static int pn_raw_send(const void *data, int len, struct net_device *dev, u16 dst, u16 src, u8 res) { struct sk_buff *skb = alloc_skb(MAX_PHONET_HEADER + len, GFP_ATOMIC); if (skb == NULL) return -ENOMEM; skb_reserve(skb, MAX_PHONET_HEADER); __skb_put(skb, len); skb_copy_to_linear_data(skb, data, len); return pn_send(skb, dev, dst, src, res, 1); }
/* * Create a Phonet header for the skb and send it out. Returns * non-zero error code if failed. The skb is freed then. */ int pn_skb_send(struct sock *sk, struct sk_buff *skb, const struct sockaddr_pn *target) { struct net *net = sock_net(sk); struct net_device *dev; struct pn_sock *pn = pn_sk(sk); int err; u16 src; u8 daddr = pn_sockaddr_get_addr(target), saddr = PN_NO_ADDR; err = -EHOSTUNREACH; if (sk->sk_bound_dev_if) dev = dev_get_by_index(net, sk->sk_bound_dev_if); else if (phonet_address_lookup(net, daddr) == 0) { dev = phonet_device_get(net); skb->pkt_type = PACKET_LOOPBACK; } else if (pn_sockaddr_get_object(target) == 0) { /* Resource routing (small race until phonet_rcv()) */ struct sock *sk = pn_find_sock_by_res(net, target->spn_resource); if (sk) { sock_put(sk); dev = phonet_device_get(net); skb->pkt_type = PACKET_LOOPBACK; } else dev = phonet_route_output(net, daddr); } else dev = phonet_route_output(net, daddr); if (!dev || !(dev->flags & IFF_UP)) goto drop; saddr = phonet_address_get(dev, daddr); if (saddr == PN_NO_ADDR) goto drop; src = pn->sobject; if (!pn_addr(src)) src = pn_object(saddr, pn_obj(src)); err = pn_send(skb, dev, pn_sockaddr_get_object(target), src, pn_sockaddr_get_resource(target), 0); dev_put(dev); return err; drop: kfree_skb(skb); if (dev) dev_put(dev); return err; }
static int pn_raw_send(const void *data, int len, struct net_device *dev, u16 dst, u16 src, u8 res) { struct sk_buff *skb = alloc_skb(MAX_PHONET_HEADER + len, GFP_ATOMIC); if (skb == NULL) return -ENOMEM; if (phonet_address_lookup(dev_net(dev), pn_addr(dst)) == 0) skb->pkt_type = PACKET_LOOPBACK; skb_reserve(skb, MAX_PHONET_HEADER); __skb_put(skb, len); skb_copy_to_linear_data(skb, data, len); return pn_send(skb, dev, dst, src, res, 1); }
int pn_messenger_put(pn_messenger_t *messenger, pn_message_t *msg) { if (!messenger) return PN_ARG_ERR; if (!msg) return pn_error_set(messenger->error, PN_ARG_ERR, "null message"); outward_munge(messenger, msg); const char *address = pn_message_get_address(msg); pn_link_t *sender = pn_messenger_target(messenger, address); if (!sender) return pn_error_format(messenger->error, PN_ERR, "unable to send to address: %s (%s)", address, pn_driver_error(messenger->driver)); // XXX: proper tag char tag[8]; void *ptr = &tag; uint64_t next = messenger->next_tag++; *((uint32_t *) ptr) = next; pn_delivery(sender, pn_dtag(tag, 8)); size_t size = 1024; // XXX: max message size while (size < 16*1024) { char encoded[size]; int err = pn_message_encode(msg, encoded, &size); if (err == PN_OVERFLOW) { size *= 2; } else if (err) { return err; } else { ssize_t n = pn_send(sender, encoded, size); if (n < 0) { return n; } else { pn_advance(sender); pn_messenger_tsync(messenger, false_pred, 0); return 0; } } } return PN_ERR; }
/* * Create a Phonet header for the skb and send it out. Returns * non-zero error code if failed. The skb is freed then. */ int pn_skb_send(struct sock *sk, struct sk_buff *skb, const struct sockaddr_pn *target) { struct net_device *dev; struct pn_sock *pn = pn_sk(sk); int err; u16 src; u8 daddr = pn_sockaddr_get_addr(target), saddr = PN_NO_ADDR; err = -EHOSTUNREACH; if (sk->sk_bound_dev_if) dev = dev_get_by_index(sock_net(sk), sk->sk_bound_dev_if); else dev = phonet_device_get(sock_net(sk)); if (!dev || !(dev->flags & IFF_UP)) goto drop; saddr = phonet_address_get(dev, daddr); if (saddr == PN_NO_ADDR) goto drop; src = pn->sobject; if (!pn_addr(src)) src = pn_object(saddr, pn_obj(src)); err = pn_send(skb, dev, pn_sockaddr_get_object(target), src, pn_sockaddr_get_resource(target), 0); dev_put(dev); return err; drop: kfree_skb(skb); if (dev) dev_put(dev); return err; }
