/*
- sftp_server.c
+ sftp_server.c
Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 2001 Pekka Riikonen
+ Copyright (C) 2001 - 2004 Pekka Riikonen
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
*/
/* $Id$ */
-#include "silcincludes.h"
+#include "silc.h"
#include "silcsftp.h"
#include "silcsftp_fs.h"
#include "sftp_util.h"
/* SFTP Server context */
typedef struct {
- SilcSocketConnection sock;
SilcSFTPSendPacketCallback send_packet;
void *send_context;
SilcSFTPMonitors monitors;
SilcSFTPMonitor monitor;
void *monitor_context;
SilcSFTPFilesystem fs;
+ SilcBuffer packet;
} *SilcSFTPServer;
/* General routine to send SFTP packet to the SFTP client. */
static void silc_sftp_send_packet(SilcSFTPServer sftp,
- SilcSFTPPacket type,
- uint32 len, ...)
+ SilcSFTPPacket type,
+ SilcUInt32 len, ...)
{
- SilcBuffer packet;
+ SilcBuffer tmp;
va_list vp;
va_start(vp, len);
- packet = silc_sftp_packet_encode_vp(type, len, vp);
+ tmp = silc_sftp_packet_encode_vp(type, sftp->packet, len, vp);
va_end(vp);
-
- if (!packet)
+ if (!tmp)
return;
+ sftp->packet = tmp;
- SILC_LOG_HEXDUMP(("SFTP packet to client"), packet->data, packet->len);
+ SILC_LOG_HEXDUMP(("SFTP packet to client"), sftp->packet->data,
+ sftp->packet->len);
/* Send the packet */
- (*sftp->send_packet)(sftp->sock, packet, sftp->send_context);
+ (*sftp->send_packet)(sftp->packet, sftp->send_context);
- silc_buffer_free(packet);
+ /* Clear packet */
+ sftp->packet->data = sftp->packet->tail = sftp->packet->head;
+ sftp->packet->len = 0;
}
/* Sends error to the client */
static void silc_sftp_send_error(SilcSFTPServer sftp,
SilcSFTPStatus status,
- uint32 id)
+ SilcUInt32 id)
{
SILC_LOG_DEBUG(("Send error %d", status));
void *context)
{
SilcSFTPServer server = (SilcSFTPServer)sftp;
- uint32 id = (uint32)context;
+ SilcUInt32 id = SILC_PTR_TO_32(context);
int mlen, llen;
SILC_LOG_DEBUG(("Status callback"));
SILC_LOG_DEBUG(("Request ID: %d", id));
-
+
if (!message)
message = "";
if (!language_tag)
void *context)
{
SilcSFTPServer server = (SilcSFTPServer)sftp;
- uint32 id = (uint32)context;
+ SilcUInt32 id = SILC_PTR_TO_32(context);
unsigned char *hdata;
- uint32 hdata_len;
+ SilcUInt32 hdata_len;
SILC_LOG_DEBUG(("Handle callback"));
SILC_LOG_DEBUG(("Request ID: %d", id));
static void silc_sftp_server_data(SilcSFTP sftp,
SilcSFTPStatus status,
const unsigned char *data,
- uint32 data_len,
+ SilcUInt32 data_len,
void *context)
{
SilcSFTPServer server = (SilcSFTPServer)sftp;
- uint32 id = (uint32)context;
+ SilcUInt32 id = SILC_PTR_TO_32(context);
SILC_LOG_DEBUG(("Data callback"));
SILC_LOG_DEBUG(("Request ID: %d", id));
void *context)
{
SilcSFTPServer server = (SilcSFTPServer)sftp;
- uint32 id = (uint32)context;
+ SilcUInt32 id = SILC_PTR_TO_32(context);
SilcBuffer namebuf;
SILC_LOG_DEBUG(("Name callback"));
