Move usbmuxd to its own folder

1 files changed, 0 insertions, 430 deletions

diff --git a/client.c b/client.c
deleted file mode 100644
index b33d892..0000000
--- a/client.c
+++ /dev/null
@@ -1,430 +0,0 @@
-/*
-	usbmuxd - iPhone/iPod Touch USB multiplex server daemon
-
-Copyright (C) 2009	Hector Martin "marcan" <hector@marcansoft.com>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 or version 3.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-*/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdlib.h>
-#include <errno.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <arpa/inet.h>
-
-#include "log.h"
-#include "usb.h"
-#include "client.h"
-#include "device.h"
-
-#define CMD_BUF_SIZE	256
-#define REPLY_BUF_SIZE	1024
-
-enum client_state {
-	CLIENT_COMMAND,		// waiting for command
-	CLIENT_LISTEN,		// listening for devices
-	CLIENT_CONNECTING1,	// issued connection request
-	CLIENT_CONNECTING2,	// connection established, but waiting for response message to get sent
-	CLIENT_CONNECTED,	// connected
-	CLIENT_DEAD
-};
-
-struct mux_client {
-	int fd;
-	unsigned char *ob_buf;
-	int ob_size;
-	int ob_capacity;
-	unsigned char *ib_buf;
-	int ib_size;
-	int ib_capacity;
-	short events, devents;
-	uint32_t connect_tag;
-	int connect_device;
-	enum client_state state;
-};
-
-static struct collection client_list;
-
-int client_read(struct mux_client *client, void *buffer, int len)
-{
-	usbmuxd_log(LL_SPEW, "client_read fd %d buf %p len %d", client->fd, buffer, len);
-	if(client->state != CLIENT_CONNECTED) {
-		usbmuxd_log(LL_ERROR, "Attempted to read from client %d not in CONNECTED state", client->fd);
-		return -1;
-	}
-	return recv(client->fd, buffer, len, 0);
-}
-
-int client_write(struct mux_client *client, void *buffer, int len)
-{
-	usbmuxd_log(LL_SPEW, "client_write fd %d buf %p len %d", client->fd, buffer, len);
-	if(client->state != CLIENT_CONNECTED) {
-		usbmuxd_log(LL_ERROR, "Attempted to write to client %d not in CONNECTED state", client->fd);
-		return -1;
-	}
-	return send(client->fd, buffer, len, 0);
-}
-
-int client_set_events(struct mux_client *client, short events)
-{
-	if((client->state != CLIENT_CONNECTED) && (client->state != CLIENT_CONNECTING2)) {
-		usbmuxd_log(LL_ERROR, "client_set_events to client %d not in CONNECTED state", client->fd);
-		return -1;
-	}
-	client->devents = events;
-	if(client->state == CLIENT_CONNECTED)
-		client->events = events;
-	return 0;
-}
-
-int client_accept(int listenfd)
-{
-	struct sockaddr_un addr;
-	int cfd;
-	socklen_t len = sizeof(struct sockaddr_un);
-	cfd = accept(listenfd, (struct sockaddr *)&addr, &len);
-	if (cfd < 0) {
-		usbmuxd_log(LL_ERROR, "accept() failed (%s)", strerror(errno));
-		return cfd;
-	}
-	
-	struct mux_client *client;
-	client = malloc(sizeof(struct mux_client));
-	memset(client, 0, sizeof(struct mux_client));
-	
-	client->fd = cfd;
-	client->ob_buf = malloc(REPLY_BUF_SIZE);
-	client->ob_size = 0;
-	client->ob_capacity = REPLY_BUF_SIZE;
-	client->ib_buf = malloc(CMD_BUF_SIZE);
-	client->ib_size = 0;
-	client->ib_capacity = CMD_BUF_SIZE;
-	client->state = CLIENT_COMMAND;
-	client->events = POLLIN;
-	
-	collection_add(&client_list, client);
-	
-	usbmuxd_log(LL_INFO, "New client on fd %d", client->fd);
-	return client->fd;
