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feat: implement proxy jump using libssh

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tests: modify proxyjump tests to check for ssh_jump_info_struct

tests: add proxyjump functionality test

feat: add SSH_OPTIONS_PROXYJUMP

tests: proxyjump, check authentication

fix: ssh_socket_connect_proxyjump add exit label to exit on error

feat: implement io forwarding using pthread

feat: proxyjump: use threading instead of forking

feat: proxyjump: cancel forwarding threads on ssh_disconnect

fix: proxyjump remove ProxyJump bool and put pthread ifdefs

feat: use ssh_event for io forwarding instead of threads

reformat: tests to use assert_int_not_equal

fix: link to pthread

refactor: make function to free proxy jump list

docs: add comment for proxy jump channel

feat: add env variable to enable libssh proxy jump

feat: open channel for proxyjump like OpenSSH

feat: add more tests for proxy jump

fix: use a global variable to close io forwarding, this prevents segfaults

fix: handle proxy list in thread without creating copy
Signed-off-by: Gauravsingh Sisodia <xaerru@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Eshan Kelkar <eshankelkar@galorithm.com>
This commit is contained in:
Gauravsingh Sisodia
2024-02-28 17:20:52 +00:00
committed by Sahana Prasad
parent fe53cdfabd
commit 6d1ed76c7a
20 changed files with 1006 additions and 65 deletions
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13
include/libssh/misc.h
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@@ -34,6 +34,7 @@
#else
#include <sys/types.h>
#include <stdbool.h>
#endif /* _WIN32 */
#ifdef __cplusplus
@@ -65,6 +66,12 @@ struct ssh_iterator {
const void *data;
};
struct ssh_jump_info_struct {
char *hostname;
char *username;
int port;
};
struct ssh_timestamp {
long seconds;
long useconds;
@@ -100,6 +107,9 @@ const void *_ssh_list_pop_head(struct ssh_list *list);
#define ssh_list_pop_head(type, ssh_list)\
((type)_ssh_list_pop_head(ssh_list))
#define SSH_LIST_FREE(x) \
do { if ((x) != NULL) { ssh_list_free(x); (x) = NULL; } } while(0)
int ssh_make_milliseconds(unsigned long sec, unsigned long usec);
void ssh_timestamp_init(struct ssh_timestamp *ts);
int ssh_timeout_elapsed(struct ssh_timestamp *ts, int timeout);
@@ -123,6 +133,9 @@ ssize_t ssh_writen(int fd, const void *buf, size_t nbytes);
int ssh_check_hostname_syntax(const char *hostname);
int ssh_check_username_syntax(const char *username);
void ssh_proxyjumps_free(struct ssh_list *proxy_jump_list);
bool ssh_libssh_proxy_jumps(void);
#ifdef __cplusplus
}
#endif