void *context)
{
SilcSFTPServer server = (SilcSFTPServer)sftp;
- uint32 id = (uint32)context;
+ SilcUInt32 id = SILC_PTR_TO_32(context);
SilcBuffer attr_buf;
SILC_LOG_DEBUG(("Attr callback"));
}
attr_buf = silc_sftp_attr_encode(attrs);
+ if (!attr_buf) {
+ silc_sftp_send_error(server, SILC_SFTP_STATUS_FAILURE, id);
+ return;
+ }
silc_sftp_send_packet(server, SILC_SFTP_ATTRS, 4 + attr_buf->len,
SILC_STR_UI_INT(id),
static void silc_sftp_server_extended(SilcSFTP sftp,
SilcSFTPStatus status,
const unsigned char *data,
- uint32 data_len,
+ SilcUInt32 data_len,
void *context)
{
SilcSFTPServer server = (SilcSFTPServer)sftp;
- uint32 id = (uint32)context;
+ SilcUInt32 id = SILC_PTR_TO_32(context);
SILC_LOG_DEBUG(("Extended callback"));
SILC_LOG_DEBUG(("Request ID: %d", id));
SILC_STR_END);
}
-/* Starts SFTP server by associating the socket connection `sock' to the
- created SFTP server context. This function returns the allocated
- SFTP client context or NULL on error. The `send_packet' is called
+/* Starts SFTP server and returns context to it. This function returns the
+ allocated SFTP client context or NULL on error. The `send_packet' is called
by the library when it needs to send a packet. The `fs' is the
structure containing filesystem access callbacks. */
-SilcSFTP silc_sftp_server_start(SilcSocketConnection sock,
- SilcSFTPSendPacketCallback send_packet,
+SilcSFTP silc_sftp_server_start(SilcSFTPSendPacketCallback send_packet,
void *send_context,
SilcSFTPFilesystem fs)
{
SilcSFTPServer server;
server = silc_calloc(1, sizeof(*server));
- server->sock = sock;
+ if (!server)
+ return NULL;
server->send_packet = send_packet;
server->send_context = send_context;
server->fs = fs;
SILC_LOG_DEBUG(("Stopping SFTP server %p", server));
+ if (server->packet)
+ silc_buffer_free(server->packet);
silc_free(server);
}
void silc_sftp_server_set_monitor(SilcSFTP sftp,
SilcSFTPMonitors monitors,
- SilcSFTPMonitor monitor,
+ SilcSFTPMonitor monitor,
void *context)
{
SilcSFTPServer server = (SilcSFTPServer)sftp;
SilcSFTPPacket type;
char *filename = NULL, *path = NULL;
const unsigned char *payload = NULL;
- uint32 payload_len;
+ SilcUInt32 payload_len;
int ret;
SilcBufferStruct buf;
- uint32 id;
+ SilcUInt32 id;
SilcSFTPAttributes attrs;
SilcSFTPHandle handle;
SilcSFTPMonitorDataStruct mdata;
SILC_LOG_DEBUG(("Start"));
/* Parse the packet */
- type = silc_sftp_packet_decode(packet->buffer, (unsigned char **)&payload,
+ type = silc_sftp_packet_decode(packet->buffer, (unsigned char **)&payload,
&payload_len);
if (!type)
return;
{
SilcSFTPFileOperation pflags;
unsigned char *attr_buf;
- uint32 attr_len = 0;
+ SilcUInt32 attr_len = 0;
SilcBufferStruct tmpbuf;
SILC_LOG_DEBUG(("Open request"));
SILC_STR_UI_INT(&id),
SILC_STR_UI32_STRING_ALLOC(&filename),
SILC_STR_UI_INT(&pflags),
