819 lines
22 KiB
C
819 lines
22 KiB
C
/* server.c
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*
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* Copyright (C) 2014-2020 wolfSSL Inc.
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*
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* This file is part of wolfSSH.
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*
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* wolfSSH is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* wolfSSH is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with wolfSSH. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define WOLFSSH_TEST_SERVER
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#define WOLFSSH_TEST_THREADING
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#ifdef WOLFSSL_USER_SETTINGS
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#include <wolfssl/wolfcrypt/settings.h>
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#else
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#include <wolfssl/options.h>
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#endif
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#include <wolfssl/wolfcrypt/sha256.h>
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#include <wolfssl/wolfcrypt/coding.h>
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#include <wolfssh/ssh.h>
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#include <wolfssh/test.h>
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#include <wolfssl/wolfcrypt/ecc.h>
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#include "examples/server/server.h"
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#ifdef NO_FILESYSTEM
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#include <wolfssh/certs_test.h>
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#ifdef WOLFSSH_SCP
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#include <wolfssh/wolfscp.h>
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#endif
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#endif
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#ifndef NO_WOLFSSH_SERVER
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static const char serverBanner[] = "wolfSSH Example Server\n";
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typedef struct {
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WOLFSSH* ssh;
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SOCKET_T fd;
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word32 id;
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char nonBlock;
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} thread_ctx_t;
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#ifndef EXAMPLE_HIGHWATER_MARK
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#define EXAMPLE_HIGHWATER_MARK 0x3FFF8000 /* 1GB - 32kB */
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#endif
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#ifndef EXAMPLE_BUFFER_SZ
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#define EXAMPLE_BUFFER_SZ 4096
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#endif
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#define SCRATCH_BUFFER_SZ 1200
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static byte find_char(const byte* str, const byte* buf, word32 bufSz)
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{
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const byte* cur;
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while (bufSz) {
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cur = str;
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while (*cur != '\0') {
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if (*cur == *buf)
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return *cur;
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cur++;
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}
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buf++;
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bufSz--;
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}
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return 0;
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}
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static int dump_stats(thread_ctx_t* ctx)
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{
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char stats[1024];
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word32 statsSz;
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word32 txCount, rxCount, seq, peerSeq;
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wolfSSH_GetStats(ctx->ssh, &txCount, &rxCount, &seq, &peerSeq);
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WSNPRINTF(stats, sizeof(stats),
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"Statistics for Thread #%u:\r\n"
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" txCount = %u\r\n rxCount = %u\r\n"
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" seq = %u\r\n peerSeq = %u\r\n",
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ctx->id, txCount, rxCount, seq, peerSeq);
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statsSz = (word32)strlen(stats);
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fprintf(stderr, "%s", stats);
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return wolfSSH_stream_send(ctx->ssh, (byte*)stats, statsSz);
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}
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static int NonBlockSSH_accept(WOLFSSH* ssh)
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{
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int ret;
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int error;
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SOCKET_T sockfd;
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int select_ret = 0;
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ret = wolfSSH_accept(ssh);
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error = wolfSSH_get_error(ssh);
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sockfd = (SOCKET_T)wolfSSH_get_fd(ssh);
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while (ret != WS_SUCCESS &&
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(error == WS_WANT_READ || error == WS_WANT_WRITE))
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{
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if (error == WS_WANT_READ)
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printf("... client would read block\n");
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else if (error == WS_WANT_WRITE)
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printf("... client would write block\n");
