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Code Issues Releases Wiki Activity

Update libssh

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This commit is contained in:
Nicolas Viennot 2013-11-06 19:39:12 -05:00
parent ed6224ba73
commit 1d16931564
25 changed files with 322 additions and 147 deletions
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8
libssh/CMakeLists.txt
View File

@ -71,6 +71,13 @@ if (WITH_GSSAPI)
find_package(GSSAPI)
endif (WITH_GSSAPI)
if (WITH_NACL)
find_package(NaCl)
if (NOT NACL_FOUND)
set(WITH_NACL OFF)
endif (NOT NACL_FOUND)
endif (WITH_NACL)
# config.h checks
include(ConfigureChecks.cmake)
configure_file(config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config.h)
@ -125,6 +132,7 @@ message(STATUS "********** ${PROJECT_NAME} build options : **********")
message(STATUS "zlib support: ${WITH_ZLIB}")
message(STATUS "libgcrypt support: ${WITH_GCRYPT}")
message(STATUS "libnacl support: ${WITH_NACL}")
message(STATUS "SSH-1 support: ${WITH_SSH1}")
message(STATUS "SFTP support: ${WITH_SFTP}")
message(STATUS "Server support : ${WITH_SERVER}")

1
libssh/ConfigureChecks.cmake
View File

@ -50,6 +50,7 @@ check_include_file(argp.h HAVE_ARGP_H)
check_include_file(pty.h HAVE_PTY_H)
check_include_file(termios.h HAVE_TERMIOS_H)
check_include_file(unistd.h HAVE_UNISTD_H)
check_include_file(util.h HAVE_UTIL_H)
if (WIN32)
check_include_files("winsock2.h;ws2tcpip.h;wspiapi.h" HAVE_WSPIAPI_H)

6
libssh/DefineOptions.cmake
View File

@ -13,7 +13,7 @@ option(WITH_TESTING "Build with unit tests" OFF)
option(WITH_CLIENT_TESTING "Build with client tests; requires a running sshd" OFF)
option(WITH_BENCHMARKS "Build benchmarks tools" OFF)
option(WITH_EXAMPLES "Build examples" ON)
option(WITH_NACL "Build with libnacl (curve25519" ON)
if (WITH_ZLIB)
set(WITH_LIBZ ON)
else (WITH_ZLIB)
@ -27,3 +27,7 @@ endif(WITH_BENCHMARKS)
if (WITH_TESTING)
set(WITH_STATIC_LIB ON)
endif (WITH_TESTING)
if (WITH_NACL)
set(WITH_NACL ON)
endif (WITH_NACL)

4
libssh/cmake/Modules/DefinePlatformDefaults.cmake
View File

@ -26,3 +26,7 @@ endif (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
if (CMAKE_SYSTEM_NAME MATCHES "OS2")
set(OS2 TRUE)
endif (CMAKE_SYSTEM_NAME MATCHES "OS2")
if (CMAKE_SYSTEM_NAME MATCHES "Darwin")
set (OSX TRUE)
endif (CMAKE_SYSTEM_NAME MATCHES "Darwin")

7
libssh/config.h.cmake
View File

@ -20,6 +20,9 @@
/* Define to 1 if you have the <pty.h> header file. */
#cmakedefine HAVE_PTY_H 1
/* Define to 1 if you have the <util.h> header file. */
#cmakedefine HAVE_UTIL_H 1
/* Define to 1 if you have the <termios.h> header file. */
#cmakedefine HAVE_TERMIOS_H 1
@ -126,7 +129,6 @@
/* Define to 1 if you have the `pthread' library (-lpthread). */
#cmakedefine HAVE_PTHREAD 1
/**************************** OPTIONS ****************************/
#cmakedefine HAVE_GCC_THREAD_LOCAL_STORAGE 1
@ -158,6 +160,9 @@
/* Define to 1 if you want to enable calltrace debug output */
#cmakedefine DEBUG_CALLTRACE 1
/* Define to 1 if you want to enable NaCl support */
#cmakedefine WITH_NACL 1
/*************************** ENDIAN *****************************/
/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most

