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| author | Guillaume Nault <g.nault@alphalink.fr> | 2016-05-11 13:13:07 +0200 |
|---|---|---|
| committer | Dmitry Kozlov <xeb@mail.ru> | 2016-05-11 14:45:56 +0300 |
| commit | d682a0aa8a142b0213a352b0057572fd1a3b76a4 (patch) | |
| tree | fc972a3cb8274e6918a22ae115bc07ee9eda2724 | |
| parent | ff2000c206059d029f0a0542863565dfcef7d077 (diff) | |
| download | accel-ppp-d682a0aa8a142b0213a352b0057572fd1a3b76a4.tar.gz accel-ppp-d682a0aa8a142b0213a352b0057572fd1a3b76a4.zip | |
iprange: warn before disabling module due to /0 network with non-null IP
Using a /0 prefix on an IP different from 0.0.0.0 is valid, but might
be a configuration mistake. Log warning message in this case so that
user can easily troubleshoot it.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
| -rw-r--r-- | accel-pppd/iprange.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/accel-pppd/iprange.c b/accel-pppd/iprange.c index 593f493a..f7b77a27 100644 --- a/accel-pppd/iprange.c +++ b/accel-pppd/iprange.c @@ -114,8 +114,12 @@ static int parse_iprange(const char *str, struct iprange_t **range) } /* Interpret /0 as disable request */ - if (prefix_len == 0) + if (prefix_len == 0) { + if (ipmin != INADDR_ANY) + log_warn("iprange: %s is equivalent to 0.0.0.0/0 and disables the iprange module\n", + str); goto disable; + } mask = INADDR_BROADCAST << (32 - prefix_len); if (ipmin != (ipmin & mask)) { |