-}
-
-void client_close(struct mux_client *client)
-{
-	usbmuxd_log(LL_INFO, "Disconnecting client fd %d", client->fd);
-	if(client->state == CLIENT_CONNECTING1 || client->state == CLIENT_CONNECTING2) {
-		usbmuxd_log(LL_INFO, "Client died mid-connect, aborting device %d connection", client->connect_device);
-		client->state = CLIENT_DEAD;
-		device_abort_connect(client->connect_device, client);
-	}
-	close(client->fd);
-	if(client->ob_buf)
-		free(client->ob_buf);
-	if(client->ib_buf)
-		free(client->ib_buf);
-	collection_remove(&client_list, client);
-	free(client);
-}
-
-void client_get_fds(struct fdlist *list)
-{
-	FOREACH(struct mux_client *client, &client_list) {
-		fdlist_add(list, FD_CLIENT, client->fd, client->events);
-	} ENDFOREACH
-}
-
-static int send_pkt(struct mux_client *client, uint32_t tag, enum client_msgtype msg, void *payload, int payload_length)
-{
-	struct client_header hdr;
-	hdr.version = CLIENT_PROTOCOL_VERSION;
-	hdr.length = sizeof(hdr) + payload_length;
-	hdr.message = msg;
-	hdr.tag = tag;
-	usbmuxd_log(LL_DEBUG, "send_pkt fd %d tag %d msg %d payload_length %d", client->fd, tag, msg, payload_length);
-	if((client->ob_capacity - client->ob_size) < hdr.length) {
-		usbmuxd_log(LL_ERROR, "Client %d output buffer full (%d bytes) while sending message %d (%d bytes)", client->fd, client->ob_capacity, hdr.message, hdr.length);
-		client_close(client);
-		return -1;
-	}
-	memcpy(client->ob_buf + client->ob_size, &hdr, sizeof(hdr));
-	if(payload && payload_length)
-		memcpy(client->ob_buf + client->ob_size + sizeof(hdr), payload, payload_length);
-	client->ob_size += hdr.length;
-	client->events |= POLLOUT;
-	return hdr.length;
-}
-
-static int send_result(struct mux_client *client, uint32_t tag, uint32_t result)
-{
-	return send_pkt(client, tag, MESSAGE_RESULT, &result, sizeof(uint32_t));
-}
-
-int client_notify_connect(struct mux_client *client, enum client_result result)
-{
-	usbmuxd_log(LL_SPEW, "client_notify_connect fd %d result %d", client->fd, result);
-	if(client->state == CLIENT_DEAD)
-		return -1;
-	if(client->state != CLIENT_CONNECTING1) {
-		usbmuxd_log(LL_ERROR, "client_notify_connect when client %d is not in CONNECTING1 state", client->fd);
-		return -1;
-	}
-	if(send_result(client, client->connect_tag, result) < 0)
-		return -1;
-	if(result == RESULT_OK) {
-		client->state = CLIENT_CONNECTING2;
-		client->events = POLLOUT; // wait for the result packet to go through
-		// no longer need this
-		free(client->ib_buf);
-		client->ib_buf = NULL;
-	} else {
-		client->state = CLIENT_COMMAND;
-	}
-	return 0;
-}
-
-static int notify_device(struct mux_client *client, struct device_info *dev)
-{
-	struct client_msg_dev dmsg;
-	memset(&dmsg, 0, sizeof(dmsg));
-	dmsg.device_id = dev->id;
-	strncpy(dmsg.device_serial, dev->serial, 256);
-	dmsg.device_serial[255] = 0;
-	dmsg.location = dev->location;
-	dmsg.device_pid = dev->pid;
-	return send_pkt(client, 0, MESSAGE_DEVICE_ADD, &dmsg, sizeof(dmsg));
-}
-
-static int start_listen(struct mux_client *client)
-{
-	struct device_info *devs;
-	struct device_info *dev;
-	int count, i;
-	
-	client->state = CLIENT_LISTEN;
-	count = device_get_count();
-	if(!count)
-		return 0;
-	devs = malloc(sizeof(struct device_info) * count);
