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Run the cleanup handler also when we close due to TCP connection being closed

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This commit is contained in:
Matt Johnston 2013-04-01 22:26:55 +08:00
parent 5af0d33164
commit 90b5691183
5 changed files with 21 additions and 12 deletions
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3
cli-main.c
View File

@ -98,8 +98,7 @@ static void cli_dropbear_exit(int exitcode, const char* format, va_list param) {
}
/* Do the cleanup first, since then the terminal will be reset */
cli_session_cleanup();
common_session_cleanup();
session_cleanup();
_dropbear_log(LOG_INFO, fmtbuf, param);

7
cli-session.c
View File

@ -42,6 +42,7 @@ static void cli_sessionloop();
static void cli_session_init();
static void cli_finished();
static void recv_msg_service_accept(void);
static void cli_session_cleanup(void);
struct clientsession cli_ses; /* GLOBAL */
@ -143,6 +144,7 @@ static void cli_session_init() {
/* For printing "remote host closed" for the user */
ses.remoteclosed = cli_remoteclosed;
ses.extra_session_cleanup = cli_session_cleanup;
ses.buf_match_algo = cli_buf_match_algo;
/* packet handlers */
@ -290,7 +292,7 @@ static void cli_sessionloop() {
}
void cli_session_cleanup() {
static void cli_session_cleanup(void) {
if (!sessinitdone) {
return;
@ -308,8 +310,7 @@ void cli_session_cleanup() {
static void cli_finished() {
cli_session_cleanup();
common_session_cleanup();
session_cleanup();
fprintf(stderr, "Connection to %s@%s:%s closed.\n", cli_opts.username,
cli_opts.remotehost, cli_opts.remoteport);
exit(cli_ses.retval);

6
common-session.c
View File

@ -234,7 +234,7 @@ void session_loop(void(*loophandler)()) {
}
/* clean up a session on exit */
void common_session_cleanup() {
void session_cleanup() {
TRACE(("enter session_cleanup"))
@ -244,6 +244,10 @@ void common_session_cleanup() {
return;
}
if (ses.extra_session_cleanup) {
ses.extra_session_cleanup();
}
m_free(ses.session_id);
m_burn(ses.keys, sizeof(struct key_context));
m_free(ses.keys);

4
session.h
View File

@ -44,7 +44,7 @@ extern int exitflag;
void common_session_init(int sock_in, int sock_out);
void session_loop(void(*loophandler)());
void common_session_cleanup();
void session_cleanup();
void send_session_identification();
void send_msg_ignore();
@ -58,7 +58,6 @@ void svr_dropbear_log(int priority, const char* format, va_list param);
/* Client */
void cli_session(int sock_in, int sock_out);
void cli_session_cleanup();
void cleantext(unsigned char* dirtytext);
/* crypto parameters that are stored individually for transmit and receive */
@ -181,6 +180,7 @@ struct sshsession {
void(*remoteclosed)(); /* A callback to handle closure of the
remote connection */
void(*extra_session_cleanup)(); /* client or server specific cleanup */
struct AuthState authstate; /* Common amongst client and server, since most
struct elements are common */

13
svr-session.c
View File

@ -72,6 +72,13 @@ static const struct ChanType *svr_chantypes[] = {
NULL /* Null termination is mandatory. */
};
static void
svr_session_cleanup(void)
{
/* free potential public key options */
svr_pubkey_options_cleanup();
}
void svr_session(int sock, int childpipe) {
char *host, *port;
size_t len;
@ -103,6 +110,7 @@ void svr_session(int sock, int childpipe) {
/* set up messages etc */
ses.remoteclosed = svr_remoteclosed;
ses.extra_session_cleanup = svr_session_cleanup;
/* packet handlers */
ses.packettypes = svr_packettypes;
@ -160,11 +168,8 @@ void svr_dropbear_exit(int exitcode, const char* format, va_list param) {
if (svr_ses.server_pid == getpid())
#endif
{
/* free potential public key options */
svr_pubkey_options_cleanup();
/* must be after we've done with username etc */
common_session_cleanup();
session_cleanup();
}
exit(exitcode);