10
libssh/doc/mainpage.dox
View File

@ -19,7 +19,7 @@ the interesting functions as you go.
The libssh library provides:
- <strong>Key Exchange Methods</strong>: <i>ecdh-sha2-nistp256</i>, diffie-hellman-group1-sha1, diffie-hellman-group14-sha1
- <strong>Key Exchange Methods</strong>: <i>curve25519-sha256@libssh.org, ecdh-sha2-nistp256</i>, diffie-hellman-group1-sha1, diffie-hellman-group14-sha1
- <strong>Hostkey Types</strong>: <i>ecdsa-sha2-nistp256</i>, ssh-dss, ssh-rsa
- <strong>Ciphers</strong>: <i>aes256-ctr, aes192-ctr, aes128-ctr</i>, aes256-cbc (rijndael-cbc@lysator.liu.se), aes192-cbc, aes128-cbc, 3des-cbc, des-cbc-ssh1, blowfish-cbc, none
- <strong>Compression Schemes</strong>: zlib, <i>zlib@openssh.com</i>, none
@ -184,6 +184,8 @@ It was later modified and expanded by the following RFCs.
Authentication and Key Exchange for the Secure Shell (SSH) Protocol
- <a href="http://tools.ietf.org/html/rfc4716" target="_blank">RFC 4716</a>,
The Secure Shell (SSH) Public Key File Format
- <a href="http://tools.ietf.org/html/rfc5647" target="_blank">RFC 5647</a>,
AES Galois Counter Mode for the Secure Shell Transport Layer Protocol
- <a href="http://tools.ietf.org/html/rfc5656" target="_blank">RFC 5656</a>,
Elliptic Curve Algorithm Integration in the Secure Shell Transport Layer
@ -203,6 +205,12 @@ do the same in libssh.
@subsection main-rfc-extensions Secure Shell Extensions
The libssh project has an extension to support Curve25519 which is also supported by
the OpenSSH project.
- <a href="" target="_blank">curve25519-sha256@libssh.org</a>,
Curve25519-SHA256 for ECDH KEX
The OpenSSH project has defined some extensions to the protocol. We support some of
them like the statvfs calls in SFTP or the ssh-agent.

6
libssh/examples/CMakeLists.txt
View File

@ -11,9 +11,9 @@ include_directories(
${CMAKE_BINARY_DIR}
)
if (BSD OR SOLARIS)
if (BSD OR SOLARIS OR OSX)
find_package(Argp)
endif (BSD OR SOLARIS)
endif (BSD OR SOLARIS OR OSX)
if (UNIX AND NOT WIN32)
add_executable(libssh_scp libssh_scp.c ${examples_SRCS})
@ -28,7 +28,7 @@ if (UNIX AND NOT WIN32)
if (WITH_SERVER)
if (HAVE_LIBUTIL)
add_executable(samplesshd-tty samplesshd-tty.c)
target_link_libraries(samplesshd-tty ${LIBSSH_SHARED_LIBRARY} util)
target_link_libraries(samplesshd-tty ${LIBSSH_SHARED_LIBRARY} ${ARGP_LIBRARIES} util)
endif (HAVE_LIBUTIL)
endif (WITH_SERVER)

18
libssh/examples/knownhosts.c
View File

@ -34,14 +34,26 @@ int verify_knownhost(ssh_session session){
int state;
char buf[10];
unsigned char *hash = NULL;
int hlen;
size_t hlen;
ssh_key srv_pubkey;
int rc;
state=ssh_is_server_known(session);
hlen = ssh_get_pubkey_hash(session, &hash);
if (hlen < 0) {
rc = ssh_get_publickey(session, &srv_pubkey);
if (rc < 0) {
return -1;
}
rc = ssh_get_publickey_hash(srv_pubkey,
SSH_PUBLICKEY_HASH_SHA1,
&hash,
&hlen);
ssh_key_free(srv_pubkey);
if (rc < 0) {
return -1;
}
switch(state){
case SSH_SERVER_KNOWN_OK:
break; /* ok */

