Date: Fri, 24 Oct 2014 20:18:10 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 194453] [dummynet] pipe config bw parameter is limited to 2Gbits per second Message-ID: <bug-194453-2472-onnHqPA3N8@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-194453-2472@https.bugs.freebsd.org/bugzilla/> References: <bug-194453-2472@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194453 --- Comment #4 from boba@boba.name --- (In reply to Hiren Panchasara from comment #2) > (In reply to boba from comment #0) > > It's impossible to create "pipe" with bandwidth higher than 2Gbits per > > second. Possible due to "signed" type of variable. > > > > # ipfw pipe 1 config bw 2700mbit/s > > ipfw: bandwidth too large > > I think you are right that its overflowing because of "signed" type. > > A simple change like this may fix the problem: > > Index: dummynet.c > =================================================================== > --- dummynet.c (revision 270969) > +++ dummynet.c (working copy) > @@ -546,7 +546,7 @@ > if_name[namelen] = '\0'; > *bandwidth = 0; > } else { /* read bandwidth value */ > - int bw; > + uint32_t bw; > char *end = NULL; > > bw = strtoul(arg, &end, 0); This patch will not work at all because of following check few lines after it: if (bw < 0) errx(EX_DATAERR, "bandwidth too large"); -- You are receiving this mail because: You are the assignee for the bug.
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