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select_ret = tcp_select(sockfd, 1);
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if (select_ret == WS_SELECT_RECV_READY ||
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select_ret == WS_SELECT_ERROR_READY ||
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error == WS_WANT_WRITE)
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{
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ret = wolfSSH_accept(ssh);
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error = wolfSSH_get_error(ssh);
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}
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else if (select_ret == WS_SELECT_TIMEOUT)
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error = WS_WANT_READ;
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else
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error = WS_FATAL_ERROR;
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}
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return ret;
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}
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static THREAD_RETURN WOLFSSH_THREAD server_worker(void* vArgs)
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{
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int ret;
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thread_ctx_t* threadCtx = (thread_ctx_t*)vArgs;
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#if defined(WOLFSSH_SCP) && defined(NO_FILESYSTEM)
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ScpBuffer scpBufferRecv, scpBufferSend;
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byte fileBuffer[49000];
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byte fileTmp[] = "wolfSSH SCP buffer file";
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WMEMSET(&scpBufferRecv, 0, sizeof(ScpBuffer));
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scpBufferRecv.buffer = fileBuffer;
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scpBufferRecv.bufferSz = sizeof(fileBuffer);
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wolfSSH_SetScpRecvCtx(threadCtx->ssh, (void*)&scpBufferRecv);
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/* make buffer file to send if asked */
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WMEMSET(&scpBufferSend, 0, sizeof(ScpBuffer));
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WMEMCPY(scpBufferSend.name, "test.txt", sizeof("test.txt"));
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scpBufferSend.nameSz = WSTRLEN("test.txt");
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scpBufferSend.buffer = fileTmp;
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scpBufferSend.bufferSz = sizeof(fileBuffer);
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scpBufferSend.fileSz = sizeof(fileTmp);
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scpBufferSend.mode = 0x1A4;
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wolfSSH_SetScpSendCtx(threadCtx->ssh, (void*)&scpBufferSend);
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#endif
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if (!threadCtx->nonBlock)
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ret = wolfSSH_accept(threadCtx->ssh);
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else
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ret = NonBlockSSH_accept(threadCtx->ssh);
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if (ret == WS_SUCCESS) {
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byte* buf = NULL;
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byte* tmpBuf;
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int bufSz, backlogSz = 0, rxSz, txSz, stop = 0, txSum;
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do {
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bufSz = EXAMPLE_BUFFER_SZ + backlogSz;
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tmpBuf = (byte*)realloc(buf, bufSz);
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if (tmpBuf == NULL)
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stop = 1;
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else
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buf = tmpBuf;
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if (!stop) {
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do {
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rxSz = wolfSSH_stream_read(threadCtx->ssh,
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buf + backlogSz,
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EXAMPLE_BUFFER_SZ);
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if (rxSz <= 0)
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rxSz = wolfSSH_get_error(threadCtx->ssh);
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} while (rxSz == WS_WANT_READ || rxSz == WS_WANT_WRITE);
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if (rxSz > 0) {
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backlogSz += rxSz;
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txSum = 0;
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txSz = 0;
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while (backlogSz != txSum && txSz >= 0 && !stop) {
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txSz = wolfSSH_stream_send(threadCtx->ssh,
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buf + txSum,
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backlogSz - txSum);
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if (txSz > 0) {
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byte c;
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const byte matches[] = { 0x03, 0x05, 0x06, 0x00 };
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c = find_char(matches, buf + txSum, txSz);
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switch (c) {
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case 0x03:
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stop = 1;
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break;
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case 0x06:
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if (wolfSSH_TriggerKeyExchange(threadCtx->ssh)
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!= WS_SUCCESS)
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stop = 1;
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break;
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case 0x05:
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if (dump_stats(threadCtx) <= 0)
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stop = 1;
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break;
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}
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txSum += txSz;