6
libssh/examples/samplesshd-tty.c
View File

@ -25,8 +25,12 @@ clients must be made or how a client should react.
#include <string.h>
#include <stdio.h>
#include <poll.h>
#ifdef HAVE_PTY_H
#include <pty.h>
#endif
#ifdef HAVE_UTIL_H
#include <util.h>
#endif
#define SSHD_USER "libssh"
#define SSHD_PASSWORD "libssh"

12
libssh/include/libssh/curve25519.h
View File

@ -26,15 +26,23 @@
#ifdef WITH_NACL
#define HAVE_CURVE25519
#include <nacl/crypto_scalarmult_curve25519.h>
#define CURVE25519_PUBKEY_SIZE crypto_scalarmult_curve25519_BYTES
#define CURVE25519_PRIVKEY_SIZE crypto_scalarmult_curve25519_SCALARBYTES
#define crypto_scalarmult_base crypto_scalarmult_curve25519_base
#define crypto_scalarmult crypto_scalarmult_curve25519
#else
#define CURVE25519_PUBKEY_SIZE 32
#define CURVE25519_PRIVKEY_SIZE 32
int crypto_scalarmult_base(unsigned char *q, const unsigned char *n);
int crypto_scalarmult(unsigned char *q, const unsigned char *n, const unsigned char *p);
#endif /* WITH_NACL */
#define HAVE_CURVE25519
typedef unsigned char ssh_curve25519_pubkey[CURVE25519_PUBKEY_SIZE];
typedef unsigned char ssh_curve25519_privkey[CURVE25519_PRIVKEY_SIZE];
#endif /* WITH_NACL */
int ssh_client_curve25519_init(ssh_session session);
int ssh_client_curve25519_reply(ssh_session session, ssh_buffer packet);

20
libssh/include/libssh/libssh.h
View File

@ -208,10 +208,14 @@ enum ssh_publickey_state_e {
SSH_PUBLICKEY_STATE_WRONG=2
};
/* status flags */
/* Status flags */
/** Socket is closed */
#define SSH_CLOSED 0x01
/** Reading to socket won't block */
#define SSH_READ_PENDING 0x02
/** Session was closed due to an error */
#define SSH_CLOSED_ERROR 0x04
/** Output buffer not empty */
#define SSH_WRITE_PENDING 0x08
enum ssh_server_known_e {
@ -408,8 +412,20 @@ LIBSSH_API socket_t ssh_get_fd(ssh_session session);
LIBSSH_API char *ssh_get_hexa(const unsigned char *what, size_t len);
LIBSSH_API char *ssh_get_issue_banner(ssh_session session);
LIBSSH_API int ssh_get_openssh_version(ssh_session session);
LIBSSH_API int ssh_get_publickey(ssh_session session, ssh_key *key);
LIBSSH_API int ssh_get_pubkey_hash(ssh_session session, unsigned char **hash);
enum ssh_publickey_hash_type {
SSH_PUBLICKEY_HASH_SHA1,
SSH_PUBLICKEY_HASH_MD5
};
LIBSSH_API int ssh_get_publickey_hash(const ssh_key key,
enum ssh_publickey_hash_type type,
unsigned char **hash,
size_t *hlen);
SSH_DEPRECATED LIBSSH_API int ssh_get_pubkey_hash(ssh_session session, unsigned char **hash);
LIBSSH_API int ssh_get_random(void *where,int len,int strong);
LIBSSH_API int ssh_get_version(ssh_session session);
LIBSSH_API int ssh_get_status(ssh_session session);

