE_KGET_REQ);
- return ecp_pld_send_ll(conn, ti, ECP_ECDH_IDX_PERMA, ECP_ECDH_IDX_INV, payload, sizeof(payload));
+ ecp_pld_set_type(pld_buf, ECP_MTYPE_KGET_REQ);
+ return ecp_pld_send_ll(conn, &packet, ECP_ECDH_IDX_PERMA, ECP_ECDH_IDX_INV, &payload, ECP_SIZE_PLD(0, ECP_MTYPE_KGET_REQ), ti);
}
static ssize_t vconn_open(ECPConnection *conn) {
@@ -90,7 +98,7 @@ static ssize_t vconn_open(ECPConnection *conn) {
return _rv;
}
-static ssize_t vconn_handle_open(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, ssize_t size) {
+static ssize_t vconn_handle_open(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, ssize_t size, ECP2Buffer *b) {
if (conn->type != ECP_CTYPE_VCONN) return ECP_ERR;
if (mtype & ECP_MTYPE_FLAG_REP) {
@@ -102,10 +110,10 @@ static ssize_t vconn_handle_open(ECPConnection *conn, ecp_seq_t seq, unsigned ch
conn = conn_v->next;
}
handler = conn->sock->ctx->handler[conn->type] ? conn->sock->ctx->handler[conn->type]->msg[ECP_MTYPE_OPEN] : NULL;
- return handler ? handler(conn, seq, mtype, msg, size) : size;
+ return handler ? handler(conn, seq, mtype, msg, size, b) : size;
}
- return ecp_conn_handle_open(conn, seq, mtype, msg, size);
+ return ecp_conn_handle_open(conn, seq, mtype, msg, size, b);
} else {
ECPContext *ctx = conn->sock->ctx;
ECPVConnIn *conn_v = (ECPVConnIn *)conn;
@@ -151,16 +159,16 @@ static ssize_t vconn_handle_open(ECPConnection *conn, ecp_seq_t seq, unsigned ch
return ECP_ERR;
}
-static ssize_t vconn_handle_relay(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, ssize_t size) {
+static ssize_t vconn_handle_relay(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, ssize_t size, ECP2Buffer *b) {
ECPContext *ctx = conn->sock->ctx;
ECPConnection *conn_out = NULL;
ECPVConnIn *conn_v = (ECPVConnIn *)conn;
- unsigned char *payload = NULL;
ssize_t rv;
if (conn->out) return ECP_ERR;
if (conn->type != ECP_CTYPE_VCONN) return ECP_ERR;
-
+ if (b == NULL) return ECP_ERR;
+
if (size < 0) return size;
if (size < ECP_MIN_PKT) return ECP_ERR_MIN_PKT;
@@ -185,9 +193,12 @@ static ssize_t vconn_handle_relay(ECPConnection *conn, ecp_seq_t seq, unsigned c
if (conn_out == NULL) return ECP_ERR;
- payload = msg - ECP_SIZE_PLD_HDR - 1;
- ecp_pld_set_type(payload, ECP_MTYPE_EXEC);
- rv = ecp_pld_send(conn_out, payload, size + msg - payload);
+ ECPBuffer payload;
+ payload.buffer = msg - ECP_SIZE_PLD_HDR - 1;
+ payload.size = b->payload->size - (payload.buffer - b->payload->buffer);
+
+ ecp_pld_set_type(payload.buffer, ECP_MTYPE_EXEC);
+ rv = ecp_pld_send(conn_out, b->packet, &payload, ECP_SIZE_PLD_HDR+1+size);
#ifdef ECP_WITH_PTHREAD
pthread_mutex_lock(&conn_out->mutex);
@@ -257,16 +268,25 @@ static void vlink_destroy(ECPConnection *conn) {
static ssize_t _vlink_send_open(ECPConnection *conn, ECPTimerItem *ti) {
ECPSocket *sock = conn->sock;
ECPContext *ctx = sock->ctx;
- unsigned char payload[ECP_SIZE_PLD(ECP_ECDH_SIZE_KEY+1, 0)];
- unsigned char *buf = ecp_pld_get_buf(payload, 0);
