From: Ole Troan <ot@cisco.com>
Date: Wed, 30 May 2018 20:43:25 +0000 (+0200)
Subject: VPP-1299: Reset uid/gid on shared memory segment if client starts first.
X-Git-Tag: v18.07-rc1~246
X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=commitdiff_plain;h=c4f2ef7d7e315e183e3994630209471c5362163a

VPP-1299: Reset uid/gid on shared memory segment if client starts first.

Change-Id: I2b5bc7d864f8829e1dff63fec3c9484078601309
Signed-off-by: Ole Troan <ot@cisco.com>
---

diff --git a/src/svm/svm.c b/src/svm/svm.c
index afba54e74fc..7d98fbe936d 100644
--- a/src/svm/svm.c
+++ b/src/svm/svm.c
@@ -652,6 +652,10 @@ svm_map_region (svm_map_region_args_t * a)
 	  return (0);
 	}
 
+      /* Reset ownership in case the client started first */
+      if (fchown (svm_fd, a->uid, a->gid) < 0)
+	clib_unix_warning ("segment chown [ok if client starts first]");
+
       time_left = 20;
       while (1)
 	{