14
libssh/include/libssh/priv.h
View File

@ -155,6 +155,16 @@ int gettimeofday(struct timeval *__p, void *__t);
#include <sys/time.h>
#endif
/*
* get rid of deprecacy warnings on OSX when using OpenSSL
*/
#if defined(__APPLE__)
#ifdef MAC_OS_X_VERSION_MIN_REQUIRED
#undef MAC_OS_X_VERSION_MIN_REQUIRED
#endif
#define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
#endif
/* forward declarations */
struct ssh_common_struct;
struct ssh_kex_struct;
@ -254,7 +264,7 @@ int match_hostname(const char *host, const char *pattern, unsigned int len);
/** Overwrite the buffer with '\0' */
# define BURN_BUFFER(x, size) do { \
if ((x) != NULL) \
memset((x), '\0', (size))); __asm__ volatile("" : : "r"(&(x)) : "memory"); \
memset((x), '\0', (size)); __asm__ volatile("" : : "r"(&(x)) : "memory"); \
} while(0)
#else /* HAVE_GCC_VOLATILE_MEMORY_PROTECTION */
/** Overwrite a string with '\0' */
@ -265,7 +275,7 @@ int match_hostname(const char *host, const char *pattern, unsigned int len);
/** Overwrite the buffer with '\0' */
# define BURN_BUFFER(x, size) do { \
if ((x) != NULL) \
memset((x), '\0', (size))); __asm__ volatile("" : : "r"(&(x)) : "memory"); \
memset((x), '\0', (size)); __asm__ volatile("" : : "r"(&(x)) : "memory"); \
} while(0)
#endif /* HAVE_GCC_VOLATILE_MEMORY_PROTECTION */

7
libssh/src/CMakeLists.txt
View File

@ -115,6 +115,7 @@ set(libssh_SRCS
client.c
config.c
connect.c
curve25519.c
dh.c
ecdh.c
error.c
@ -204,12 +205,12 @@ if (WITH_GSSAPI AND GSSAPI_FOUND)
)
endif (WITH_GSSAPI AND GSSAPI_FOUND)
if (WITH_NACL)
if (NOT WITH_NACL)
set(libssh_SRCS
${libssh_SRCS}
curve25519.c
curve25519_ref.c
)
endif (WITH_NACL)
endif (NOT WITH_NACL)
include_directories(
${LIBSSH_PUBLIC_INCLUDE_DIRS}

9
libssh/src/channels.c
View File

@ -3348,16 +3348,17 @@ error:
}
/**
* @brief Send the exit status to the remote process (as described in RFC 4254, section 6.10).
* @brief Send the exit status to the remote process
*
* Sends the exit status to the remote process.
* Sends the exit status to the remote process (as described in RFC 4254,
* section 6.10).
* Only SSH-v2 is supported (I'm not sure about SSH-v1).
*
* @param[in] channel The channel to send exit status.
*
* @param[in] sig The exit status to send
* @param[in] exit_status The exit status to send
*
* @return SSH_OK on success, SSH_ERROR if an error occurred
* @return SSH_OK on success, SSH_ERROR if an error occurred.
* (including attempts to send exit status via SSH-v1 session).
*/
int ssh_channel_request_send_exit_status(ssh_channel channel, int exit_status) {

4
libssh/src/client.c
View File

@ -533,7 +533,7 @@ pending:
if (timeout == 0) {
timeout = 10 * 1000;
}
SSH_LOG(SSH_LOG_PACKET,"ssh_connect: Actual timeout : %d", timeout);
SSH_LOG(SSH_LOG_PACKET,"Actual timeout : %d", timeout);
ret = ssh_handle_packets_termination(session, timeout, ssh_connect_termination, session);
if (ret == SSH_ERROR || !ssh_connect_termination(session)) {
ssh_set_error(session, SSH_FATAL,
@ -550,7 +550,7 @@ pending:
session->session_state = SSH_SESSION_STATE_ERROR;
}
}
SSH_LOG(SSH_LOG_PACKET,"ssh_connect: Actual state : %d",session->session_state);
SSH_LOG(SSH_LOG_PACKET,"current state : %d",session->session_state);
if(!ssh_is_blocking(session) && !ssh_connect_termination(session)){
return SSH_AGAIN;
}