ssize_t pn_write(pn_io_t *io, pn_socket_t socket, const void *buf, size_t size) { // non-socket io is mapped to socket io for now. See pn_pipe() return pn_send(io, socket, buf, size); }
void client_callback(pn_connector_t *ctor) { struct client_context *ctx = pn_connector_context(ctor); if (pn_connector_closed(ctor)) { ctx->done = true; } pn_sasl_t *sasl = pn_connector_sasl(ctor); while (pn_sasl_state(sasl) != PN_SASL_PASS) { pn_sasl_state_t st = pn_sasl_state(sasl); switch (st) { case PN_SASL_IDLE: return; case PN_SASL_CONF: if (ctx->mechanism && !strcmp(ctx->mechanism, "PLAIN")) { pn_sasl_plain(sasl, ctx->username, ctx->password); } else { pn_sasl_mechanisms(sasl, ctx->mechanism); pn_sasl_client(sasl); } break; case PN_SASL_STEP: if (pn_sasl_pending(sasl)) { fprintf(stderr, "challenge failed\n"); ctx->done = true; } return; case PN_SASL_FAIL: fprintf(stderr, "authentication failed\n"); ctx->done = true; return; case PN_SASL_PASS: break; } } pn_connection_t *connection = pn_connector_connection(ctor); char tagstr[1024]; char msg[ctx->size]; char data[ctx->size + 16]; for (int i = 0; i < ctx->size; i++) { msg[i] = 'x'; } size_t ndata = pn_message_data(data, ctx->size + 16, msg, ctx->size); if (!ctx->init) { ctx->init = true; char container[1024]; if (gethostname(container, 1024)) pn_fatal("hostname lookup failed"); pn_connection_set_container(connection, container); pn_connection_set_hostname(connection, ctx->hostname); pn_session_t *ssn = pn_session(connection); pn_connection_open(connection); pn_session_open(ssn); if (ctx->send_count) { pn_link_t *snd = pn_sender(ssn, "sender"); pn_set_target(snd, ctx->address); pn_link_open(snd); char buf[16]; for (int i = 0; i < ctx->send_count; i++) { sprintf(buf, "%x", i); pn_delivery(snd, pn_dtag(buf, strlen(buf))); } } if (ctx->recv_count) { pn_link_t *rcv = pn_receiver(ssn, "receiver"); pn_set_source(rcv, ctx->address); pn_link_open(rcv); pn_flow(rcv, ctx->recv_count < ctx->high ? ctx->recv_count : ctx->high); } } pn_delivery_t *delivery = pn_work_head(connection); while (delivery) { pn_delivery_tag_t tag = pn_delivery_tag(delivery); pn_quote_data(tagstr, 1024, tag.bytes, tag.size); pn_link_t *link = pn_link(delivery); if (pn_writable(delivery)) { pn_send(link, data, ndata); if (pn_advance(link)) { if (!ctx->quiet) printf("sent delivery: %s\n", tagstr); } } else if (pn_readable(delivery)) { if (!ctx->quiet) { printf("received delivery: %s\n", tagstr); printf(" payload = \""); } while (true) { size_t n = pn_recv(link, msg, 1024); if (n == PN_EOS) { pn_advance(link); pn_disposition(delivery, PN_ACCEPTED); pn_settle(delivery); if (!--ctx->recv_count) { pn_link_close(link); } break; } else if (!ctx->quiet) { pn_print_data(msg, n); } } if (!ctx->quiet) printf("\"\n"); if (pn_credit(link) < ctx->low && pn_credit(link) < ctx->recv_count) { pn_flow(link, (ctx->recv_count < ctx->high ? ctx->recv_count : ctx->high) - pn_credit(link)); } } if (pn_updated(delivery)) { if (!ctx->quiet) printf("disposition for %s: %u\n", tagstr, pn_remote_disposition(delivery)); pn_clear(delivery); pn_settle(delivery); if (!--ctx->send_count) { pn_link_close(link); } } delivery = pn_work_next(delivery); } if (!ctx->send_count && !ctx->recv_count) { printf("closing\n"); // XXX: how do we close the session? //pn_close((pn_endpoint_t *) ssn); pn_connection_close(connection); } if (pn_connection_state(connection) == (PN_LOCAL_CLOSED | PN_REMOTE_CLOSED)) { ctx->done = true; } }