-	count = device_get_list(devs);
-	
-	// going to need a larger buffer for many devices
-	int needed_buffer = count * (sizeof(struct client_msg_dev) + sizeof(struct client_header)) + REPLY_BUF_SIZE;
-	if(client->ob_capacity < needed_buffer) {
-		usbmuxd_log(LL_DEBUG, "Enlarging client %d reply buffer %d -> %d to make space for device notifications", client->fd, client->ob_capacity, needed_buffer);
-		client->ob_buf = realloc(client->ob_buf, needed_buffer);
-		client->ob_capacity = needed_buffer;
-	}
-	dev = devs;
-	for(i=0; i<count; i++) {
-		if(notify_device(client, dev++) < 0) {
-			free(devs);
-			return -1;
-		}
-	}
-	free(devs);
-	return count;
-}
-
-static int client_command(struct mux_client *client, struct client_header *hdr, const char *payload)
-{
-	int res;
-	usbmuxd_log(LL_DEBUG, "Client command in fd %d len %d ver %d msg %d tag %d", client->fd, hdr->length, hdr->version, hdr->message, hdr->tag);
-	
-	if(client->state != CLIENT_COMMAND) {
-		usbmuxd_log(LL_ERROR, "Client %d command received in the wrong state", client->fd);
-		if(send_result(client, hdr->tag, RESULT_BADCOMMAND) < 0)
-			return -1;
-		client_close(client);
-		return -1;
-	}
-	
-	struct client_msg_connect *ch;
-	switch(hdr->message) {
-		case MESSAGE_LISTEN:
-			if(send_result(client, hdr->tag, 0) < 0)
-				return -1;
-			usbmuxd_log(LL_DEBUG, "Client %d now LISTENING", client->fd);
-			return start_listen(client);
-		case MESSAGE_CONNECT:
-			ch = (void*)payload;
-			usbmuxd_log(LL_DEBUG, "Client %d connection request to device %d port %d", client->fd, ch->device_id, ntohs(ch->port));
-			res = device_start_connect(ch->device_id, ntohs(ch->port), client);
-			if(res < 0) {
-				if(send_result(client, hdr->tag, -res) < 0)
-					return -1;
-			} else {
-				client->connect_tag = hdr->tag;
-				client->connect_device = ch->device_id;
-				client->state = CLIENT_CONNECTING1;
-			}
-			return 0;
-		default:
-			usbmuxd_log(LL_ERROR, "Client %d invalid command %d", client->fd, hdr->message);
-			if(send_result(client, hdr->tag, RESULT_BADCOMMAND) < 0)
-				return -1;
-			return 0;
-	}
-	return -1;
-}
-
-static void process_send(struct mux_client *client)
-{
-	int res;
-	if(!client->ob_size) {
-		usbmuxd_log(LL_WARNING, "Client %d OUT process but nothing to send?", client->fd);
-		client->events &= ~POLLOUT;
-		return;
-	}
-	res = send(client->fd, client->ob_buf, client->ob_size, 0);
-	if(res <= 0) {
-		usbmuxd_log(LL_ERROR, "Send to client fd %d failed: %d %s", client->fd, res, strerror(errno));
-		client_close(client);
-		return;
-	}
-	if(res == client->ob_size) {
-		client->ob_size = 0;
-		client->events &= ~POLLOUT;
-		if(client->state == CLIENT_CONNECTING2) {
-			usbmuxd_log(LL_DEBUG, "Client %d switching to CONNECTED state", client->fd);
-			client->state = CLIENT_CONNECTED;
-			client->events = client->devents;
-			// no longer need this
-			free(client->ob_buf);
-			client->ob_buf = NULL;
-		}
-	} else {
-		client->ob_size -= res;
-		memmove(client->ob_buf, client->ob_buf + res, client->ob_size);
-	}
-}
-static void process_recv(struct mux_client *client)
-{
-	int res;
-	int did_read = 0;
-	if(client->ib_size < sizeof(struct client_header)) {
-		res = recv(client->fd, client->ib_buf + client->ib_size, sizeof(struct client_header) - client->ib_size, 0);
