X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=stest%2Fcommon.tcl;h=566757c75d4cd87b077fe76b8a4879b96545cf11;hb=d939e5444828922f90b2646405025b4dd81f8988;hp=5952e9107bc6fbc6eb43a8a4302d7e0dd33a7657;hpb=6b4910f2646ac9cfda9b9426099d494218c28e0c;p=secnet.git

diff --git a/stest/common.tcl b/stest/common.tcl
index 5952e91..566757c 100644
--- a/stest/common.tcl
+++ b/stest/common.tcl
@@ -83,7 +83,7 @@ exec cat
     append cfg "
 	log logfile {
 	    prefix \"$site\";
-	    class \"info\",\"notice\",\"warning\",\"error\",\"security\",\"fatal\";
+	    class \"debug\",\"info\",\"notice\",\"warning\",\"error\",\"security\",\"fatal\";
 	};
     "
     append cfg {
@@ -110,28 +110,78 @@ proc spawn-secnet {location site} {
     global tmp
     global builddir
     global netlinkfh
+    global env
+    global pidmap
+    global readbuf
     upvar #0 pids($site) pid
+    set readbuf($site) {}
     set cf $tmp/$site.conf
     set ch [open $cf w]
     puts $ch [mkconf $location $site]
     close $ch
     set argl [list $builddir/secnet -dvnc $cf]
-    set pid [fork]
-    if {!$pid} {
-	execl [lindex $argl 0] [lrange $argl 1 end]
+    set divertk SECNET_STEST_DIVERT_$site
+    puts -nonewline "spawn"
+    foreach k [array names env] {
+	switch -glob $k {
+	    SECNET_STEST_DIVERT_* -
+	    SECNET_TEST_BUILDDIR { }
+	    *SECNET* -
+	    *PRELOAD* { puts -nonewline " $k=$env($k)" }
+	}
+    }
+    puts " $argl"
+    if {[info exists env($divertk)]} {
+	switch -glob $env($divertk) {
+	    i {
+		puts -nonewline "run ^ command, hit return "
+		flush stdout
+		gets stdin
+		set argl {}
+	    }
+	    0 - "" {
+	    }
+	    * {
+		set argl [split $env($divertk)]
+	    }
+	}
+    }
+    if {[llength $argl]} { 
+	set pid [fork]
+	set pidmap($pid) "secnet $location/$site"
+	if {!$pid} {
+	    execl [lindex $argl 0] [lrange $argl 1 end]
+	}
     }
     puts -nonewline $netlinkfh($site.t) [hbytes h2raw c0]
 }
 
 proc netlink-readable {location site} {
     global ok
+    upvar #0 readbuf($site) buf
     upvar #0 netlinkfh($site.r) fh
-    read $fh; # empty the buffer
+    while 1 {
+	set x [read $fh]
+	set h [hbytes raw2h $x]
+	if {![hbytes length $h]} return
+	append buf $h
+	#puts "READABLE $site buf=$buf"
+	while {[regexp {^((?:..)*?)c0(.*)$} $buf dummy now buf]} {
+	    #puts "READABLE $site now=$now (buf=$buf)"
+	    regsub -all {^((?:..)*?)dbdc} $now {\1c0} now
+	    regsub -all {^((?:..)*?)dbdd} $now {\1db} now
+	    puts "netlink-got-packet $location $site $now"
+	    netlink-got-packet $location $site $now
+	}
+    }
+}
+
+proc netlink-got-packet {location site data} {
+    if {![hbytes length $data]} return 
     switch -exact $site {
 	inside {
 	    puts OK
-	    set ok 1; # what a bodge
-	    return
+	    finish 0
 	}
 	outside {
 	    error "inside rx'd!"
@@ -151,7 +201,7 @@ $message
 ----------------------------------------
     "
     }
-    exit 1
+    finish 1
 }
 
 proc sendpkt {} {
@@ -170,13 +220,38 @@ proc sendpkt {} {
 
 set socktmp $tmp/s
 exec mkdir -p -m700 $socktmp
-regsub {^(?!/)} $socktmp {./} socktmp ;# dgram-socket wants ./ or /
+regsub {^(?!/|\./)} $socktmp {./} socktmp ;# dgram-socket wants ./ or /
 
 proc prefix_preload {lib} { prefix_some_path LD_PRELOAD $lib }
 
 set env(UDP_PRELOAD_DIR) $socktmp
 prefix_preload $builddir/stest/udp-preload.so
 
+proc finish {estatus} {
+    puts stderr "FINISHING $estatus"
+    signal default SIGCHLD
+    global pidmap
+    foreach pid [array names pidmap] {
+	kill KILL $pid
+    }
+    exit $estatus
+}
+
+proc reap {} {
+    global pidmap
+    #puts stderr REAPING
+    foreach pid [array names pidmap] {
+	set got [wait -nohang $pid]
+	if {![llength $got]} continue
+	set info $pidmap($pid)
+	unset pidmap($pid)
+	puts stderr "reaped $info: $got"
+	finish 1
+    }
+}
+
+signal -restart trap SIGCHLD { after idle reap }
+
 proc udp-proxy {} {
     global socktmp udpsock
     set u $socktmp/udp