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}
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else if (txSz != WS_REKEYING)
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stop = 1;
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}
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if (txSum < backlogSz)
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memmove(buf, buf + txSum, backlogSz - txSum);
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backlogSz -= txSum;
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}
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else
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stop = 1;
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}
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} while (!stop);
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free(buf);
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} else if (ret == WS_SCP_COMPLETE) {
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printf("scp file transfer completed\n");
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#if defined(WOLFSSH_SCP) && defined(NO_FILESYSTEM)
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if (scpBufferRecv.fileSz > 0) {
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word32 z;
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printf("file name : %s\n", scpBufferRecv.name);
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printf(" size : %d\n", scpBufferRecv.fileSz);
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printf(" mode : %o\n", scpBufferRecv.mode);
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printf(" mTime : %lu\n", scpBufferRecv.mTime);
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printf("\n");
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for (z = 0; z < scpBufferRecv.fileSz; z++)
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printf("%c", scpBufferRecv.buffer[z]);
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printf("\n");
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}
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#endif
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} else if (ret == WS_SFTP_COMPLETE) {
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printf("Use example/echoserver/echoserver for SFTP\n");
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}
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wolfSSH_stream_exit(threadCtx->ssh, 0);
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WCLOSESOCKET(threadCtx->fd);
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wolfSSH_free(threadCtx->ssh);
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free(threadCtx);
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return 0;
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}
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#ifndef NO_FILESYSTEM
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static int load_file(const char* fileName, byte* buf, word32 bufSz)
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{
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FILE* file;
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word32 fileSz;
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word32 readSz;
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if (fileName == NULL) return 0;
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if (WFOPEN(&file, fileName, "rb") != 0)
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return 0;
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fseek(file, 0, SEEK_END);
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fileSz = (word32)ftell(file);
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rewind(file);
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if (fileSz > bufSz) {
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fclose(file);
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return 0;
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}
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readSz = (word32)fread(buf, 1, fileSz, file);
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if (readSz < fileSz) {
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fclose(file);
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return 0;
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}
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fclose(file);
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return fileSz;
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}
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#endif /* !NO_FILESYSTEM */
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/* returns buffer size on success */
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static int load_key(byte isEcc, byte* buf, word32 bufSz)
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{
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word32 sz = 0;
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#ifndef NO_FILESYSTEM
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const char* bufName;
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bufName = isEcc ? "./keys/server-key-ecc.der" :
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"./keys/server-key-rsa.der" ;
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sz = load_file(bufName, buf, bufSz);
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#else
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/* using buffers instead */
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if (isEcc) {
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if (sizeof_ecc_key_der_256 > bufSz) {
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return 0;
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}
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WMEMCPY(buf, ecc_key_der_256, sizeof_ecc_key_der_256);
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sz = sizeof_ecc_key_der_256;
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}
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else {
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if (sizeof_rsa_key_der_2048 > bufSz) {
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return 0;
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}
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WMEMCPY(buf, rsa_key_der_2048, sizeof_rsa_key_der_2048);
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sz = sizeof_rsa_key_der_2048;
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}
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#endif
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return sz;
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}
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static INLINE void c32toa(word32 u32, byte* c)
