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systemtap/systemtap-CVE-2009-4273.diff

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Accepting request 34653 from devel:tools Copy from devel:tools/systemtap based on submit request 34653 from user jones_tony OBS-URL: https://build.opensuse.org/request/show/34653 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/systemtap?expand=0&rev=50
2010-03-12 01:39:21 +01:00
Subject: VUL-0: systemtap-server code exec
References: bnc#574243
Signed-Off-By: Tony Jones <tonyj@suse.de>
Fix remaining portions of this CVE (part2) still present post release-1.1
This second part is also referred to as CVE-2010-0412
Covers cases such as stap-client -B CC=/bin/rm CFLAGS=/ ... where the
execution is done by make
commit b75067caf1bb416af21473e40c917d953531e9f9
Author: Dave Brolley <brolley@redhat.com>
Date: Mon Jan 18 11:56:13 2010 -0500
Correct client-side quoting issues discovered by fche during the server-side reimplementation.
Also add the test cases to the test suite.
commit 241443ad36a5a2cacb9e8e6f12f808d304835f2a
Author: Dave Brolley <brolley@redhat.com>
Date: Tue Feb 2 08:26:01 2010 -0500
PR 11105: Remaining client-side problems:
stap-client: Correct handling of embedded newlines in arguments.
server_args.exp: Add additional cases discovered by fche and by fuzzing.
commit 4240be911e37b817727ecb33f321f0ea389ede61
Author: Dave Brolley <brolley@redhat.com>
Date: Mon Feb 15 15:01:28 2010 -0500
Don't pass client-only options to the server.
Also correct parsing of the --server option.
commit d2334a2233f4efd055dab021c603f7c046730a66
Author: Dave Brolley <brolley@redhat.com>
Date: Tue Feb 2 14:08:31 2010 -0500
Compile server logging and robustness.
Log certificate location and status when starting server.
Additional care in handling arguments in stap-serverd.
New test case discovered by fuzzing added and fixed.
commit c0d1b5a004b9949bb455b7dbe17b335b7cab9ead
Author: Frank Ch. Eigler <fche@elastic.org>
Date: Fri Feb 12 10:25:43 2010 -0500
PR11105 part 2: tighten constraints on stap-server parameters passed to make
* util.h, util.cxx (assert_match_regexp): New function.
* main.cxx (main): Constrain -R, -r, -a, -D, -S, -q, -B flags.
* stap-serverd (listen): Harden stap-server-connect with ulimit/loop.
* testsuite/systemtap.server/{client,server}_args.exp: Revised.
commit cc9e5488d82b728e568bca1f8d6094856fc8e641
Author: Frank Ch. Eigler <fche@elastic.org>
Date: Fri Feb 12 10:39:58 2010 -0500
PR11105 part 2a, fix buggy \\. in -r option regexp
---
main.cxx | 24 ++--
stap-client | 151 +++++++++++++++++------------
stap-gen-cert | 43 ++++----
stap-serverd | 40 +++++--
testsuite/systemtap.server/client_args.exp | 28 ++---
testsuite/systemtap.server/hello.stp | 2
testsuite/systemtap.server/server_args.exp | 49 +++++----
util.cxx | 36 ++++++
util.h | 2
9 files changed, 238 insertions(+), 137 deletions(-)
--- a/main.cxx
+++ b/main.cxx
@@ -57,7 +57,7 @@ version ()
<< "SystemTap translator/driver "
<< "(version " << VERSION << "/" << dwfl_version (NULL)
<< " " << GIT_MESSAGE << ")" << endl
- << "Copyright (C) 2005-2009 Red Hat, Inc. and others" << endl
+ << "Copyright (C) 2005-2010 Red Hat, Inc. and others" << endl
<< "This is free software; see the source for copying conditions." << endl;
}
@@ -670,12 +670,12 @@ main (int argc, char * const argv [])
break;
case 'o':
+ // NB: client_options not a problem, since pass 1-4 does not use output_file.