void server_callback(pn_connector_t *ctor) { pn_sasl_t *sasl = pn_connector_sasl(ctor); while (pn_sasl_state(sasl) != PN_SASL_PASS) { switch (pn_sasl_state(sasl)) { case PN_SASL_IDLE: return; case PN_SASL_CONF: pn_sasl_mechanisms(sasl, "PLAIN ANONYMOUS"); pn_sasl_server(sasl); break; case PN_SASL_STEP: { size_t n = pn_sasl_pending(sasl); char iresp[n]; pn_sasl_recv(sasl, iresp, n); printf("%s", pn_sasl_remote_mechanisms(sasl)); printf(" response = "); pn_print_data(iresp, n); printf("\n"); pn_sasl_done(sasl, PN_SASL_OK); pn_connector_set_connection(ctor, pn_connection()); } break; case PN_SASL_PASS: break; case PN_SASL_FAIL: return; } } pn_connection_t *conn = pn_connector_connection(ctor); struct server_context *ctx = pn_connector_context(ctor); char tagstr[1024]; char msg[10*1024]; char data[ctx->size + 16]; for (int i = 0; i < ctx->size; i++) { msg[i] = 'x'; } size_t ndata = pn_message_data(data, ctx->size + 16, msg, ctx->size); if (pn_connection_state(conn) == (PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE)) { pn_connection_open(conn); } pn_session_t *ssn = pn_session_head(conn, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE); while (ssn) { pn_session_open(ssn); ssn = pn_session_next(ssn, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE); } pn_link_t *link = pn_link_head(conn, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE); while (link) { printf("%s, %s\n", pn_remote_source(link), pn_remote_target(link)); pn_set_source(link, pn_remote_source(link)); pn_set_target(link, pn_remote_target(link)); pn_link_open(link); if (pn_is_receiver(link)) { pn_flow(link, 100); } else { pn_delivery(link, pn_dtag("blah", 4)); } link = pn_link_next(link, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE); } pn_delivery_t *delivery = pn_work_head(conn); while (delivery) { pn_delivery_tag_t tag = pn_delivery_tag(delivery); pn_quote_data(tagstr, 1024, tag.bytes, tag.size); pn_link_t *link = pn_link(delivery); if (pn_readable(delivery)) { if (!ctx->quiet) { printf("received delivery: %s\n", tagstr); printf(" payload = \""); } while (true) { ssize_t n = pn_recv(link, msg, 1024); if (n == PN_EOS) { pn_advance(link); pn_disposition(delivery, PN_ACCEPTED); break; } else if (!ctx->quiet) { pn_print_data(msg, n); } } if (!ctx->quiet) printf("\"\n"); if (pn_credit(link) < 50) pn_flow(link, 100); } else if (pn_writable(delivery)) { pn_send(link, data, ndata); if (pn_advance(link)) { if (!ctx->quiet) printf("sent delivery: %s\n", tagstr); char tagbuf[16]; sprintf(tagbuf, "%i", ctx->count++); pn_delivery(link, pn_dtag(tagbuf, strlen(tagbuf))); } } if (pn_updated(delivery)) { if (!ctx->quiet) printf("disposition for %s: %u\n", tagstr, pn_remote_disposition(delivery)); pn_settle(delivery); } delivery = pn_work_next(delivery); } if (pn_connection_state(conn) == (PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED)) { pn_connection_close(conn); } ssn = pn_session_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); while (ssn) { pn_session_close(ssn); ssn = pn_session_next(ssn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); } link = pn_link_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); while (link) { pn_link_close(link); link = pn_link_next(link, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); } }