15
libssh/src/curve25519.c
View File

@ -26,7 +26,10 @@
#include "libssh/curve25519.h"
#ifdef HAVE_CURVE25519
#ifdef WITH_NACL
#include "nacl/crypto_scalarmult_curve25519.h"
#endif
#include "libssh/ssh2.h"
#include "libssh/buffer.h"
#include "libssh/priv.h"
@ -53,7 +56,7 @@ int ssh_client_curve25519_init(ssh_session session){
return SSH_ERROR;
}
crypto_scalarmult_curve25519_base(session->next_crypto->curve25519_client_pubkey,
crypto_scalarmult_base(session->next_crypto->curve25519_client_pubkey,
session->next_crypto->curve25519_privkey);
client_pubkey = ssh_string_new(CURVE25519_PUBKEY_SIZE);
if (client_pubkey == NULL) {
@ -81,10 +84,10 @@ static int ssh_curve25519_build_k(ssh_session session) {
}
if (session->server)
crypto_scalarmult_curve25519(k, session->next_crypto->curve25519_privkey,
crypto_scalarmult(k, session->next_crypto->curve25519_privkey,
session->next_crypto->curve25519_client_pubkey);
else
crypto_scalarmult_curve25519(k, session->next_crypto->curve25519_privkey,
crypto_scalarmult(k, session->next_crypto->curve25519_privkey,
session->next_crypto->curve25519_server_pubkey);
BN_bin2bn(k, CURVE25519_PUBKEY_SIZE, session->next_crypto->k);
@ -125,7 +128,7 @@ int ssh_client_curve25519_reply(ssh_session session, ssh_buffer packet){
}
if (ssh_string_len(q_s_string) != CURVE25519_PUBKEY_SIZE){
ssh_set_error(session, SSH_FATAL, "Incorrect size for server Curve25519 public key: %d",
ssh_string_len(q_s_string));
(int)ssh_string_len(q_s_string));
ssh_string_free(q_s_string);
goto error;
}
@ -179,7 +182,7 @@ int ssh_server_curve25519_init(ssh_session session, ssh_buffer packet){
}
if (ssh_string_len(q_c_string) != CURVE25519_PUBKEY_SIZE){
ssh_set_error(session, SSH_FATAL, "Incorrect size for server Curve25519 public key: %d",
ssh_string_len(q_c_string));
(int)ssh_string_len(q_c_string));
ssh_string_free(q_c_string);
return SSH_ERROR;
}
@ -195,7 +198,7 @@ int ssh_server_curve25519_init(ssh_session session, ssh_buffer packet){
return SSH_ERROR;
}
crypto_scalarmult_curve25519_base(session->next_crypto->curve25519_server_pubkey,
crypto_scalarmult_base(session->next_crypto->curve25519_server_pubkey,
session->next_crypto->curve25519_privkey);
q_s_string = ssh_string_new(CURVE25519_PUBKEY_SIZE);