s.output_file = string (optarg);
break;
case 'R':
- if (client_options)
- client_options_disallowed += client_options_disallowed.empty () ? "-R" : ", -R";
+ if (client_options) { cerr << "ERROR: -R invalid with --client-options" << endl; usage(s,1); }
s.runtime_path = string (optarg);
break;
@@ -684,6 +684,7 @@ main (int argc, char * const argv [])
client_options_disallowed += client_options_disallowed.empty () ? "-m" : ", -m";
s.module_name = string (optarg);
save_module = true;
+ // XXX: convert to assert_regexp_match()
{
string::size_type len = s.module_name.length();
@@ -728,15 +729,14 @@ main (int argc, char * const argv [])
break;
case 'r':
- if (client_options)
- client_options_disallowed += client_options_disallowed.empty () ? "-r" : ", -r";
+ if (client_options) // NB: no paths!
+ assert_regexp_match("-r parameter from client", optarg, "^[a-z0-9_.-]+$");
setup_kernel_release(s, optarg);
break;
case 'a':
- if (client_options)
- client_options_disallowed += client_options_disallowed.empty () ? "-a" : ", -a";
- s.architecture = string(optarg);
+ assert_regexp_match("-a parameter", optarg, "^[a-z0-9_-]+$");
+ s.architecture = string(optarg);
break;
case 'k':
@@ -783,16 +783,19 @@ main (int argc, char * const argv [])
break;
case 'D':
+ assert_regexp_match ("-D parameter", optarg, "^[a-z_][a-z_0-9]*(=[a-z_0-9]+)?$");
if (client_options)
client_options_disallowed += client_options_disallowed.empty () ? "-D" : ", -D";
s.macros.push_back (string (optarg));
break;
case 'S':
+ assert_regexp_match ("-S parameter", optarg, "^[0-9]+(,[0-9]+)?$");
s.size_option = string (optarg);
break;
case 'q':
+ if (client_options) { cerr << "ERROR: -q invalid with --client-options" << endl; usage(s,1); }
s.tapset_compile_coverage = true;
break;
@@ -823,9 +826,8 @@ main (int argc, char * const argv [])
break;
case 'B':
- if (client_options)
- client_options_disallowed += client_options_disallowed.empty () ? "-B" : ", -B";
- s.kbuildflags.push_back (string (optarg));
+ if (client_options) { cerr << "ERROR: -B invalid with --client-options" << endl; usage(s,1); }
+ s.kbuildflags.push_back (string (optarg));
break;
case 0:
--- a/stap-client
+++ b/stap-client
@@ -2,7 +2,7 @@
# Compile server client for systemtap
#
-# Copyright (C) 2008, 2009, 2010 Red Hat Inc.
+# Copyright (C) 2008-2010 Red Hat Inc.
#
# This file is part of systemtap, and is free software. You can
# redistribute it and/or modify it under the terms of the GNU General
@@ -84,34 +84,34 @@ function parse_options {
# Each command line argument will be written to its own file within the
# request package.
argc=1
+ packed_options='-'
arg_subst=
while test $# != 0
do
advance=0
dash_seen=0
+ client_arg=0
# Start of a new token.
first_token="$1"
until test $advance != 0
do
# Identify the next option
- first_char=`expr "$first_token" : '\(.\).*'`
+ first_char="${first_token:0:1}"
second_char=
if test $dash_seen = 0; then
if test "$first_char" = "-"; then
if test "$first_token" != "-"; then
# It's not a lone dash, so it's an option.
# Is it a long option (i.e. --option)?
- second_char=`expr "$first_token" : '.\(.\).*'`
+ second_char="${first_token:1:1}"
if test "X$second_char" = "X-"; then
- long_option=`expr "$first_token" : '--\(.*\)=.*'`
- test "X$long_option" != "X" || long_option=`expr "$first_token" : '--\(.*\)'`
- case $long_option in
- ssl)
+ case "$first_token" in
+ --ssl=*)
process_ssl "$first_token"
;;
- server)
+ --server=*)
process_server "$first_token"
;;
*)
