diff options
| author | djm@openbsd.org <djm@openbsd.org> | 2021-01-26 00:47:47 +0000 |
|---|---|---|
| committer | Damien Miller <djm@mindrot.org> | 2021-01-26 12:21:48 +1100 |
| commit | 1fe16fd61bb53944ec510882acc0491abd66ff76 (patch) | |
| tree | c3322df8f7841be186afd10e03506ecdeef32615 /ssh-agent.c | |
| parent | cb7b22ea20a01332c81c0ddcb3555ad50de9cce2 (diff) | |
| download | openssh-git-1fe16fd61bb53944ec510882acc0491abd66ff76.tar.gz | |
upstream: use recallocarray to allocate the agent sockets table;
also clear socket entries that are being marked as unused.
spinkle in some debug2() spam to make it easier to watch an agent
do its thing.
ok markus
OpenBSD-Commit-ID: 74582c8e82e96afea46f6c7b6813a429cbc75922
Diffstat (limited to 'ssh-agent.c')
| -rw-r--r-- | ssh-agent.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/ssh-agent.c b/ssh-agent.c index d231182d..1df0236f 100644 --- a/ssh-agent.c +++ b/ssh-agent.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-agent.c,v 1.268 2021/01/11 02:12:58 dtucker Exp $ */ +/* $OpenBSD: ssh-agent.c,v 1.269 2021/01/26 00:47:47 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -175,11 +175,12 @@ static void close_socket(SocketEntry *e) { close(e->fd); - e->fd = -1; - e->type = AUTH_UNUSED; sshbuf_free(e->input); sshbuf_free(e->output); sshbuf_free(e->request); + memset(e, '\0', sizeof(*e)); + e->fd = -1; + e->type = AUTH_UNUSED; } static void @@ -249,6 +250,8 @@ process_request_identities(SocketEntry *e) struct sshbuf *msg; int r; + debug2_f("entering"); + if ((msg = sshbuf_new()) == NULL) fatal_f("sshbuf_new failed"); if ((r = sshbuf_put_u8(msg, SSH2_AGENT_IDENTITIES_ANSWER)) != 0 || @@ -441,6 +444,7 @@ process_remove_identity(SocketEntry *e) struct sshkey *key = NULL; Identity *id; + debug2_f("entering"); if ((r = sshkey_froms(e->request, &key)) != 0) { error_fr(r, "parse key"); goto done; @@ -466,6 +470,7 @@ process_remove_all_identities(SocketEntry *e) { Identity *id; + debug2_f("entering"); /* Loop over all identities and clear the keys. */ for (id = TAILQ_FIRST(&idtab->idlist); id; id = TAILQ_FIRST(&idtab->idlist)) { @@ -519,6 +524,7 @@ process_add_identity(SocketEntry *e) u_char ctype; int r = SSH_ERR_INTERNAL_ERROR; + debug2_f("entering"); if ((r = sshkey_private_deserialize(e->request, &k)) != 0 || k == NULL || (r = sshbuf_get_cstring(e->request, &comment, NULL)) != 0) { @@ -660,6 +666,7 @@ process_lock_agent(SocketEntry *e, int lock) static u_int fail_count = 0; size_t pwlen; + debug2_f("entering"); /* * This is deliberately fatal: the user has requested that we lock, * but we can't parse their request properly. The only safe thing to @@ -730,6 +737,7 @@ process_add_smartcard_key(SocketEntry *e) struct sshkey **keys = NULL, *k; Identity *id; + debug2_f("entering"); if ((r = sshbuf_get_cstring(e->request, &provider, NULL)) != 0 || (r = sshbuf_get_cstring(e->request, &pin, NULL)) != 0) { error_fr(r, "parse"); @@ -809,6 +817,7 @@ process_remove_smartcard_key(SocketEntry *e) int r, success = 0; Identity *id, *nxt; + debug2_f("entering"); if ((r = sshbuf_get_cstring(e->request, &provider, NULL)) != 0 || (r = sshbuf_get_cstring(e->request, &pin, NULL)) != 0) { error_fr(r, "parse"); @@ -951,6 +960,8 @@ new_socket(sock_type type, int fd) { u_int i, old_alloc, new_alloc; + debug_f("type = %s", type == AUTH_CONNECTION ? "CONNECTION" : + (type == AUTH_SOCKET ? "SOCKET" : "UNKNOWN")); set_nonblock(fd); if (fd > max_fd) @@ -968,7 +979,8 @@ new_socket(sock_type type, int fd) } old_alloc = sockets_alloc; new_alloc = sockets_alloc + 10; - sockets = xreallocarray(sockets, new_alloc, sizeof(sockets[0])); + sockets = xrecallocarray(sockets, old_alloc, new_alloc, + sizeof(sockets[0])); for (i = old_alloc; i < new_alloc; i++) sockets[i].type = AUTH_UNUSED; sockets_alloc = new_alloc; |