235
libssh/src/dh.c
View File

@ -239,63 +239,6 @@ void ssh_print_bignum(const char *which, bignum num) {
SAFE_FREE(hex);
}
/**
* @brief Convert a buffer into a colon separated hex string.
* The caller has to free the memory.
*
* @param what What should be converted to a hex string.
*
* @param len Length of the buffer to convert.
*
* @return The hex string or NULL on error.
*
* @see ssh_string_free_char()
*/
char *ssh_get_hexa(const unsigned char *what, size_t len) {
const char h[] = "0123456789abcdef";
char *hexa;
size_t i;
size_t hlen = len * 3;
if (len > (UINT_MAX - 1) / 3) {
return NULL;
}
hexa = malloc(hlen + 1);
if (hexa == NULL) {
return NULL;
}
for (i = 0; i < len; i++) {
hexa[i * 3] = h[(what[i] >> 4) & 0xF];
hexa[i * 3 + 1] = h[what[i] & 0xF];
hexa[i * 3 + 2] = ':';
}
hexa[hlen - 1] = '\0';
return hexa;
}
/**
* @brief Print a buffer as colon separated hex string.
*
* @param descr Description printed in front of the hex string.
*
* @param what What should be converted to a hex string.
*
* @param len Length of the buffer to convert.
*/
void ssh_print_hexa(const char *descr, const unsigned char *what, size_t len) {
char *hexa = ssh_get_hexa(what, len);
if (hexa == NULL) {
return;
}
printf("%s: %s\n", descr, hexa);
free(hexa);
}
int dh_generate_x(ssh_session session) {
session->next_crypto->x = bignum_new();
if (session->next_crypto->x == NULL) {
@ -1047,25 +990,7 @@ error:
*/
/**
* @brief Allocates a buffer with the MD5 hash of the server public key.
*
* This function allows you to get a MD5 hash of the public key. You can then
* print this hash in a human-readable form to the user so that he is able to
* verify it. Use ssh_get_hexa() or ssh_print_hexa() to display it.
*
* @param[in] session The SSH session to use.
*
* @param[in] hash The buffer to allocate.
*
* @return The bytes allocated or < 0 on error.
*
* @warning It is very important that you verify at some moment that the hash
* matches a known server. If you don't do it, cryptography wont help
* you at making things secure
*
* @see ssh_is_server_known()
* @see ssh_get_hexa()
* @see ssh_print_hexa()
* @deprecated Use ssh_get_publickey_hash()
*/
int ssh_get_pubkey_hash(ssh_session session, unsigned char **hash) {
ssh_string pubkey;
@ -1142,6 +1067,164 @@ int ssh_get_publickey(ssh_session session, ssh_key *key)
key);
}
/**
* @brief Allocates a buffer with the hash of the public key.
*
* This function allows you to get a hash of the public key. You can then
* print this hash in a human-readable form to the user so that he is able to
* verify it. Use ssh_get_hexa() or ssh_print_hexa() to display it.
*
* @param[in] key The public key to create the hash for.
*
* @param[in] type The type of the hash you want.
*
* @param[in] hash A pointer to store the allocated buffer. It can be
* freed using ssh_clean_pubkey_hash().
*
* @param[in] hlen The length of the hash.
*
* @return 0 on success, -1 if an error occured.
*
* @warning It is very important that you verify at some moment that the hash
* matches a known server. If you don't do it, cryptography wont help
* you at making things secure.
* OpenSSH uses SHA1 to print public key digests.
*
* @see ssh_is_server_known()
* @see ssh_get_hexa()
* @see ssh_print_hexa()
* @see ssh_clean_pubkey_hash()
*/
int ssh_get_publickey_hash(const ssh_key key,
enum ssh_publickey_hash_type type,
unsigned char **hash,
size_t *hlen)
{
ssh_string blob;
unsigned char *h;
int rc;
rc = ssh_pki_export_pubkey_blob(key, &blob);
if (rc < 0) {
return rc;
}
switch (type) {
case SSH_PUBLICKEY_HASH_SHA1:
{
SHACTX ctx;
h = malloc(SHA_DIGEST_LEN);
if (h == NULL) {
rc = -1;
goto out;
}
ctx = sha1_init();
if (ctx == NULL) {
free(h);
rc = -1;
goto out;
}
sha1_update(ctx, ssh_string_data(blob), ssh_string_len(blob));
sha1_final(h, ctx);
*hlen = SHA_DIGEST_LEN;
}
break;
case SSH_PUBLICKEY_HASH_MD5:
{
MD5CTX ctx;
h = malloc(MD5_DIGEST_LEN);
if (h == NULL) {
rc = -1;
goto out;
}
ctx = md5_init();
if (ctx == NULL) {
free(h);
rc = -1;
goto out;
}
md5_update(ctx, ssh_string_data(blob), ssh_string_len(blob));
md5_final(h, ctx);
*hlen = MD5_DIGEST_LEN;
}
break;
default:
rc = -1;
goto out;
}
*hash = h;
rc = 0;
out:
ssh_string_free(blob);
return rc;
}
/**
* @brief Convert a buffer into a colon separated hex string.
* The caller has to free the memory.
*
* @param what What should be converted to a hex string.
*
* @param len Length of the buffer to convert.
*
* @return The hex string or NULL on error.
*
* @see ssh_string_free_char()
*/
char *ssh_get_hexa(const unsigned char *what, size_t len) {
const char h[] = "0123456789abcdef";
char *hexa;
size_t i;
size_t hlen = len * 3;
if (len > (UINT_MAX - 1) / 3) {
return NULL;
}
hexa = malloc(hlen + 1);
if (hexa == NULL) {
return NULL;
}
for (i = 0; i < len; i++) {
hexa[i * 3] = h[(what[i] >> 4) & 0xF];
hexa[i * 3 + 1] = h[what[i] & 0xF];
hexa[i * 3 + 2] = ':';
}
hexa[hlen - 1] = '\0';
return hexa;
}
/**
* @brief Print a buffer as colon separated hex string.
*
* @param descr Description printed in front of the hex string.
*
* @param what What should be converted to a hex string.
*
* @param len Length of the buffer to convert.
*/
void ssh_print_hexa(const char *descr, const unsigned char *what, size_t len) {
char *hexa = ssh_get_hexa(what, len);
if (hexa == NULL) {
return;
}
printf("%s: %s\n", descr, hexa);
free(hexa);
}
/** @} */
/* vim: set ts=4 sw=4 et cindent: */