@@ -123,9 +123,9 @@ function parse_options {
fi
# It's not a lone dash, or a long option, so it's a short option string.
# Remove the dash.
- first_token=`expr "$first_token" : '-\(.*\)'`
+ first_token="${first_token:1}"
dash_seen=1
- first_char=`expr "$first_token" : '\(.\).*'`
+ first_char="${first_token:0:1}"
fi
fi
if test $dash_seen = 0; then
@@ -145,69 +145,69 @@ function parse_options {
# We are at the start of an option. Look at the first character.
case $first_char in
a)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
process_a "$stap_arg"
;;
B)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
;;
c)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
process_c "$stap_arg"
;;
D)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
;;
e)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
process_e "$stap_arg"
;;
I)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
process_I "$stap_arg"
;;
k)
keep_temps=1
;;
l)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
p_phase=2
;;
L)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
p_phase=2
;;
m)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
process_m "$stap_arg"
;;
o)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
process_o "$stap_arg"
;;
p)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
process_p "$stap_arg"
;;
r)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
process_r "$stap_arg"
;;
R)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
process_R "$stap_arg"
;;
s)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
;;
S)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
;;
v)
v_level=$(($v_level + 1))
;;
x)
- get_arg $first_token "$2"
+ get_arg "$first_token" "$2"
;;
*)
# An unknown or unimportant flag.
@@ -216,7 +216,7 @@ function parse_options {
if test $advance = 0; then
# Just another flag character. Consume it.
- first_token=`expr "$first_token" : '.\(.*\)'`
+ first_token="${first_token:1}"
if test "X$first_token" = "X"; then
advance=$(($advance + 1))
fi
@@ -224,9 +224,19 @@ function parse_options {
done
# Consume the arguments we just processed.
- while test $advance != 0
- do
- # Place the argument is a numbered file within our temp
+ while test $advance != 0; do
+ # Does the final argument file contain a client-side file
+ # name which must be changed to a server-side name?
+ local arg
+ if test "X$arg_subst" != "X" -a $advance = 1; then
+ arg="$arg_subst"
+ arg_subst=
+ else
+ arg="$1"
+ fi
+
+ # If it's not client-only argument,
+ # place the argument in a numbered file within our temp
# directory.
# o We don't write a newline at the end, since newline could be
# part of the argument.
@@ -234,20 +244,16 @@ function parse_options {
# in order to avoid having 'echo' interpret the output as
# its own option. We then remove the X.
# There must be a better way.
- echo -n "X$1" > "$tmpdir_client/argv$argc"
- sed -i "s|^X||" "$tmpdir_client/argv$argc"
-
- # Does the final argument file contain client-side data
- # which must be changed to server-side data?
- if test "X$arg_subst" != "X" -a $advance = 1; then
- sed -i "s|$stap_arg|$arg_subst|" "$tmpdir_client/argv$argc"
- arg_subst=
+ if test $client_arg = 0; then
+ echo -n "X$arg" > "$tmpdir_client/argv$argc"
+ sed -i "s|^X||" "$tmpdir_client/argv$argc"
+ argc=$(($argc + 1))
fi
# Get the next argument.
shift
- argc=$(($argc + 1))
advance=$(($advance - 1))
+ packed_options='-'
done
done
@@ -256,7 +262,8 @@ function parse_options {
if test "X$script_file" != "X"; then
local local_name
if test "$script_file" != "-"; then
- local_name=`generate_client_temp_name "$script_file"`
+ generate_client_temp_name "$script_file"
+ local_name="$client_temp_name"
else
local_name="-"
