# NetBSD + nginx-0.8.53 + accept filters - not working **URL:** \ **Category:** NGINX\ **Created:** [August 9, 2011, 11:48am UTC](https://www.ruby-forum.com/t/netbsd-nginx-0-8-53-accept-filters-not-working/210475 "2011-08-09T11:48:47Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\ **Post date:** [August 9, 2011, 11:48am UTC](https://www.ruby-forum.com/t/netbsd-nginx-0-8-53-accept-filters-not-working/210475/1 "2011-08-09T11:48:47Z")
Hello, Giving nginx a spin on NetBSD, I noticed: accept filters “accept\_filter=httpready” are not supported on this platform, ignored in /usr/pkg/etc/nginx/nginx.conf:40 But NetBSD does support them: accf\_http (9) - buffer incoming connections until a certain complete HTTP requests arrive # grep -i accf /usr/src/sys/arch/amd64/conf/NETBSD\_WEBSERVER pseudo-device accf\_data # “dataready” accept filter pseudo-device accf\_http # “httpready” accept filter Since I’m using packages (pkgin), I could not test nginx 1.x (which is in pkgsrc); Maybe this has been fixed in the mean time ? Regards, Hugo Posted at Nginx Forum: > **[NetBSD + nginx-0.8.53 + accept filters - not working](https://forum.nginx.org/read.php?2,213567,213567#msg-213567)** > > Hello, Giving nginx a spin on NetBSD, I noticed: accept filters "accept\_filter=httpready" are not supported on this platform, ignored in /usr/pkg/etc/nginx/nginx.conf:40 But NetBSD does support them: accf\_http (9) - buffer incoming... ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [August 9, 2011, 1:07pm UTC](https://www.ruby-forum.com/t/netbsd-nginx-0-8-53-accept-filters-not-working/210475/2 "2011-08-09T13:07:57Z")
Hello! On Tue, Aug 09, 2011 at 05:48:06AM -0400, hugo wrote: > Giving nginx a spin on NetBSD, I noticed: > accept filters “accept\_filter=httpready” are not supported on this > platform, ignored in /usr/pkg/etc/nginx/nginx.conf:40 > > But NetBSD does support them: > accf\_http (9) - buffer incoming connections until a certain complete > HTTP requests arrive Ah, ok, it looks like accept filters are available in NetBSD 5.0+. […] > Since I’m using packages (pkgin), I could not test nginx 1.x (which is > in pkgsrc); Maybe this has been fixed in the mean time ? You may try ``` ./configure --with-cc-opt="-D NGX_HAVE_DEFERRED_ACCEPT" ``` to see if it works. If it is, we probably want to fix configure to detect it automatically. Maxim D. ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [August 9, 2011, 1:12pm UTC](https://www.ruby-forum.com/t/netbsd-nginx-0-8-53-accept-filters-not-working/210475/3 "2011-08-09T13:12:17Z")
Hello! On Tue, Aug 09, 2011 at 03:07:14PM +0400, Maxim D. wrote: […] > > Since I’m using packages (pkgin), I could not test nginx 1.x (which is > > in pkgsrc); Maybe this has been fixed in the mean time ? > > You may try > > ``` > ./configure --with-cc-opt="-D NGX_HAVE_DEFERRED_ACCEPT" > > ``` Oops, should be ``` ./configure --with-cc-opt="-D NGX_HAVE_DEFERRED_ACCEPT=1" ``` (note “=1”) > to see if it works. > > If it is, we probably want to fix configure to detect it > automatically. Maxim D. ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [August 9, 2011, 3:45pm UTC](https://www.ruby-forum.com/t/netbsd-nginx-0-8-53-accept-filters-not-working/210475/4 "2011-08-09T15:45:37Z")