- SILC_STR_UI32_NSTRING(&attr_buf,
+ SILC_STR_UI32_NSTRING(&attr_buf,
&attr_len),
SILC_STR_END);
if (ret < 0)
if (attr_len) {
silc_buffer_set(&tmpbuf, attr_buf, attr_len);
attrs = silc_sftp_attr_decode(&tmpbuf);
+ if (!attrs)
+ goto failure;
} else {
attrs = silc_calloc(1, sizeof(*attrs));
+ if (!attrs)
+ goto failure;
}
/* Call monitor */
/* Open operation */
server->fs->fs->sftp_open(server->fs->fs_context, sftp, filename, pflags,
- attrs, silc_sftp_server_handle, (void *)id);
+ attrs, silc_sftp_server_handle,
+ SILC_32_TO_PTR(id));
silc_free(filename);
silc_sftp_attr_free(attrs);
case SILC_SFTP_CLOSE:
{
unsigned char *hdata;
- uint32 hdata_len;
+ SilcUInt32 hdata_len;
SILC_LOG_DEBUG(("Close request"));
ret = silc_buffer_unformat(&buf,
SILC_STR_UI_INT(&id),
- SILC_STR_UI32_NSTRING(&hdata,
+ SILC_STR_UI32_NSTRING(&hdata,
&hdata_len),
SILC_STR_END);
if (ret < 0)
/* Close operation */
server->fs->fs->sftp_close(server->fs->fs_context, sftp, handle,
- silc_sftp_server_status, (void *)id);
+ silc_sftp_server_status, SILC_32_TO_PTR(id));
+
}
break;
case SILC_SFTP_READ:
{
unsigned char *hdata;
- uint32 hdata_len;
- uint64 offset;
- uint32 len;
+ SilcUInt32 hdata_len;
+ SilcUInt64 offset;
+ SilcUInt32 len;
SILC_LOG_DEBUG(("Read request"));
ret = silc_buffer_unformat(&buf,
SILC_STR_UI_INT(&id),
- SILC_STR_UI32_NSTRING(&hdata,
+ SILC_STR_UI32_NSTRING(&hdata,
&hdata_len),
SILC_STR_UI_INT64(&offset),
SILC_STR_UI_INT(&len),
break;
}
+ /* Read operation */
+ server->fs->fs->sftp_read(server->fs->fs_context, sftp,
+ handle, offset, len,
+ silc_sftp_server_data, SILC_32_TO_PTR(id));
+
/* Call monitor */
if (server->monitors & SILC_SFTP_MONITOR_READ && server->monitor) {
mdata.offset = offset;
(*server->monitor)(sftp, SILC_SFTP_MONITOR_READ, &mdata,
server->monitor_context);
}
-
- /* Read operation */
- server->fs->fs->sftp_read(server->fs->fs_context, sftp,
- handle, offset, len,
- silc_sftp_server_data, (void *)id);
}
break;
case SILC_SFTP_WRITE:
{
unsigned char *hdata;
- uint32 hdata_len;
- uint64 offset;
+ SilcUInt32 hdata_len;
+ SilcUInt64 offset;
unsigned char *data;
- uint32 data_len;
+ SilcUInt32 data_len;
SILC_LOG_DEBUG(("Read request"));
ret = silc_buffer_unformat(&buf,
SILC_STR_UI_INT(&id),
- SILC_STR_UI32_NSTRING(&hdata,
+ SILC_STR_UI32_NSTRING(&hdata,
&hdata_len),
SILC_STR_UI_INT64(&offset),
- SILC_STR_UI32_NSTRING(&data,
+ SILC_STR_UI32_NSTRING(&data,
&data_len),
SILC_STR_END);
if (ret < 0)
break;
}
+ /* Write operation */
+ server->fs->fs->sftp_write(server->fs->fs_context, sftp, handle, offset,
+ (const unsigned char *)data, data_len,
+ silc_sftp_server_status, SILC_32_TO_PTR(id));
+
/* Call monitor */
if (server->monitors & SILC_SFTP_MONITOR_WRITE && server->monitor) {
mdata.offset = offset;
(*server->monitor)(sftp, SILC_SFTP_MONITOR_WRITE, &mdata,