fi
@@ -277,8 +284,9 @@ function parse_options {
# Collect an argument to the given option
function get_arg {
# Remove first character.
- local opt=`expr "$1" : '\(.\).*'`
- local first=`expr "$1" : '.\(.*\)'`
+ local opt="${1:0:1}"
+ local first="${1:1}"
+ packed_options="${packed_options}$opt"
# Advance to the next token, if the first one is exhausted.
if test "X$first" = "X"; then
@@ -294,7 +302,8 @@ function get_arg {
#
# Process the --ssl option.
function process_ssl {
- local db=`expr "$1" : '--ssl=\(.*\)'`
+ client_arg=1
+ local db="${1:6}"
test "X$db" != "X" || \
fatal "Missing argument to --ssl"
@@ -308,7 +317,8 @@ function process_ssl {
#
# Process the --server option.
function process_server {
- local spec=`expr "$1" : '--server=\(.*\)'`
+ client_arg=1
+ local spec="${1:9}"
test "X$spec" != "X" || \
fatal "Missing argument to --server"
@@ -335,12 +345,19 @@ function process_e {
fi
}
-# function: process_I ARGUMENT
+# function: process_I ARGUMENT ORIGINAL_ARGUMENT
#
# Process the -I flag.
function process_I {
test "X$1" = "X" && return
- arg_subst=tapsets/`include_file_or_directory tapsets "$1"`
+ test "${1:0:1}" = "
+" && return
+ include_file_or_directory tapsets "$1"
+ if test $advance = 1; then
+ arg_subst="${packed_options}tapsets/$included_name"
+ else
+ arg_subst="tapsets/$included_name"
+ fi
}
# function: process_m ARGUMENT
@@ -369,7 +386,7 @@ function process_p {
#
# Process the -r flag.
function process_r {
- local first_char=`expr "$1" : '\(.\).*'`
+ local first_char="${1:0:1}"
if test "$first_char" = "/"; then # fully specified path
kernel_build_tree="$1"
@@ -402,23 +419,34 @@ function process_a {
fi
}
-# function: process_R ARGUMENT
+# function: process_R ARGUMENT ORIGINAL_ARGUMENT
#
# Process the -R flag.
function process_R {
test "X$1" = "X" && return
- arg_subst=runtime/`include_file_or_directory runtime "$1"`
+ test "${1:0:1}" = "
+" && return
+ include_file_or_directory runtime "$1"
+ if test $advance = 1; then
+ arg_subst="${packed_options}runtime/$included_name"
+ else
+ arg_subst="runtime/$included_name"
+ fi
}
# function: include_file_or_directory PREFIX NAME
#
# Include the given file or directory in the client's temporary
-# tree to be sent to the server.
+# tree to be sent to the server and save it's name in the variable
+# included_name. We use a global variable instread of echoing the
+# result since the use of `include_file_or_directory` loses a trailing
+# newline.
function include_file_or_directory {
# Add a symbolic link of the named file or directory to our temporary
# directory, but only if the file or directory exists.
- local local_name=`generate_client_temp_name "$2"`
- echo "$local_name"
+ generate_client_temp_name "$2"
+ local local_name="$client_temp_name"
+ included_name="$local_name"
test -e "/$local_name" || return
local local_dirname=`dirname "$local_name"`
@@ -431,15 +459,20 @@ function include_file_or_directory {
# function: generate_client_temp_name NAME
#
# Generate the name to be used for the given file/directory relative to the
-# client's temporary directory.
+# client's temporary directory and stores it in the variable
+# client_temp_name. We use a global variable instread of echoing the
+# result since the use of `generate_client_temp_name` loses a trailing
+# newline.
function generate_client_temp_name {
# Transform the name into a fully qualified path name
- local full_name=`echo "X$1" | sed "s,^X\\\([^/]\\\),$wd/\\\\1," | sed 's,^X,,'`
+ local full_name="$1"
+ test "${full_name:0:1}" != "/" && full_name="$wd/$full_name"
# The same name without the initial / or trailing /
- local local_name=`echo "$full_name" | sed 's,^/\(.*\),\1,'`
- local_name=`echo "$local_name" | sed 's,\(.*\)/$,\1,'`
- echo "$local_name"
+ local local_name="${full_name:1}"
+ test "${local_name: -1:1}" = "/" && local_name="${local_name:0:$((${#local_name}-1))}"
+
+ client_temp_name="$local_name"
}
# function: create_request
@@ -456,7 +489,7 @@ function create_request {
fatal "Cannot create temporary directory " $tmpdir_client/script
cat > "$tmpdir_client/script/$script_file"
else
- include_file_or_directory script "$script_file" > /dev/null
+ include_file_or_directory script "$script_file"