2
libssh/src/log.c
View File

@ -65,7 +65,7 @@ static int current_timestring(int hires, char *buf, size_t len)
if (hires) {
strftime(tbuf, sizeof(tbuf) - 1, "%Y/%m/%d %H:%M:%S", tm);
snprintf(buf, len, "%s.%06ld", tbuf, tv.tv_usec);
snprintf(buf, len, "%s.%06ld", tbuf, (long)tv.tv_usec);
} else {
strftime(tbuf, sizeof(tbuf) - 1, "%Y/%m/%d %H:%M:%S", tm);
snprintf(buf, len, "%s", tbuf);

4
libssh/src/messages.c
View File

@ -309,10 +309,8 @@ static int ssh_execute_server_callbacks(ssh_session session, ssh_message msg){
if (session->server_callbacks != NULL){
rc = ssh_execute_server_request(session, msg);
}
} else if (session->common.callbacks != NULL) {
/* This one is in fact a client callback... */
else if (session->common.callbacks != NULL) {
rc = ssh_execute_client_request(session, msg);
}

2
libssh/src/options.c
View File

@ -1254,7 +1254,7 @@ static int ssh_bind_options_set_algo(ssh_bind sshbind, int algo,
/**
* @brief This function can set all possible ssh bind options.
*
* @param session An allocated ssh option structure.
* @param sshbind An allocated ssh bind structure.
*
* @param type The option type to set. This could be one of the
* following:

4
libssh/src/pki_crypto.c
View File

@ -25,6 +25,8 @@
#ifndef _PKI_CRYPTO_H
#define _PKI_CRYPTO_H
#include "libssh/priv.h"
#include <openssl/pem.h>
#include <openssl/dsa.h>
#include <openssl/err.h>
@ -37,8 +39,6 @@
#include <openssl/ecdsa.h>
#endif
#include "libssh/priv.h"
#include "libssh/libssh.h"
#include "libssh/buffer.h"
#include "libssh/session.h"