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{
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c[0] = (u32 >> 24) & 0xff;
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c[1] = (u32 >> 16) & 0xff;
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c[2] = (u32 >> 8) & 0xff;
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c[3] = u32 & 0xff;
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}
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/* Map user names to passwords */
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/* Use arrays for username and p. The password or public key can
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* be hashed and the hash stored here. Then I won't need the type. */
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typedef struct PwMap {
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byte type;
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byte username[32];
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word32 usernameSz;
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byte p[WC_SHA256_DIGEST_SIZE];
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struct PwMap* next;
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} PwMap;
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typedef struct PwMapList {
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PwMap* head;
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} PwMapList;
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static PwMap* PwMapNew(PwMapList* list, byte type, const byte* username,
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word32 usernameSz, const byte* p, word32 pSz)
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{
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PwMap* map;
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map = (PwMap*)malloc(sizeof(PwMap));
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if (map != NULL) {
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wc_Sha256 sha;
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byte flatSz[4];
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map->type = type;
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if (usernameSz >= sizeof(map->username))
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usernameSz = sizeof(map->username) - 1;
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memcpy(map->username, username, usernameSz + 1);
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map->username[usernameSz] = 0;
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map->usernameSz = usernameSz;
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wc_InitSha256(&sha);
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c32toa(pSz, flatSz);
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wc_Sha256Update(&sha, flatSz, sizeof(flatSz));
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wc_Sha256Update(&sha, p, pSz);
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wc_Sha256Final(&sha, map->p);
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map->next = list->head;
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list->head = map;
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}
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return map;
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}
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static void PwMapListDelete(PwMapList* list)
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{
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if (list != NULL) {
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PwMap* head = list->head;
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while (head != NULL) {
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PwMap* cur = head;
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head = head->next;
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memset(cur, 0, sizeof(PwMap));
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free(cur);
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}
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}
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}
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static const char samplePasswordBuffer[] =
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"jill:upthehill\n"
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"jack:fetchapail\n";
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static const char samplePublicKeyEccBuffer[] =
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"ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAA"
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"BBBNkI5JTP6D0lF42tbxX19cE87hztUS6FSDoGvPfiU0CgeNSbI+aFdKIzTP5CQEJSvm25"
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"qUzgDtH7oyaQROUnNvk= hansel\n"
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"ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAA"
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"BBBKAtH8cqaDbtJFjtviLobHBmjCtG56DMkP6A4M2H9zX2/YCg1h9bYS7WHd9UQDwXO1Hh"
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"IZzRYecXh7SG9P4GhRY= gretel\n";
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static const char samplePublicKeyRsaBuffer[] =
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"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9P3ZFowOsONXHD5MwWiCciXytBRZGho"
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"MNiisWSgUs5HdHcACuHYPi2W6Z1PBFmBWT9odOrGRjoZXJfDDoPi+j8SSfDGsc/hsCmc3G"
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"p2yEhUZUEkDhtOXyqjns1ickC9Gh4u80aSVtwHRnJZh9xPhSq5tLOhId4eP61s+a5pwjTj"
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"nEhBaIPUJO2C/M0pFnnbZxKgJlX7t1Doy7h5eXxviymOIvaCZKU+x5OopfzM/wFkey0EPW"
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"NmzI5y/+pzU5afsdeEWdiQDIQc80H6Pz8fsoFPvYSG+s4/wz0duu7yeeV1Ypoho65Zr+pE"
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"nIf7dO0B8EblgWt+ud+JI8wrAhfE4x hansel\n"
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"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCqDwRVTRVk/wjPhoo66+Mztrc31KsxDZ"
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"+kAV0139PHQ+wsueNpba6jNn5o6mUTEOrxrz0LMsDJOBM7CmG0983kF4gRIihECpQ0rcjO"
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"P6BSfbVTE9mfIK5IsUiZGd8SoE9kSV2pJ2FvZeBQENoAxEFk0zZL9tchPS+OCUGbK4SDjz"
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"uNZl/30Mczs73N3MBzi6J1oPo7sFlqzB6ecBjK2Kpjus4Y1rYFphJnUxtKvB0s+hoaadru"
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"biE57dK6BrH5iZwVLTQKux31uCJLPhiktI3iLbdlGZEctJkTasfVSsUizwVIyRjhVKmbdI"
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"RGwkU38D043AR1h0mUoGCPIKuqcFMf gretel\n";