+
+ ECPBuffer packet;
+ ECPBuffer payload;
+ unsigned char pkt_buf[ECP_SIZE_PKT_BUF(ECP_ECDH_SIZE_KEY+1, ECP_MTYPE_OPEN_REQ, conn)];
+ unsigned char pld_buf[ECP_SIZE_PLD_BUF(ECP_ECDH_SIZE_KEY+1, ECP_MTYPE_OPEN_REQ, conn)];
+ unsigned char *buf = ecp_pld_get_buf(pld_buf, ECP_MTYPE_OPEN_REQ);
int rv = ECP_OK;
+ packet.buffer = pkt_buf;
+ packet.size = ECP_SIZE_PKT_BUF(ECP_ECDH_SIZE_KEY+1, ECP_MTYPE_OPEN_REQ, conn);
+ payload.buffer = pld_buf;
+ payload.size = ECP_SIZE_PLD_BUF(ECP_ECDH_SIZE_KEY+1, ECP_MTYPE_OPEN_REQ, conn);
+
// XXX server should verify perma_key
- ecp_pld_set_type(payload, ECP_MTYPE_OPEN_REQ);
+ ecp_pld_set_type(pld_buf, ECP_MTYPE_OPEN_REQ);
buf[0] = conn->type;
memcpy(buf+1, ctx->cr.dh_pub_get_buf(&sock->key_perma.public), ECP_ECDH_SIZE_KEY);
- return ecp_pld_send_wtimer(conn, ti, payload, sizeof(payload));
+ return ecp_pld_send_wtimer(conn, &packet, &payload, ECP_SIZE_PLD(ECP_ECDH_SIZE_KEY+1, ECP_MTYPE_OPEN_REQ), ti);
}
static ssize_t vlink_open(ECPConnection *conn) {
@@ -277,7 +297,7 @@ static void vlink_close(ECPConnection *conn) {
vlink_remove(conn);
}
-static ssize_t vlink_handle_open(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, ssize_t size) {
+static ssize_t vlink_handle_open(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, ssize_t size, ECP2Buffer *b) {
ssize_t rv;
int is_open;
@@ -293,7 +313,7 @@ static ssize_t vlink_handle_open(ECPConnection *conn, ecp_seq_t seq, unsigned ch
pthread_mutex_unlock(&conn->mutex);
#endif
- rv = ecp_conn_handle_open(conn, seq, mtype, msg, size);
+ rv = ecp_conn_handle_open(conn, seq, mtype, msg, size, b);
if (rv < 0) return rv;
if (mtype & ECP_MTYPE_FLAG_REP) {
@@ -316,12 +336,12 @@ static ssize_t vlink_handle_open(ECPConnection *conn, ecp_seq_t seq, unsigned ch
return ECP_ERR;
}
-static ssize_t vlink_handle_relay(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, ssize_t size) {
+static ssize_t vlink_handle_relay(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, ssize_t size, ECP2Buffer *b) {
ECPContext *ctx = conn->sock->ctx;
- unsigned char *payload = NULL;
ssize_t rv;
if (conn->type != ECP_CTYPE_VLINK) return ECP_ERR;
+ if (b == NULL) return ECP_ERR;
if (size < 0) return size;
if (size < ECP_MIN_PKT) return ECP_ERR_MIN_PKT;
@@ -347,9 +367,12 @@ static ssize_t vlink_handle_relay(ECPConnection *conn, ecp_seq_t seq, unsigned c
if (conn == NULL) return ECP_ERR;
- payload = msg - ECP_SIZE_PLD_HDR - 1;
- ecp_pld_set_type(payload, ECP_MTYPE_EXEC);
- rv = ecp_pld_send(conn, payload, size + msg - payload);
+ ECPBuffer payload;
+ payload.buffer = msg - ECP_SIZE_PLD_HDR - 1;
+ payload.size = b->payload->size - (payload.buffer - b->payload->buffer);
+
+ ecp_pld_set_type(payload.buffer, ECP_MTYPE_EXEC);
+ rv = ecp_pld_send(conn, b->packet, &payload, ECP_SIZE_PLD_HDR+1+size);
#ifdef ECP_WITH_PTHREAD
pthread_mutex_lock(&conn->mutex);
@@ -363,71 +386,127 @@ static ssize_t vlink_handle_relay(ECPConnection *conn, ecp_seq_t seq, unsigned c