fi
fi
@@ -505,7 +538,7 @@ function unpack_response {
# 2) a file called stderr
# 3) a file called rc
# 4) optionally a directory named to match stap??????
- num_files=`ls $tmpdir_server | wc -l`
+ local num_files=`ls $tmpdir_server | wc -l`
test $num_files = 4 -o $num_files = 3 || \
fatal "Wrong number of files in server's temp directory"
test -f $tmpdir_server/stdout || \
--- a/stap-gen-cert
+++ b/stap-gen-cert
@@ -3,7 +3,7 @@
# Generate a certificate for the systemtap server and add it to the
# database of trusted servers for the client.
#
-# Copyright (C) 2008, 2009 Red Hat Inc.
+# Copyright (C) 2008-2010 Red Hat Inc.
#
# This file is part of systemtap, and is free software. You can
# redistribute it and/or modify it under the terms of the GNU General
@@ -14,61 +14,68 @@
. ${PKGLIBEXECDIR}stap-env
# Obtain the certificate database directory name.
-serverdb=$1
+serverdb="$1"
if test "X$serverdb" = "X"; then
- serverdb=$stap_ssl_db/server
+ serverdb="$stap_ssl_db/server"
fi
-rm -fr $serverdb
+rm -fr "$serverdb"
# Create the server's certificate database directory.
-if ! mkdir -p -m 755 $serverdb; then
+if ! mkdir -p -m 755 "$serverdb"; then
echo "Unable to create the server certificate database directory: $serverdb" >&2
exit 1
fi
# Create the certificate database password file. Care must be taken
# that this file is only readable by the owner.
-if ! (touch $serverdb/pw && chmod 600 $serverdb/pw); then
+if ! (touch "$serverdb/pw" && chmod 600 "$serverdb/pw"); then
echo "Unable to create the server certificate database password file: $serverdb/pw" >&2
exit 1
fi
# Generate a random password.
-mkpasswd -l 20 > $serverdb/pw 2>/dev/null || \
-apg -a 1 -n 1 -m 20 -x 20 > $serverdb/pw 2>/dev/null || \
-(read -n20 password </dev/urandom; echo "$password" > $serverdb/pw)
+mkpasswd -l 20 > "$serverdb/pw" 2>/dev/null || \
+apg -a 1 -n 1 -m 20 -x 20 > "$serverdb/pw" 2>/dev/null || \
+(read -n20 password </dev/urandom; echo "$password" > "$serverdb/pw")
# Generate the server certificate database
-if ! certutil -N -d $serverdb -f $serverdb/pw > /dev/null; then
+if ! certutil -N -d "$serverdb" -f "$serverdb/pw" > /dev/null; then
echo "Unable to initialize the server certificate database directory: $serverdb" >&2
exit 1
fi
# We need some random noise for generating keys
-dd bs=123 count=1 < /dev/urandom > $serverdb/noise 2> /dev/null
+dd bs=123 count=1 < /dev/urandom > "$serverdb/noise" 2> /dev/null
# Generate a request for the server's certificate.
-certutil -R -d $serverdb -f $serverdb/pw -s "CN=Systemtap Compile Server, OU=Systemtap, O=Red Hat, C=US" -o $serverdb/stap.req -z $serverdb/noise 2> /dev/null
-rm -fr $serverdb/noise
+certutil -R -d "$serverdb" -f "$serverdb/pw" -s "CN=Systemtap Compile Server, OU=Systemtap, O=Red Hat, C=US" \
+ -o "$serverdb/stap.req" -z "$serverdb/noise" 2> /dev/null
+rm -fr "$serverdb/noise"
# Create the certificate file first so that it always has the proper access permissions.
-if ! (touch $serverdb/$stap_certfile && chmod 644 $serverdb/$stap_certfile); then
+if ! (touch "$serverdb/$stap_certfile" && chmod 644 "$serverdb/$stap_certfile"); then
echo "Unable to create the server certificate file: $serverdb/$stap_certfile" >&2
exit 1
fi
-# Now generate the actual certificate.
