Module Name: src Committed By: kefren Date: Mon Dec 2 09:39:54 UTC 2013
Modified Files: src/sys/netinet: tcp_usrreq.c Log Message: Update TCP CB with new values on rfc1323 and mssdflt sysctl updates >From yasu...@iij.ad.jp in kern/44254 To generate a diff of this commit: cvs rdiff -u -r1.169 -r1.170 src/sys/netinet/tcp_usrreq.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/netinet/tcp_usrreq.c diff -u src/sys/netinet/tcp_usrreq.c:1.169 src/sys/netinet/tcp_usrreq.c:1.170 --- src/sys/netinet/tcp_usrreq.c:1.169 Sat Nov 23 14:20:21 2013 +++ src/sys/netinet/tcp_usrreq.c Mon Dec 2 09:39:54 2013 @@ -1,4 +1,4 @@ -/* $NetBSD: tcp_usrreq.c,v 1.169 2013/11/23 14:20:21 christos Exp $ */ +/* $NetBSD: tcp_usrreq.c,v 1.170 2013/12/02 09:39:54 kefren Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. @@ -95,7 +95,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: tcp_usrreq.c,v 1.169 2013/11/23 14:20:21 christos Exp $"); +__KERNEL_RCSID(0, "$NetBSD: tcp_usrreq.c,v 1.170 2013/12/02 09:39:54 kefren Exp $"); #include "opt_inet.h" #include "opt_ipsec.h" @@ -1044,10 +1044,43 @@ sysctl_net_inet_tcp_mssdflt(SYSCTLFN_ARG return (EINVAL); tcp_mssdflt = mssdflt; + mutex_enter(softnet_lock); + tcp_tcpcb_template(); + mutex_exit(softnet_lock); + return (0); } /* + * sysctl helper for TCP CB template update + */ +static int +sysctl_update_tcpcb_template(SYSCTLFN_ARGS) +{ + int t, error; + struct sysctlnode node; + + /* follow procedures in sysctl(9) manpage */ + t = *(int *)rnode->sysctl_data; + node = *rnode; + node.sysctl_data = &t; + error = sysctl_lookup(SYSCTLFN_CALL(&node)); + if (error || newp == NULL) + return error; + + if (t < 0) + return EINVAL; + + *(int *)rnode->sysctl_data = t; + + mutex_enter(softnet_lock); + tcp_tcpcb_template(); + mutex_exit(softnet_lock); + + return 0; +} + +/* * sysctl helper routine for setting port related values under * net.inet.ip and net.inet6.ip6. does basic range checking and does * additional checks for each type. this code has placed in @@ -1686,7 +1719,7 @@ sysctl_net_inet_tcp_setup2(struct sysctl CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, "rfc1323", SYSCTL_DESCR("Enable RFC1323 TCP extensions"), - NULL, 0, &tcp_do_rfc1323, 0, + sysctl_update_tcpcb_template, 0, &tcp_do_rfc1323, 0, CTL_NET, pf, IPPROTO_TCP, TCPCTL_RFC1323, CTL_EOL); sysctl_createv(clog, 0, NULL, NULL, CTLFLAG_PERMANENT|CTLFLAG_READWRITE, @@ -1786,13 +1819,13 @@ sysctl_net_inet_tcp_setup2(struct sysctl CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, "win_scale", SYSCTL_DESCR("Use RFC1323 window scale options"), - NULL, 0, &tcp_do_win_scale, 0, + sysctl_update_tcpcb_template, 0, &tcp_do_win_scale, 0, CTL_NET, pf, IPPROTO_TCP, TCPCTL_WSCALE, CTL_EOL); sysctl_createv(clog, 0, NULL, NULL, CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, "timestamps", SYSCTL_DESCR("Use RFC1323 time stamp options"), - NULL, 0, &tcp_do_timestamps, 0, + sysctl_update_tcpcb_template, 0, &tcp_do_timestamps, 0, CTL_NET, pf, IPPROTO_TCP, TCPCTL_TSTAMP, CTL_EOL); sysctl_createv(clog, 0, NULL, NULL, CTLFLAG_PERMANENT|CTLFLAG_READWRITE,