server->monitor_context);
}
-
- /* Write operation */
- server->fs->fs->sftp_write(server->fs->fs_context, sftp, handle, offset,
- (const unsigned char *)data, data_len,
- silc_sftp_server_status, (void *)id);
}
break;
/* Remove operation */
server->fs->fs->sftp_remove(server->fs->fs_context, sftp, filename,
- silc_sftp_server_status, (void *)id);
+ silc_sftp_server_status, SILC_32_TO_PTR(id));
silc_free(filename);
}
}
/* Rename operation */
- server->fs->fs->sftp_rename(server->fs->fs_context, sftp,
+ server->fs->fs->sftp_rename(server->fs->fs_context, sftp,
filename, newname,
- silc_sftp_server_status, (void *)id);
+ silc_sftp_server_status, SILC_32_TO_PTR(id));
silc_free(filename);
silc_free(newname);
case SILC_SFTP_MKDIR:
{
unsigned char *attr_buf;
- uint32 attr_len = 0;
+ SilcUInt32 attr_len = 0;
SilcBufferStruct tmpbuf;
SILC_LOG_DEBUG(("Mkdir request"));
if (attr_len) {
silc_buffer_set(&tmpbuf, attr_buf, attr_len);
attrs = silc_sftp_attr_decode(&tmpbuf);
+ if (!attrs)
+ goto failure;
} else {
attrs = silc_calloc(1, sizeof(*attrs));
+ if (!attrs)
+ goto failure;
}
/* Call monitor */
/* Mkdir operation */
server->fs->fs->sftp_mkdir(server->fs->fs_context, sftp, path, attrs,
- silc_sftp_server_status, (void *)id);
+ silc_sftp_server_status, SILC_32_TO_PTR(id));
silc_sftp_attr_free(attrs);
silc_free(path);
/* Rmdir operation */
server->fs->fs->sftp_rmdir(server->fs->fs_context, sftp, path,
- silc_sftp_server_status, (void *)id);
+ silc_sftp_server_status, SILC_32_TO_PTR(id));
silc_free(path);
}
/* Opendir operation */
server->fs->fs->sftp_opendir(server->fs->fs_context, sftp, path,
- silc_sftp_server_handle, (void *)id);
+ silc_sftp_server_handle, SILC_32_TO_PTR(id));
silc_free(path);
}
case SILC_SFTP_READDIR:
{
unsigned char *hdata;
- uint32 hdata_len;
+ SilcUInt32 hdata_len;
SILC_LOG_DEBUG(("Readdir request"));
ret = silc_buffer_unformat(&buf,
SILC_STR_UI_INT(&id),
- SILC_STR_UI32_NSTRING(&hdata,
+ SILC_STR_UI32_NSTRING(&hdata,
&hdata_len),
SILC_STR_END);
if (ret < 0)
/* Readdir operation */
server->fs->fs->sftp_readdir(server->fs->fs_context, sftp, handle,
- silc_sftp_server_name, (void *)id);
+ silc_sftp_server_name, SILC_32_TO_PTR(id));
}
break;
/* Stat operation */
server->fs->fs->sftp_stat(server->fs->fs_context, sftp, path,
- silc_sftp_server_attr, (void *)id);
+ silc_sftp_server_attr, SILC_32_TO_PTR(id));
silc_free(path);
}
/* Lstat operation */
server->fs->fs->sftp_lstat(server->fs->fs_context, sftp, path,
- silc_sftp_server_attr, (void *)id);
+ silc_sftp_server_attr, SILC_32_TO_PTR(id));
silc_free(path);
}
case SILC_SFTP_FSTAT:
{
unsigned char *hdata;
- uint32 hdata_len;
+ SilcUInt32 hdata_len;
SILC_LOG_DEBUG(("Fstat request"));
ret = silc_buffer_unformat(&buf,
SILC_STR_UI_INT(&id),
- SILC_STR_UI32_NSTRING(&hdata,
+ SILC_STR_UI32_NSTRING(&hdata,