-certutil -C -i $serverdb/stap.req -o $serverdb/$stap_certfile -x -d $serverdb -f $serverdb/pw -5 -8 "$HOSTNAME,localhost" >/dev/null <<-EOF
+# Now generate the actual certificate. Make is valid for 1 year.
+certutil -C -i "$serverdb/stap.req" -o "$serverdb/$stap_certfile" -x -d "$serverdb" \
+ -f "$serverdb/pw" -v 12 -5 -8 "$HOSTNAME,localhost" >/dev/null <<-EOF
1
3
7
8
y
EOF
-rm -fr $serverdb/stap.req
+rm -fr "$serverdb/stap.req"
# Add the certificate to the server's certificate/key database as a trusted peer, ssl server and object signer
-certutil -A -n stap-server -t "PCu,,PCu" -i $serverdb/$stap_certfile -d $serverdb -f $serverdb/pw
+certutil -A -n stap-server -t "PCu,,PCu" -i "$serverdb/$stap_certfile" -d "$serverdb" -f "$serverdb/pw"
+# Print some information about the certificate.
echo "Certificate $serverdb/$stap_certfile created and added to database $serverdb"
+certutil -L -d "$serverdb" -n stap-server | \
+ awk '/Validity|Not After|Not Before/ { print $0 }' | \
+ sed 's/^ */ /'
+
exit 0
--- a/stap-serverd
+++ b/stap-serverd
@@ -70,12 +70,18 @@ function initialization {
-x `which ${stap_exec_prefix}stap-client 2>/dev/null`; then
${stap_exec_prefix}stap-authorize-server-cert $ssl_db/$stap_certfile >> $logfile 2>&1
fi
- elif ! test -f $stap_ssl_db/client/cert8.db; then
- # If the client's database does not exist, then initialize it with our certificate.
- # Do this only if the client has been installed.
- if test -f `which ${stap_exec_prefix}stap-client` -a \
- -x `which ${stap_exec_prefix}stap-client`; then
- ${stap_exec_prefix}stap-authorize-server-cert $ssl_db/$stap_certfile >> $logfile 2>&1
+ else
+ echo "Certificate found in database $ssl_db" >> $logfile
+ certutil -L -d "$ssl_db" -n stap-server | \
+ awk '/Validity|Not After|Not Before/ { print $0 }' | \
+ sed 's/^ */ /' >> $logfile
+ if ! test -f $stap_ssl_db/client/cert8.db; then
+ # If the client's database does not exist, then initialize it with our certificate.
+ # Do this only if the client has been installed.
+ if test -f `which ${stap_exec_prefix}stap-client 2>/dev/null` -a \
+ -x `which ${stap_exec_prefix}stap-client 2>/dev/null`; then
+ ${stap_exec_prefix}stap-authorize-server-cert $ssl_db/$stap_certfile >> $logfile 2>&1
+ fi
fi
fi
fi
@@ -343,11 +349,19 @@ function advertise_presence {
function listen {
# The stap-server-connect program will listen forever
# accepting requests.
- ${stap_pkglibexecdir}stap-server-connect \
- -p $port -n $nss_cert -d $ssl_db -w $nss_pw \
- -s "$stap_options" \
- >> $logfile 2>&1 &
- wait '%${stap_pkglibexecdir}stap-server-connect' >> $logfile 2>&1
+ # CVE-2009-4273 ... or at least, until resource limits fire
+ while true; do # NB: loop to avoid DoS by deliberate rlimit-induced halt
+ # NB: impose resource limits in case of mischevious data inducing
+ # too much / long computation
+ (ulimit -f 50000 -s 1000 -t 60 -u 20 -v 500000;
+ exec ${stap_pkglibexecdir}stap-server-connect \
+ -p $port -n $nss_cert -d $ssl_db -w $nss_pw \
+ -s "$stap_options") &
+ stap_server_connect_pid=$!