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static int LoadPasswordBuffer(byte* buf, word32 bufSz, PwMapList* list)
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{
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char* str = (char*)buf;
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char* delimiter;
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char* username;
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char* password;
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/* Each line of passwd.txt is in the format
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* username:password\n
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* This function modifies the passed-in buffer. */
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if (list == NULL)
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return -1;
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if (buf == NULL || bufSz == 0)
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return 0;
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while (*str != 0) {
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delimiter = strchr(str, ':');
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if (delimiter == NULL) {
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return -1;
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}
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username = str;
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*delimiter = 0;
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password = delimiter + 1;
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str = strchr(password, '\n');
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if (str == NULL) {
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return -1;
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}
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*str = 0;
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str++;
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if (PwMapNew(list, WOLFSSH_USERAUTH_PASSWORD,
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(byte*)username, (word32)strlen(username),
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(byte*)password, (word32)strlen(password)) == NULL ) {
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return -1;
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}
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}
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return 0;
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}
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static int LoadPublicKeyBuffer(byte* buf, word32 bufSz, PwMapList* list)
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{
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char* str = (char*)buf;
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char* delimiter;
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byte* publicKey64;
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word32 publicKey64Sz;
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byte* username;
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word32 usernameSz;
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byte publicKey[300];
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word32 publicKeySz;
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/* Each line of passwd.txt is in the format
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* ssh-rsa AAAB3BASE64ENCODEDPUBLICKEYBLOB username\n
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* This function modifies the passed-in buffer. */
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if (list == NULL)
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return -1;
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if (buf == NULL || bufSz == 0)
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return 0;
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while (*str != 0) {
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/* Skip the public key type. This example will always be ssh-rsa. */
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delimiter = strchr(str, ' ');
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if (delimiter == NULL) {
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return -1;
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}
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str = delimiter + 1;
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delimiter = strchr(str, ' ');
|
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if (delimiter == NULL) {
|
|
return -1;
|
|
}
|
|
publicKey64 = (byte*)str;
|
|
*delimiter = 0;
|
|
publicKey64Sz = (word32)(delimiter - str);
|
|
str = delimiter + 1;
|
|
delimiter = strchr(str, '\n');
|
|
if (delimiter == NULL) {
|
|
return -1;
|
|
}
|
|
username = (byte*)str;
|
|
*delimiter = 0;
|
|
usernameSz = (word32)(delimiter - str);
|
|
str = delimiter + 1;
|
|
publicKeySz = sizeof(publicKey);
|
|
|
|
if (Base64_Decode(publicKey64, publicKey64Sz,
|
|
publicKey, &publicKeySz) != 0) {
|
|
|
|
return -1;
|
|
}
|
|
|
|
if (PwMapNew(list, WOLFSSH_USERAUTH_PUBLICKEY,
|
|
username, usernameSz,
|
|
publicKey, publicKeySz) == NULL ) {
|
|
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wsUserAuth(byte authType,
|
|
WS_UserAuthData* authData,
|
|
void* ctx)
|
|
{
|
|
PwMapList* list;
|
|
PwMap* map;
|
|
byte authHash[WC_SHA256_DIGEST_SIZE];
|
|
|
|
if (ctx == NULL) {
|
|
fprintf(stderr, "wsUserAuth: ctx not set");
|
|
return WOLFSSH_USERAUTH_FAILURE;
|
|
}
|
|
|
|
if (authType != WOLFSSH_USERAUTH_PASSWORD &&
|
|
authType != WOLFSSH_USERAUTH_PUBLICKEY) {
|
|
|
|
return WOLFSSH_USERAUTH_FAILURE;
|
|
}
|
|
|
|
/* Hash the password or public key with its length. */
|
|
{
|
|
wc_Sha256 sha;
|
|
byte flatSz[4];
|
|
wc_InitSha256(&sha);
|
|
if (authType == WOLFSSH_USERAUTH_PASSWORD) {
|
|
c32toa(authData->sf.password.passwordSz, flatSz);
|
|
wc_Sha256Update(&sha, flatSz, sizeof(flatSz));
|
|
wc_Sha256Update(&sha,
|
|
authData->sf.password.password,
|
|
authData->sf.password.passwordSz);
|
|
}
|
|
else if (authType == WOLFSSH_USERAUTH_PUBLICKEY) {
|
|
c32toa(authData->sf.publicKey.publicKeySz, flatSz);
|
|
wc_Sha256Update(&sha, flatSz, sizeof(flatSz));
|
|
wc_Sha256Update(&sha,
|
|
authData->sf.publicKey.publicKey,
|
|
authData->sf.publicKey.publicKeySz);
|
|
}
|
|
wc_Sha256Final(&sha, authHash);
|
|
}
|
|
|
|
list = (PwMapList*)ctx;
|
|
map = list->head;
|
|
|
|
while (map != NULL) {
|
|
if (authData->usernameSz == map->usernameSz &&
|
|
memcmp(authData->username, map->username, map->usernameSz) == 0) {
|
|
|
|
if (authData->type == map->type) {
|
|
if (memcmp(map->p, authHash, WC_SHA256_DIGEST_SIZE) == 0) {
|
|
return WOLFSSH_USERAUTH_SUCCESS;
|
|
}
|
|
else {
|
|
return (authType == WOLFSSH_USERAUTH_PASSWORD ?
