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| author | rees <rees@FreeBSD.org> | 2006-01-20 15:17:46 +0000 |
|---|---|---|
| committer | rees <rees@FreeBSD.org> | 2006-01-20 15:17:46 +0000 |
| commit | f4bb03bde03a250ed963417ac7fe3fbf293f2ebf (patch) | |
| tree | 85da085470ef67567630deb1635d20456538233f /sys/rpc/rpcclnt.c | |
| parent | fc1f7144ffe98177ac28645dfa164f4a3532784f (diff) | |
| download | FreeBSD-src-f4bb03bde03a250ed963417ac7fe3fbf293f2ebf.zip FreeBSD-src-f4bb03bde03a250ed963417ac7fe3fbf293f2ebf.tar.gz | |
Use thread0 instead of user's thread for sobind.
This fixes reconnect after, for example, tcp idle disconnection.
Previously this would fail if a normal user tried to bind to a privileged
port.
Submitted by: cel@citi.umich.edu
MFC after: 1 week
Diffstat (limited to 'sys/rpc/rpcclnt.c')
| -rw-r--r-- | sys/rpc/rpcclnt.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/rpc/rpcclnt.c b/sys/rpc/rpcclnt.c index a70a287..0619cb6 100644 --- a/sys/rpc/rpcclnt.c +++ b/sys/rpc/rpcclnt.c @@ -423,7 +423,11 @@ rpcclnt_connect(rpc, td) sin.sin_family = AF_INET; sin.sin_addr.s_addr = INADDR_ANY; sin.sin_port = htons(0); - error = sobind(so, (struct sockaddr *) & sin, td); + /* + * &thread0 gives us root credentials to ensure sobind + * will give us a reserved ephemeral port. + */ + error = sobind(so, (struct sockaddr *) & sin, &thread0); #endif if (error) goto bad; |