+ wait
+ # NB: avoid superfast spinning in case of a ulimit or other failure
+ sleep 1
+ done >> $logfile 2>&1
}
# function: warning [ MESSAGE ]
@@ -379,8 +393,8 @@ function terminate {
wait '%avahi-publish-service' >> $logfile 2>&1
# Kill any running 'stap-server-connect' job.
- kill -s SIGTERM '%${stap_pkglibexecdir}stap-server-connect' >> $logfile 2>&1
- wait '%${stap_pkglibexecdir}stap-server-connect' >> $logfile 2>&1
+ kill -s SIGTERM $stap_server_connect_pid >> $logfile 2>&1
+ wait $stap_server_connect_pid >> $logfile 2>&1
exit
}
--- a/testsuite/systemtap.server/client_args.exp
+++ b/testsuite/systemtap.server/client_args.exp
@@ -5,33 +5,34 @@ set test "Invalid Server Client Argument
set test_file $srcdir/systemtap.server/test.stp
# Test invalid combinations.
-set error_regexp ".*You can't specify .* when --unprivileged is specified.*"
+set error_regexp ".*(ERROR)|(You can't specify .* when --unprivileged is specified).*"
set invalid_options [list \
- "--unprivileged --client-options -a i386" \
"--unprivileged --client-options -B X=Y" \
"--unprivileged --client-options -D X=Y" \
"--unprivileged --client-options -I /tmp" \
"--unprivileged --client-options -m test" \
"--unprivileged --client-options -R /tmp" \
- "--unprivileged --client-options -r [exec uname -r]" \
- "--unprivileged --client-options -a i386 -B X=Y -D X=Y -I /tmp -m test -R /tmp -r [exec uname -r]" \
- "--client-options --unprivileged -a i386" \
+ "--unprivileged --client-options -B X=Y -D X=Y -I /tmp -m test -R /tmp -r [exec uname -r]" \
"--client-options --unprivileged -B X=Y" \
"--client-options --unprivileged -D X=Y" \
"--client-options --unprivileged -I /tmp" \
"--client-options --unprivileged -m test" \
"--client-options --unprivileged -R /tmp" \
- "--client-options --unprivileged -r [exec uname -r]" \
- "--client-options --unprivileged -a i386 -B X=Y -D X=Y -I /tmp -m test -R /tmp -r [exec uname -r]" \
- "--client-options -a i386 --unprivileged" \
+ "--client-options --unprivileged -B X=Y -D X=Y -I /tmp -m test -R /tmp -r [exec uname -r]" \
"--client-options -B X=Y --unprivileged" \
"--client-options -D X=Y --unprivileged" \
"--client-options -I /tmp --unprivileged" \
"--client-options -m test --unprivileged" \
"--client-options -R /tmp --unprivileged" \
- "--client-options -r [exec uname -r] --unprivileged" \
- "--client-options -a i386 -B X=Y -D X=Y -I /tmp -m test -R /tmp -r [exec uname -r] --unprivileged" \
+ "--client-options -B X=Y -D X=Y -I /tmp -m test -R /tmp -r [exec uname -r] --unprivileged" \
+ "--client-options -R /path" \
+ "-D \"foo;bar\"" \
+ "-D 2=4" \
+ "-D \"foo;bar\"" \
+ "--client-options -r /path" \
+ "-S /path" \
+ "--client-options -q" \
]
foreach options $invalid_options {
@@ -66,9 +67,8 @@ set valid_options [list \
"-D X=Y" \
"-I /tmp" \
"-m test" \
- "-R /tmp" \
"-r [exec uname -r]" \