41
libssh/src/server.c
View File

@ -1221,38 +1221,45 @@ int ssh_execute_message_callbacks(ssh_session session){
return SSH_OK;
}
int ssh_send_keepalive(ssh_session session)
{
/* TODO check the reply and all that */
struct ssh_string_struct *req;
int reply = 1;
int rc = SSH_ERROR;
int rc;
rc = buffer_add_u8(session->out_buffer, SSH2_MSG_GLOBAL_REQUEST);
if (rc < 0) {
goto err;
}
req = ssh_string_from_char("keepalive@openssh.com");
if (req == NULL) {
ssh_set_error_oom(session);
goto out;
goto err;
}
if (buffer_add_u8(session->out_buffer, SSH2_MSG_GLOBAL_REQUEST) < 0 ||
buffer_add_ssh_string(session->out_buffer, req) < 0 ||
buffer_add_u8(session->out_buffer, reply == 0 ? 0 : 1) < 0) {
ssh_set_error_oom(session);
goto out;
rc = buffer_add_ssh_string(session->out_buffer, req);
ssh_string_free(req);
if (rc < 0) {
goto err;
}
if (packet_send(session) == SSH_ERROR)
goto out;
rc = buffer_add_u8(session->out_buffer, 1);
if (rc < 0) {
goto err;
}
if (packet_send(session) == SSH_ERROR) {
goto err;
}
ssh_handle_packets(session, 0);
SSH_LOG(SSH_LOG_PACKET, "Sent a keepalive");
rc = SSH_OK;
return SSH_OK;
out:
ssh_string_free(req);
return rc;
err:
ssh_set_error_oom(session);
buffer_reinit(session->out_buffer);
return SSH_ERROR;
}
/** @} */

2
libssh/src/session.c
View File

@ -273,7 +273,7 @@ void ssh_free(ssh_session session) {
}
/* burn connection, it could hang sensitive datas */
ZERO_STRUCTP(session);
BURN_BUFFER(session, sizeof(struct ssh_session_struct));
SAFE_FREE(session);
}

4
libssh/src/socket.c
View File

@ -695,11 +695,11 @@ int ssh_socket_buffered_write_bytes(ssh_socket s){
int ssh_socket_get_status(ssh_socket s) {
int r = 0;
if (s->read_wontblock) {
if (buffer_get_len(s->in_buffer) > 0) {
r |= SSH_READ_PENDING;
}
if (s->write_wontblock) {
if (buffer_get_len(s->out_buffer) > 0) {
r |= SSH_WRITE_PENDING;
}

12
libssh/src/wrapper.c
View File

@ -158,7 +158,7 @@ void crypto_free(struct ssh_crypto_struct *crypto){
SAFE_FREE(crypto->kex_methods[i]);
}
memset(crypto,0,sizeof(*crypto));
BURN_BUFFER(crypto, sizeof(struct ssh_crypto_struct));
SAFE_FREE(crypto);
}
@ -319,11 +319,12 @@ int crypt_set_algorithms_server(ssh_session session){
if(strcmp(method,"zlib@openssh.com") == 0){
SSH_LOG(SSH_LOG_PACKET,"enabling C->S delayed compression");
if (session->flags & SSH_SESSION_FLAG_AUTHENTICATED)
if (session->flags & SSH_SESSION_FLAG_AUTHENTICATED) {
session->next_crypto->do_compress_in = 1;
else
} else {
session->next_crypto->delayed_compress_in = 1;
}
}
method = session->next_crypto->kex_methods[SSH_COMP_S_C];
if(strcmp(method,"zlib") == 0){
@ -333,11 +334,12 @@ int crypt_set_algorithms_server(ssh_session session){
if(strcmp(method,"zlib@openssh.com") == 0){
SSH_LOG(SSH_LOG_PACKET,"enabling S->C delayed compression\n");
if (session->flags & SSH_SESSION_FLAG_AUTHENTICATED)
if (session->flags & SSH_SESSION_FLAG_AUTHENTICATED) {
session->next_crypto->do_compress_out = 1;
else
} else {
session->next_crypto->delayed_compress_out = 1;
}
}
method = session->next_crypto->kex_methods[SSH_HOSTKEYS];
session->srv.hostkey = ssh_key_type_from_name(method);