|
|
WOLFSSH_USERAUTH_INVALID_PASSWORD :
|
|
WOLFSSH_USERAUTH_INVALID_PUBLICKEY);
|
|
}
|
|
}
|
|
else {
|
|
return WOLFSSH_USERAUTH_INVALID_AUTHTYPE;
|
|
}
|
|
}
|
|
map = map->next;
|
|
}
|
|
|
|
return WOLFSSH_USERAUTH_INVALID_USER;
|
|
}
|
|
|
|
|
|
static void ShowUsage(void)
|
|
{
|
|
printf("server %s\n", LIBWOLFSSH_VERSION_STRING);
|
|
printf(" -h display this help and exit\n");
|
|
printf(" -m allow multiple connections\n");
|
|
printf(" -e use ECC private key\n");
|
|
printf(" -N use non-blocking sockets\n");
|
|
}
|
|
|
|
|
|
THREAD_RETURN WOLFSSH_THREAD server_test(void* args)
|
|
{
|
|
WOLFSSH_CTX* ctx = NULL;
|
|
PwMapList pwMapList;
|
|
SOCKET_T listenFd = 0;
|
|
word32 defaultHighwater = EXAMPLE_HIGHWATER_MARK;
|
|
word32 threadCount = 0;
|
|
word16 port = wolfSshPort;
|
|
char multipleConnections = 0;
|
|
char useEcc = 0;
|
|
int ch;
|
|
char nonBlock = 0;
|
|
|
|
int argc = ((func_args*)args)->argc;
|
|
char** argv = ((func_args*)args)->argv;
|
|
((func_args*)args)->return_code = 0;
|
|
|
|
while ((ch = mygetopt(argc, argv, "hmeN")) != -1) {
|
|
switch (ch) {
|
|
case 'h' :
|
|
ShowUsage();
|
|
exit(EXIT_SUCCESS);
|
|
|
|
case 'm' :
|
|
multipleConnections = 1;
|
|
break;
|
|
|
|
case 'e' :
|
|
useEcc = 1;
|
|
break;
|
|
|
|
case 'N' :
|
|
nonBlock = 1;
|
|
break;
|
|
|
|
default:
|
|
ShowUsage();
|
|
exit(MY_EX_USAGE);
|
|
}
|
|
}
|
|
myoptind = 0; /* reset for test cases */
|
|
|
|
#ifdef NO_RSA
|
|
/* If wolfCrypt isn't built with RSA, force ECC on. */
|
|
useEcc = 1;
|
|
#endif
|
|
|
|
if (wolfSSH_Init() != WS_SUCCESS) {
|
|
fprintf(stderr, "Couldn't initialize wolfSSH.\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
ctx = wolfSSH_CTX_new(WOLFSSH_ENDPOINT_SERVER, NULL);
|
|
if (ctx == NULL) {
|
|
fprintf(stderr, "Couldn't allocate SSH CTX data.\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
memset(&pwMapList, 0, sizeof(pwMapList));
|
|
wolfSSH_SetUserAuth(ctx, wsUserAuth);
|
|
wolfSSH_CTX_SetBanner(ctx, serverBanner);
|
|
|
|
{
|
|
const char* bufName;
|
|
byte buf[SCRATCH_BUFFER_SZ];
|
|
word32 bufSz;
|
|
|
|
bufSz = load_key(useEcc, buf, SCRATCH_BUFFER_SZ);
|
|
if (bufSz == 0) {
|
|
fprintf(stderr, "Couldn't load key.\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if (wolfSSH_CTX_UsePrivateKey_buffer(ctx, buf, bufSz,
|
|
WOLFSSH_FORMAT_ASN1) < 0) {
|
|
fprintf(stderr, "Couldn't use key buffer.\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
bufSz = (word32)strlen(samplePasswordBuffer);
|
|
memcpy(buf, samplePasswordBuffer, bufSz);
|
|
buf[bufSz] = 0;
|
|
LoadPasswordBuffer(buf, bufSz, &pwMapList);
|
|
|
|
bufName = useEcc ? samplePublicKeyEccBuffer :
|
|
samplePublicKeyRsaBuffer;
|
|