return size;
}
-static ssize_t vconn_set_msg(ECPConnection *conn, unsigned char *pld_out, size_t pld_out_size, unsigned char *pld_in, size_t pld_in_size) {
- if ((conn->type == ECP_CTYPE_VCONN) && conn->out) {
- unsigned char mtype = ecp_pld_get_type(pld_in);
- if ((mtype == ECP_MTYPE_OPEN_REQ) || (mtype == ECP_MTYPE_KGET_REQ)) {
- ECPVConnection *conn_v = (ECPVConnection *)conn;
- ECPContext *ctx = conn->sock->ctx;
- ECPConnection *conn_next = conn_v->next;
- unsigned char *buf = NULL;
- int rv;
+static ssize_t vconn_set_msg(ECPConnection *conn, ECPBuffer *payload, unsigned char mtype) {
+ if (conn->out && (conn->type == ECP_CTYPE_VCONN) && ((mtype == ECP_MTYPE_OPEN_REQ) || (mtype == ECP_MTYPE_KGET_REQ))) {
+ ECPVConnection *conn_v = (ECPVConnection *)conn;
+ ECPContext *ctx = conn->sock->ctx;
+ ECPConnection *conn_next = conn_v->next;
+ unsigned char *buf = NULL;
+ int rv;
- if (pld_out_size < ECP_SIZE_PLD_HDR + 3 + 2 * ECP_ECDH_SIZE_KEY) return ECP_ERR;
- if (conn_next == NULL) return ECP_ERR;
+ if (payload->size < ECP_SIZE_PLD_HDR + 3 + 2 * ECP_ECDH_SIZE_KEY) return ECP_ERR;
+ if (conn_next == NULL) return ECP_ERR;
- ecp_pld_set_type(pld_out, ECP_MTYPE_OPEN_REQ);
- buf = ecp_pld_get_buf(pld_out, 0);
+ ecp_pld_set_type(payload->buffer, ECP_MTYPE_OPEN_REQ);
+ buf = ecp_pld_get_buf(payload->buffer, 0);
- buf[0] = ECP_CTYPE_VCONN;
- rv = ecp_conn_dhkey_get_curr(conn_next, NULL, buf+1);
- if (rv) return rv;
+ buf[0] = ECP_CTYPE_VCONN;
+ rv = ecp_conn_dhkey_get_curr(conn_next, NULL, buf+1);
+ if (rv) return rv;
- memcpy(buf+1+ECP_ECDH_SIZE_KEY, ctx->cr.dh_pub_get_buf(&conn_next->node.public), ECP_ECDH_SIZE_KEY);
- buf[1+2*ECP_ECDH_SIZE_KEY] = ECP_MTYPE_RELAY;
+ memcpy(buf+1+ECP_ECDH_SIZE_KEY, ctx->cr.dh_pub_get_buf(&conn_next->node.public), ECP_ECDH_SIZE_KEY);
+ buf[1+2*ECP_ECDH_SIZE_KEY] = ECP_MTYPE_RELAY;
- return ECP_SIZE_PLD_HDR + 3 + 2 * ECP_ECDH_SIZE_KEY;
- }
+ return ECP_SIZE_PLD_HDR + 3 + 2 * ECP_ECDH_SIZE_KEY;
+ } else {
+ if (payload->size < ECP_SIZE_PLD_HDR + 1) return ECP_ERR;
+
+ ecp_pld_set_type(payload->buffer, ECP_MTYPE_RELAY);
+
+ return ECP_SIZE_PLD_HDR + 1;
}
- ecp_pld_set_type(pld_out, ECP_MTYPE_RELAY);
- return ECP_SIZE_PLD_HDR + 1;
}
+/* Memory limited version: */
+static ssize_t vconn_pack(ECPConnection *conn, ECPBuffer *packet, unsigned char s_idx, unsigned char c_idx, ECPBuffer *payload, size_t pld_size, ECPSeqItem *si, ECPNetAddr *addr) {
+ ECPContext *ctx = conn->sock->ctx;
+
+ if (conn->parent) {
+ unsigned char mtype = ecp_pld_get_type(payload->buffer);
+ ssize_t rv, hdr_size = vconn_set_msg(conn->parent, packet, mtype);
+ if (hdr_size < 0) return hdr_size;
+
+ rv = ecp_conn_pack(conn, packet->buffer+hdr_size, packet->size-hdr_size, s_idx, c_idx, payload->buffer, pld_size, si, NULL);
+ if (rv < 0) return rv;
+
+ if (payload->size < rv+hdr_size) return ECP_ERR;
+ memcpy(payload->buffer, packet->buffer, rv+hdr_size);
