diff options
| author | Amar Tumballi <amar@gluster.com> | 2010-10-21 02:25:49 +0000 |
|---|---|---|
| committer | Anand V. Avati <avati@dev.gluster.com> | 2010-10-26 03:02:07 -0700 |
| commit | 7c479d61681d3ddb7fcc325752384eac89ae809d (patch) | |
| tree | bd233bc1b1438fb3307255526d5b932df9e8d26a /rpc | |
| parent | 93de6e1f8106220d1c41f2ca9fdc207c76dd0560 (diff) | |
rpcsvc: handle NULL deref in case of program mismatch
Signed-off-by: Amar Tumballi <amar@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 1982 (rpc: crash on progver mismatch)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1982
Diffstat (limited to 'rpc')
| -rw-r--r-- | rpc/rpc-lib/src/rpcsvc.c | 39 |
1 files changed, 23 insertions, 16 deletions
diff --git a/rpc/rpc-lib/src/rpcsvc.c b/rpc/rpc-lib/src/rpcsvc.c index daf1298bb53..7db9ff48f8c 100644 --- a/rpc/rpc-lib/src/rpcsvc.c +++ b/rpc/rpc-lib/src/rpcsvc.c @@ -1378,27 +1378,31 @@ out: int rpcsvc_fill_reply (rpcsvc_request_t *req, struct rpc_msg *reply) { + int ret = -1; rpcsvc_program_t *prog = NULL; if ((!req) || (!reply)) - return -1; - - prog = rpcsvc_request_program (req); - if (!prog) - return -1; + goto out; + ret = 0; rpc_fill_empty_reply (reply, req->xid); - - if (req->rpc_status == MSG_DENIED) + if (req->rpc_status == MSG_DENIED) { rpc_fill_denied_reply (reply, req->rpc_err, req->auth_err); - else if (req->rpc_status == MSG_ACCEPTED) - rpc_fill_accepted_reply (reply, req->rpc_err, prog->proglowvers, - prog->proghighvers, req->verf.flavour, - req->verf.datalen, + goto out; + } + + prog = rpcsvc_request_program (req); + + if (req->rpc_status == MSG_ACCEPTED) + rpc_fill_accepted_reply (reply, req->rpc_err, + (prog) ? prog->proglowvers : 0, + (prog) ? prog->proghighvers: 0, + req->verf.flavour, req->verf.datalen, req->verf.authdata); else gf_log (GF_RPCSVC, GF_LOG_ERROR, "Invalid rpc_status value"); - return 0; +out: + return ret; } @@ -1538,14 +1542,17 @@ rpcsvc_submit_generic (rpcsvc_request_t *req, struct iovec *proghdr, if (ret == -1) { gf_log (GF_RPCSVC, GF_LOG_ERROR, "failed to submit message " "(XID: 0x%lx, Program: %s, ProgVers: %d, Proc: %d) to " - "rpc-transport (%s)", req->xid, req->prog->progname, - req->prog->progver, req->procnum, trans->name); + "rpc-transport (%s)", req->xid, + req->prog ? req->prog->progname : "(not matched)", + req->prog ? req->prog->progver : 0, + req->procnum, trans->name); } else { gf_log (GF_RPCSVC, GF_LOG_TRACE, "submitted reply for rpc-message (XID: 0x%lx, " "Program: %s, ProgVers: %d, Proc: %d) to rpc-transport " - "(%s)", req->xid, req->prog->progname, - req->prog->progver, req->procnum, trans->name); + "(%s)", req->xid, req->prog ? req->prog->progname: "-", + req->prog ? req->prog->progver : 0, + req->procnum, trans->name); } disconnect_exit: |