&hdata_len),
SILC_STR_END);
if (ret < 0)
/* Fstat operation */
server->fs->fs->sftp_fstat(server->fs->fs_context, sftp, handle,
- silc_sftp_server_attr, (void *)id);
+ silc_sftp_server_attr, SILC_32_TO_PTR(id));
}
break;
case SILC_SFTP_SETSTAT:
{
unsigned char *attr_buf;
- uint32 attr_len = 0;
+ SilcUInt32 attr_len = 0;
SilcBufferStruct tmpbuf;
SILC_LOG_DEBUG(("Setstat request"));
if (attr_len) {
silc_buffer_set(&tmpbuf, attr_buf, attr_len);
attrs = silc_sftp_attr_decode(&tmpbuf);
+ if (!attrs)
+ goto failure;
} else {
attrs = silc_calloc(1, sizeof(*attrs));
+ if (!attrs)
+ goto failure;
}
/* Call monitor */
/* Setstat operation */
server->fs->fs->sftp_setstat(server->fs->fs_context, sftp, path, attrs,
- silc_sftp_server_status, (void *)id);
+ silc_sftp_server_status, SILC_32_TO_PTR(id));
silc_sftp_attr_free(attrs);
silc_free(path);
case SILC_SFTP_FSETSTAT:
{
unsigned char *hdata, *attr_buf;
- uint32 hdata_len, attr_len = 0;
+ SilcUInt32 hdata_len, attr_len = 0;
SilcBufferStruct tmpbuf;
SILC_LOG_DEBUG(("Fsetstat request"));
ret = silc_buffer_unformat(&buf,
SILC_STR_UI_INT(&id),
- SILC_STR_UI32_NSTRING(&hdata,
+ SILC_STR_UI32_NSTRING(&hdata,
&hdata_len),
SILC_STR_UI32_NSTRING(&attr_buf,
&attr_len),
if (attr_len) {
silc_buffer_set(&tmpbuf, attr_buf, attr_len);
attrs = silc_sftp_attr_decode(&tmpbuf);
+ if (!attrs)
+ goto failure;
} else {
attrs = silc_calloc(1, sizeof(*attrs));
+ if (!attrs)
+ goto failure;
}
/* Get the handle */
}
/* Fsetstat operation */
- server->fs->fs->sftp_fsetstat(server->fs->fs_context, sftp,
+ server->fs->fs->sftp_fsetstat(server->fs->fs_context, sftp,
handle, attrs,
- silc_sftp_server_status, (void *)id);
+ silc_sftp_server_status,
+ SILC_32_TO_PTR(id));
silc_sftp_attr_free(attrs);
}
/* Readlink operation */
server->fs->fs->sftp_readlink(server->fs->fs_context, sftp, path,
- silc_sftp_server_name, (void *)id);
+ silc_sftp_server_name, SILC_32_TO_PTR(id));
silc_free(path);
}
/* Symlink operation */
server->fs->fs->sftp_symlink(server->fs->fs_context, sftp, path, target,
- silc_sftp_server_status, (void *)id);
+ silc_sftp_server_status, SILC_32_TO_PTR(id));
silc_free(path);
silc_free(target);
/* Realpath operation */
server->fs->fs->sftp_realpath(server->fs->fs_context, sftp, path,
- silc_sftp_server_name, (void *)id);
+ silc_sftp_server_name, SILC_32_TO_PTR(id));
silc_free(path);
}
{
char *request = NULL;
unsigned char *data;
- uint32 data_len;
+ SilcUInt32 data_len;
SILC_LOG_DEBUG(("Extended request"));
}
/* Extended operation */
- server->fs->fs->sftp_extended(server->fs->fs_context, sftp,
+ server->fs->fs->sftp_extended(server->fs->fs_context, sftp,
request, data, data_len,
- silc_sftp_server_extended, (void *)id);
+ silc_sftp_server_extended,
+ SILC_32_TO_PTR(id));
silc_free(request);
}
projects / silc.git / blobdiff