+
+ return vconn_pack(conn->parent, packet, ECP_ECDH_IDX_INV, ECP_ECDH_IDX_INV, payload, rv+hdr_size, NULL, addr);
+ } else {
+ return ecp_conn_pack(conn, packet->buffer, packet->size, s_idx, c_idx, payload->buffer, pld_size, si, addr);
+ }
+}
+
+static ssize_t vconn_pack_raw(ECPSocket *sock, ECPConnection *parent, ECPBuffer *packet, unsigned char s_idx, unsigned char c_idx, ecp_dh_public_t *public, ecp_aead_key_t *shsec, unsigned char *nonce, ecp_seq_t seq, ECPBuffer *payload, size_t pld_size, ECPNetAddr *addr) {
+ ECPContext *ctx = sock->ctx;
-static ssize_t vconn_pack(ECPConnection *conn, unsigned char *packet, size_t pkt_size, unsigned char s_idx, unsigned char c_idx, unsigned char *payload, size_t payload_size, ECPSeqItem *si, ECPNetAddr *addr) {
+ if (parent) {
+ unsigned char mtype = ecp_pld_get_type(payload->buffer);
+ ssize_t rv, hdr_size = vconn_set_msg(parent, packet, mtype);
+ if (hdr_size < 0) return hdr_size;
+
+ rv = ecp_pack(ctx, packet->buffer+hdr_size, packet->size-hdr_size, s_idx, c_idx, public, shsec, nonce, seq, payload->buffer, pld_size);
+ if (rv < 0) return rv;
+
+ if (payload->size < rv+hdr_size) return ECP_ERR;
+ memcpy(payload->buffer, packet->buffer, rv+hdr_size);
+
+ return vconn_pack(parent, packet, ECP_ECDH_IDX_INV, ECP_ECDH_IDX_INV, payload, rv+hdr_size, NULL, addr);
+ } else {
+ return ecp_pack(ctx, packet->buffer, packet->size, s_idx, c_idx, public, shsec, nonce, seq, payload->buffer, pld_size);
+ }
+}
+
+/* Non memory limited version: */
+/*
+static ssize_t vconn_pack(ECPConnection *conn, ECPBuffer *packet, unsigned char s_idx, unsigned char c_idx, ECPBuffer *payload, size_t pld_size, ECPSeqItem *si, ECPNetAddr *addr) {
ECPContext *ctx = conn->sock->ctx;
if (conn->parent) {
- unsigned char payload_[ECP_MAX_PLD];
- ssize_t rv, hdr_size = vconn_set_msg(conn->parent, payload_, sizeof(payload_), payload, payload_size);
+ ECPBuffer payload_;
+ unsigned char pld_buf[ECP_MAX_PLD];
+
+ payload_.buffer = pld_buf;
+ payload_.size = ECP_MAX_PLD;
+
+ unsigned char mtype = ecp_pld_get_type(payload->buffer);
+ ssize_t rv, hdr_size = vconn_set_msg(conn->parent, &payload_, mtype);
if (hdr_size < 0) return hdr_size;
- rv = ecp_conn_pack(conn, payload_+hdr_size, ECP_MAX_PLD-hdr_size, s_idx, c_idx, payload, payload_size, si, NULL);
+ rv = ecp_conn_pack(conn, payload_.buffer+hdr_size, payload_.size-hdr_size, s_idx, c_idx, payload->buffer, pld_size, si, NULL);
if (rv < 0) return rv;
- return vconn_pack(conn->parent, packet, pkt_size, ECP_ECDH_IDX_INV, ECP_ECDH_IDX_INV, payload_, rv+hdr_size, NULL, addr);
+ return vconn_pack(conn->parent, packet, ECP_ECDH_IDX_INV, ECP_ECDH_IDX_INV, &payload_, rv+hdr_size, NULL, addr);
} else {
- return ecp_conn_pack(conn, packet, pkt_size, s_idx, c_idx, payload, payload_size, si, addr);
+ return ecp_conn_pack(conn, packet->buffer, packet->size, s_idx, c_idx, payload->buffer, pld_size, si, addr);
}
}