bufSz = (word32)strlen(bufName);
|
|
memcpy(buf, bufName, bufSz);
|
|
buf[bufSz] = 0;
|
|
LoadPublicKeyBuffer(buf, bufSz, &pwMapList);
|
|
}
|
|
|
|
tcp_listen(&listenFd, &port, 1);
|
|
|
|
do {
|
|
SOCKET_T clientFd = 0;
|
|
SOCKADDR_IN_T clientAddr;
|
|
socklen_t clientAddrSz = sizeof(clientAddr);
|
|
#ifndef SINGLE_THREADED
|
|
THREAD_TYPE thread;
|
|
#endif
|
|
WOLFSSH* ssh;
|
|
thread_ctx_t* threadCtx;
|
|
|
|
threadCtx = (thread_ctx_t*)malloc(sizeof(thread_ctx_t));
|
|
if (threadCtx == NULL) {
|
|
fprintf(stderr, "Couldn't allocate thread context data.\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
ssh = wolfSSH_new(ctx);
|
|
if (ssh == NULL) {
|
|
fprintf(stderr, "Couldn't allocate SSH data.\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
wolfSSH_SetUserAuthCtx(ssh, &pwMapList);
|
|
/* Use the session object for its own highwater callback ctx */
|
|
if (defaultHighwater > 0) {
|
|
wolfSSH_SetHighwaterCtx(ssh, (void*)ssh);
|
|
wolfSSH_SetHighwater(ssh, defaultHighwater);
|
|
}
|
|
|
|
clientFd = accept(listenFd, (struct sockaddr*)&clientAddr,
|
|
&clientAddrSz);
|
|
if (clientFd == -1)
|
|
err_sys("tcp accept failed");
|
|
|
|
if (nonBlock)
|
|
tcp_set_nonblocking(&clientFd);
|
|
|
|
wolfSSH_set_fd(ssh, (int)clientFd);
|
|
|
|
threadCtx->ssh = ssh;
|
|
threadCtx->fd = clientFd;
|
|
threadCtx->id = threadCount++;
|
|
threadCtx->nonBlock = nonBlock;
|
|
|
|
#ifndef SINGLE_THREADED
|
|
ThreadStart(server_worker, threadCtx, &thread);
|
|
|
|
if (multipleConnections)
|
|
ThreadDetach(thread);
|
|
else
|
|
ThreadJoin(thread);
|
|
#else
|
|
server_worker(threadCtx);
|
|
#endif /* SINGLE_THREADED */
|
|
} while (multipleConnections);
|
|
|
|
PwMapListDelete(&pwMapList);
|
|
wolfSSH_CTX_free(ctx);
|
|
if (wolfSSH_Cleanup() != WS_SUCCESS) {
|
|
fprintf(stderr, "Couldn't clean up wolfSSH.\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
#if defined(HAVE_ECC) && defined(FP_ECC) && defined(HAVE_THREAD_LS)
|
|
wc_ecc_fp_free(); /* free per thread cache */
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* NO_WOLFSSH_SERVER */
|
|
|
|
|
|
#ifndef NO_MAIN_DRIVER
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
func_args args;
|
|
|
|
args.argc = argc;
|
|
args.argv = argv;
|
|
args.return_code = 0;
|
|
|
|
WSTARTTCP();
|
|
|
|
ChangeToWolfSshRoot();
|
|
#ifdef DEBUG_WOLFSSH
|
|
wolfSSH_Debugging_ON();
|
|
#endif
|
|
|
|
wolfSSH_Init();
|
|
|
|
#ifndef NO_WOLFSSH_SERVER
|
|
server_test(&args);
|
|
#else
|
|
printf("wolfSSH compiled without server support\n");
|
|
#endif
|
|
|
|
wolfSSH_Cleanup();
|
|
|
|
return args.return_code;
|
|
}
|
|
|
|
|
|
int myoptind = 0;
|
|
char* myoptarg = NULL;
|
|
|
|
#endif /* NO_MAIN_DRIVER */
|