Had a brief chat with the maintainer; He’s of the opinion that this should be dealt with upstream, using the same logic in use for FreeBSD: “if SO\_ACCEPTFILTER exists, use it by default.” Regards, Hugo Posted at Nginx Forum: > **[Re: NetBSD + nginx-0.8.53 + accept filters - not working](https://forum.nginx.org/read.php?2,213567,213578#msg-213578)** > > Hello, Giving nginx a spin on NetBSD, I noticed: accept filters "accept\_filter=httpready" are not supported on this platform, ignored in /usr/pkg/etc/nginx/nginx.conf:40 But NetBSD does support them: accf\_http (9) - buffer incoming... ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [August 9, 2011, 4:06pm UTC](https://www.ruby-forum.com/t/netbsd-nginx-0-8-53-accept-filters-not-working/210475/5 "2011-08-09T16:06:38Z")
Hello! On Tue, Aug 09, 2011 at 09:44:53AM -0400, hugo wrote: > Had a brief chat with the maintainer; He’s of the opinion that this > should be dealt with upstream, using the same logic in use for FreeBSD: > “if SO\_ACCEPTFILTER exists, use it by default.” As I already stated earlier: … > > > to see if it works. > > > > > > If it is, we probably want to fix configure to detect it > > > automatically. Do you see it works? I.e. not only doesn’t produce errors while parsing configuration, but actually works ok and uses accept filters? Maxim D. ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [August 9, 2011, 3:04pm UTC](https://www.ruby-forum.com/t/netbsd-nginx-0-8-53-accept-filters-not-working/210475/6 "2011-08-09T15:04:16Z")
nginx-1.0.4 Lightweight HTTP server and mail proxy server I fixed the Makefile in /usr/pkgsrc/www/nginx and added CONFIGURE\_ARGS+= –with-cc-opt=“-D NGX\_HAVE\_DEFERRED\_ACCEPT=1” Restarting nginx produced no errors with the accept\_filter=httpready line after recompilation. I’ve notified the nginx pkgsrc maintainer too. Thanks for the line! Hugo Posted at Nginx Forum: > **[Re: NetBSD + nginx-0.8.53 + accept filters - not working](https://forum.nginx.org/read.php?2,213567,213574#msg-213574)** > > Hello, Giving nginx a spin on NetBSD, I noticed: accept filters "accept\_filter=httpready" are not supported on this platform, ignored in /usr/pkg/etc/nginx/nginx.conf:40 But NetBSD does support them: accf\_http (9) - buffer incoming... ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [August 9, 2011, 5:04pm UTC](https://www.ruby-forum.com/t/netbsd-nginx-0-8-53-accept-filters-not-working/210475/7 "2011-08-09T17:04:09Z")
Hello! On Tue, Aug 09, 2011 at 10:22:34AM -0400, hugo wrote: > From the manpage: > > RETURN VALUES > A 0 is returned if the call succeeds, -1 if it fails. Do you actually see accept filter works, i.e. holding connection in incomplete queue till http request comes? Not sure, but likely NetBSD’s netstat should show this as well as FreeBSD’s one with “netstat -Lan”: $ netstat -Lan Current listen queue sizes (qlen/incqlen/maxqlen) Proto Listen Local Address … tcp4 0/1/128 \*.8080 … Note “1” in incqlen: this is telnet connection opened without http request sent. Maxim D. ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [August 9, 2011, 4:23pm UTC](https://www.ruby-forum.com/t/netbsd-nginx-0-8-53-accept-filters-not-working/210475/8 "2011-08-09T16:23:20Z")
Maxim, According to [fxr.watson.org: identifier "SO\_ACCEPTFILTER"](http://fxr.watson.org/fxr/ident?im=bigexcerpts;i=SO_ACCEPTFILTER), SO\_ACCEPTFILTER is defined as 0x1000, and I see this: 23235 1 nginx CALL setsockopt(7,0xffff,0x1000,0x7f7fffffd410,0x100) 23235 1 nginx RET setsockopt 0 From the manpage: RETURN VALUES A 0 is returned if the call succeeds, -1 if it fails. Regards, Hugo Posted at Nginx Forum: > **[Re: NetBSD + nginx-0.8.53 + accept filters - not working](https://forum.nginx.org/read.php?2,213567,213582#msg-213582)** > > Hello, Giving nginx a spin on NetBSD, I noticed: accept filters "accept\_filter=httpready" are not supported on this platform, ignored in /usr/pkg/etc/nginx/nginx.conf:40 But NetBSD does support them: accf\_http (9) - buffer incoming...