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| author |   Frank Sorenson <sorenson@redhat.com> | 2016-07-08 16:35:25 -0500 |
|---|---|---|
| committer |   Trond Myklebust <trond.myklebust@primarydata.com> | 2016-07-19 16:23:27 -0400 |
| commit | ffb6ca33b04b965ac7dd10676537b93e2476dcec (patch) | |
| tree | 7ce4abe91fb16fe66eff213b984546f57c0f6380 /net/sunrpc/xprtsock.c | |
| parent | sunrpc: Prevent resvport min/max inversion via sysctl (diff) | |
| download | linux-dev-ffb6ca33b04b965ac7dd10676537b93e2476dcec.tar.xz linux-dev-ffb6ca33b04b965ac7dd10676537b93e2476dcec.zip | |
sunrpc: Prevent resvport min/max inversion via sysfs and module parameter
The current min/max resvport settings are independently limited
by the entire range of allowed ports, so max_resvport can be
set to a port lower than min_resvport.
Prevent inversion of min/max values when set through sysfs and
module parameter by setting the limits dependent on each other.
Signed-off-by: Frank Sorenson <sorenson@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'net/sunrpc/xprtsock.c')
| -rw-r--r-- | net/sunrpc/xprtsock.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 2674309770f4..83e6f3316149 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -3153,8 +3153,12 @@ static int param_set_uint_minmax(const char *val, static int param_set_portnr(const char *val, const struct kernel_param *kp) { - return param_set_uint_minmax(val, kp, + if (kp->arg == &xprt_min_resvport) + return param_set_uint_minmax(val, kp, RPC_MIN_RESVPORT, + xprt_max_resvport); + return param_set_uint_minmax(val, kp, + xprt_min_resvport, RPC_MAX_RESVPORT); } |