-static ssize_t vconn_pack_raw(ECPSocket *sock, ECPConnection *parent, unsigned char *packet, size_t pkt_size, unsigned char s_idx, unsigned char c_idx, ecp_dh_public_t *public, ecp_aead_key_t *shsec, unsigned char *nonce, ecp_seq_t seq, unsigned char *payload, size_t payload_size, ECPNetAddr *addr) {
+static ssize_t vconn_pack_raw(ECPSocket *sock, ECPConnection *parent, ECPBuffer *packet, unsigned char s_idx, unsigned char c_idx, ecp_dh_public_t *public, ecp_aead_key_t *shsec, unsigned char *nonce, ecp_seq_t seq, ECPBuffer *payload, size_t pld_size, ECPNetAddr *addr) {
ECPContext *ctx = sock->ctx;
if (parent) {
- unsigned char payload_[ECP_MAX_PLD];
- ssize_t rv, hdr_size = vconn_set_msg(parent, payload_, sizeof(payload_), payload, payload_size);
+ ECPBuffer payload_;
+ unsigned char pld_buf[ECP_MAX_PLD];
+
+ payload_.buffer = pld_buf;
+ payload_.size = ECP_MAX_PLD;
+
+ unsigned char mtype = ecp_pld_get_type(payload->buffer);
+ ssize_t rv, hdr_size = vconn_set_msg(parent, &payload_, mtype);
if (hdr_size < 0) return hdr_size;
- rv = ecp_pack(ctx, payload_+hdr_size, ECP_MAX_PLD-hdr_size, s_idx, c_idx, public, shsec, nonce, seq, payload, payload_size);
+ rv = ecp_pack(ctx, payload_.buffer+hdr_size, payload_.size-hdr_size, s_idx, c_idx, public, shsec, nonce, seq, payload->buffer, pld_size);
if (rv < 0) return rv;
- return vconn_pack(parent, packet, pkt_size, ECP_ECDH_IDX_INV, ECP_ECDH_IDX_INV, payload_, rv+hdr_size, NULL, addr);
+ return vconn_pack(parent, packet, ECP_ECDH_IDX_INV, ECP_ECDH_IDX_INV, &payload_, rv+hdr_size, NULL, addr);
} else {
- return ecp_pack(ctx, packet, pkt_size, s_idx, c_idx, public, shsec, nonce, seq, payload, payload_size);
+ return ecp_pack(ctx, packet->buffer, packet->size, s_idx, c_idx, public, shsec, nonce, seq, payload->buffer, pld_size);
}
}
+*/
int ecp_ctx_vconn_init(ECPContext *ctx) {
int rv;
@@ -509,10 +588,18 @@ int ecp_vconn_init(ECPConnection *conn, ECPNode *conn_node, ECPVConnection vconn
}
static ssize_t _vconn_send_kget(ECPConnection *conn, ECPTimerItem *ti) {
- unsigned char payload[ECP_SIZE_PLD(0, 0)];
+ ECPBuffer packet;
+ ECPBuffer payload;
+ unsigned char pkt_buf[ECP_SIZE_PKT_BUF(0, ECP_MTYPE_KGET_REQ, conn)];
+ unsigned char pld_buf[ECP_SIZE_PLD_BUF(0, ECP_MTYPE_KGET_REQ, conn)];
+
+ packet.buffer = pkt_buf;
+ packet.size = ECP_SIZE_PKT_BUF(0, ECP_MTYPE_KGET_REQ, conn);
+ payload.buffer = pld_buf;
+ payload.size = ECP_SIZE_PLD_BUF(0, ECP_MTYPE_KGET_REQ, conn);
- ecp_pld_set_type(payload, ECP_MTYPE_KGET_REQ);
- return ecp_pld_send_ll(conn, ti, ECP_ECDH_IDX_PERMA, ECP_ECDH_IDX_INV, payload, sizeof(payload));
+ ecp_pld_set_type(pld_buf, ECP_MTYPE_KGET_REQ);
+ return ecp_pld_send_ll(conn, &packet, ECP_ECDH_IDX_PERMA, ECP_ECDH_IDX_INV, &payload, ECP_SIZE_PLD(0, ECP_MTYPE_KGET_REQ), ti);
}
int ecp_vconn_open(ECPConnection *conn, ECPNode *conn_node, ECPVConnection vconn[], ECPNode vconn_node[], int size) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 16:38:16 +0000