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96 lines
2.9 KiB
Diff
96 lines
2.9 KiB
Diff
From 7c7590ad536c0e24bef790cb1e65702fc54db566 Mon Sep 17 00:00:00 2001
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From: Steve Dickson <steved@redhat.com>
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Date: Tue, 30 May 2017 11:27:22 -0400
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Subject: [PATCH 5/6] rpcbproc_callit_com: Stop freeing a static pointer
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commit 7ea36ee introduced a svc_freeargs() call
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that ended up freeing static pointer.
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It turns out the allocations for the rmt_args
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is not necessary . The xdr routines (xdr_bytes) will
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handle the memory management and the largest
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possible message size is UDPMSGSIZE (due to UDP only)
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which is smaller than RPC_BUF_MAX
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Signed-off-by: Steve Dickson <steved@redhat.com>
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---
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src/rpcb_svc_com.c | 39 ++++++---------------------------------
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1 file changed, 6 insertions(+), 33 deletions(-)
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diff --git a/src/rpcb_svc_com.c b/src/rpcb_svc_com.c
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index cb63afd..1fc2229 100644
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--- a/src/rpcb_svc_com.c
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+++ b/src/rpcb_svc_com.c
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@@ -612,9 +612,9 @@ rpcbproc_callit_com(struct svc_req *rqstp, SVCXPRT *transp,
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struct netconfig *nconf;
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struct netbuf *caller;
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struct r_rmtcall_args a;
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- char *buf_alloc = NULL, *outbufp;
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+ char *outbufp;
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char *outbuf_alloc = NULL;
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- char buf[RPC_BUF_MAX], outbuf[RPC_BUF_MAX];
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+ char outbuf[RPC_BUF_MAX];
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struct netbuf *na = (struct netbuf *) NULL;
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struct rpc_msg call_msg;
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int outlen;
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@@ -635,36 +635,10 @@ rpcbproc_callit_com(struct svc_req *rqstp, SVCXPRT *transp,
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}
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if (si.si_socktype != SOCK_DGRAM)
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return; /* Only datagram type accepted */
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- sendsz = __rpc_get_t_size(si.si_af, si.si_proto, UDPMSGSIZE);
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- if (sendsz == 0) { /* data transfer not supported */
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- if (reply_type == RPCBPROC_INDIRECT)
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- svcerr_systemerr(transp);
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- return;
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- }
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- /*
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- * Should be multiple of 4 for XDR.
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- */
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- sendsz = ((sendsz + 3) / 4) * 4;
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- if (sendsz > RPC_BUF_MAX) {
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-#ifdef notyet
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- buf_alloc = alloca(sendsz); /* not in IDR2? */
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-#else
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- buf_alloc = malloc(sendsz);
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-#endif /* notyet */
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- if (buf_alloc == NULL) {
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- if (debugging)
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- xlog(LOG_DEBUG,
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- "rpcbproc_callit_com: No Memory!\n");
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- if (reply_type == RPCBPROC_INDIRECT)
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- svcerr_systemerr(transp);
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- return;
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- }
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- a.rmt_args.args = buf_alloc;
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- } else {
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- a.rmt_args.args = buf;
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- }
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+ sendsz = UDPMSGSIZE;
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call_msg.rm_xid = 0; /* For error checking purposes */
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+ memset(&a, 0, sizeof(a)); /* Zero out the input buffer */
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if (!svc_getargs(transp, (xdrproc_t) xdr_rmtcall_args, (char *) &a)) {
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if (reply_type == RPCBPROC_INDIRECT)
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svcerr_decode(transp);
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@@ -704,7 +678,8 @@ rpcbproc_callit_com(struct svc_req *rqstp, SVCXPRT *transp,
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if (rbl == (rpcblist_ptr)NULL) {
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#ifdef RPCBIND_DEBUG
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if (debugging)
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- xlog(LOG_DEBUG, "not found\n");
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+ xlog(LOG_DEBUG, "prog %lu vers %lu: not found\n",
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+ a.rmt_prog, a.rmt_vers);
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#endif
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if (reply_type == RPCBPROC_INDIRECT)
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svcerr_noprog(transp);
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@@ -937,8 +912,6 @@ out:
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}
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if (local_uaddr)
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free(local_uaddr);
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- if (buf_alloc)
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- free(buf_alloc);
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if (outbuf_alloc)
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free(outbuf_alloc);
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if (na) {
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--
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2.13.2
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