-		if(res <= 0) {
-			if(res < 0)
-				usbmuxd_log(LL_ERROR, "Receive from client fd %d failed: %s", client->fd, strerror(errno));
-			else
-				usbmuxd_log(LL_INFO, "Client %d connection closed", client->fd);
-			client_close(client);
-			return;
-		}
-		client->ib_size += res;
-		if(client->ib_size < sizeof(struct client_header))
-			return;
-		did_read = 1;
-	}
-	struct client_header *hdr = (void*)client->ib_buf;
-	if(hdr->version != CLIENT_PROTOCOL_VERSION) {
-		usbmuxd_log(LL_INFO, "Client %d version mismatch: expected %d, got %d", client->fd, CLIENT_PROTOCOL_VERSION, hdr->version);
-		client_close(client);
-	}
-	if(hdr->length > client->ib_capacity) {
-		usbmuxd_log(LL_INFO, "Client %d message is too long (%d bytes)", client->fd, hdr->length);
-		client_close(client);
-	}
-	if(hdr->length < sizeof(struct client_header)) {
-		usbmuxd_log(LL_ERROR, "Client %d message is too short (%d bytes)", client->fd, hdr->length);
-		client_close(client);
-	}
-	if(client->ib_size < hdr->length) {
-		if(did_read)
-			return; //maybe we would block, so defer to next loop
-		res = recv(client->fd, client->ib_buf + client->ib_size, hdr->length - client->ib_size, 0);
-		if(res < 0) {
-			usbmuxd_log(LL_ERROR, "Receive from client fd %d failed: %s", client->fd, strerror(errno));
-			client_close(client);
-			return;
-		} else if(res == 0) {
-			usbmuxd_log(LL_INFO, "Client %d connection closed", client->fd);
-			client_close(client);
-			return;
-		}
-		client->ib_size += res;
-		if(client->ib_size < hdr->length)
-			return;
-	}
-	client_command(client, hdr, (char *)(hdr+1));
-	client->ib_size = 0;
-}
-
-void client_process(int fd, short events)
-{
-	struct mux_client *client = NULL;
-	FOREACH(struct mux_client *lc, &client_list) {
-		if(lc->fd == fd) {
-			client = lc;
-			break;
-		}
-	} ENDFOREACH
-
-	if(!client) {
-		usbmuxd_log(LL_ERROR, "client_process: fd %d not found in client list", fd);
-		return;
-	}
-
-	if(client->state == CLIENT_CONNECTED) {
-		usbmuxd_log(LL_SPEW, "client_process in CONNECTED state");
-		device_client_process(client->connect_device, client, events);
-	} else {
-		if(events & POLLIN) {
-			process_recv(client);
-		} else if(events & POLLOUT) { //not both in case client died as part of process_recv
-			process_send(client);
-		}
-	}
-	
-}
-
-void client_device_add(struct device_info *dev)
-{
-	usbmuxd_log(LL_DEBUG, "client_device_add: id %d, location 0x%x, serial %s", dev->id, dev->location, dev->serial);
-	FOREACH(struct mux_client *client, &client_list) {
-		if(client->state == CLIENT_LISTEN)
-			notify_device(client, dev);
-	} ENDFOREACH	
-}
-void client_device_remove(int device_id)
-{
-	uint32_t id = device_id;
-	usbmuxd_log(LL_DEBUG, "client_device_remove: id %d", device_id);
-	FOREACH(struct mux_client *client, &client_list) {
-		if(client->state == CLIENT_LISTEN)
-			send_pkt(client, 0, MESSAGE_DEVICE_REMOVE, &id, sizeof(uint32_t));
-	} ENDFOREACH
-}
-
-
-void client_init(void)
-{
-	usbmuxd_log(LL_DEBUG, "client_init");
-	collection_init(&client_list);
-}
-
-void client_shutdown(void)
-{
-	usbmuxd_log(LL_DEBUG, "client_shutdown");
-	FOREACH(struct mux_client *client, &client_list) {
-		client_close(client);
-	} ENDFOREACH
-	collection_free(&client_list);
-}