- "-a i386 -B X=Y -D X=Y -I /tmp -m test -R /tmp -r [exec uname -r]" \
+ "-a i386 -B X=Y -D X=Y -I /tmp -m test -r [exec uname -r]" \
"--unprivileged" \
"--unprivileged -a i386" \
"--unprivileged -B X=Y" \
@@ -80,13 +80,11 @@ set valid_options [list \
"--unprivileged -a i386 -B X=Y -D X=Y -I /tmp -m test -R /tmp -r [exec uname -r]" \
"--client-options" \
"--client-options -a i386" \
- "--client-options -B X=Y" \
"--client-options -D X=Y" \
"--client-options -I /tmp" \
"--client-options -m test" \
- "--client-options -R /tmp" \
"--client-options -r [exec uname -r]" \
- "--client-options -a i386 -B X=Y -D X=Y -I /tmp -m test -R /tmp -r [exec uname -r]" \
+ "--client-options -a i386 -D X=Y -I /tmp -m test -r [exec uname -r]" \
"--unprivileged --client-options" \
"--client-options --unprivileged" \
"--unprivileged -a i386 --client-options" \
--- a/testsuite/systemtap.server/hello.stp
+++ b/testsuite/systemtap.server/hello.stp
@@ -1,4 +1,4 @@
-#! stap
+#! stap -p5
probe begin
{
--- a/testsuite/systemtap.server/server_args.exp
+++ b/testsuite/systemtap.server/server_args.exp
@@ -40,11 +40,13 @@ proc stap_direct_and_with_client {stap s
# Some messages contain the names of files or directories
# and will be prefixed for the client.
if {[regexp "^ (.*)" $expected_line match data]} {
- if {[regexp "^ tapsets/.*/$data" $line]} {
+ # Special characters in the regexp need to be quoted.
+ regsub -all "\[\"\\\\;\*\]" $data {\\\0} data
+ if {[regexp "^ tapsets.*/$data" $line]} {
incr n
continue
}
- if {[regexp "^ runtime/.*/$data" $line]} {
+ if {[regexp "^ runtime.*/$data" $line]} {
incr n
continue
}
@@ -57,7 +59,9 @@ proc stap_direct_and_with_client {stap s
}
} else {
if {[regexp "^Input file '(.*)' is empty or missing." $expected_line match data]} {
- if {[regexp "^Input file 'script/.*/$data' is empty or missing." $line]} {
+ # Special characters in the regexp need to be quoted.
+ regsub -all "\[\"\\\\;\*\]" $data {\\\0} data
+ if {[regexp "^Input file 'script.*/$data' is empty or missing." $line]} {
incr n
continue
}
@@ -110,21 +114,27 @@ if {[installtest_p]} then {
# for debugging a currently failing case and helps to ensure that previously
# fixed cases do not regress.
set previously_fixed [list \
+ "-p1 -I=\\w94\nbh -e -Dhfuo0iu7 -c" \
+ "-p1 -I8o\\2ie -e'1\\ -D\n\" -c" \
+ "-p1 -Ira\\3;c g -e0fle'qq -Dr/316k\\o8 -cjyoc\n3" \
+ "-p1 -I6p3 -elc -Dqgsgv' -c" \
+ "-p1 -I\"vyv;z -ej\"/3 -D/ 01qck\n -c3u55zut" \
+ "-p1 -I1 -eo9e\nx047q -D9xyefk0a -cvl98/x1'i" \
"-p1 -c; test.stp" \
- "-p1 -I4hgy96 -R -e5oo39p -Bile\\vp -Ddx8v -c4;" \
- "-p1 -I -Repwd9 -esq3wors -Btmk;\\t -Dz -c*eibz8h2e" \
- "-p1 -I -Ry a -em339db5 -B;ae41428d -Du2;c0ps -ch9o\\" \
- "-p1 -Ipfjps4 -Rx479 -ebug4dc -Bih;fe2 -Du8vd fvkl -c" \
- "-p1 -I0\"nspzjyf -R -e5r3up8h -Bgqnyjq6w -Dmi;ojp9m -cx;a2fat" \
- "-p1 -Iu -R9 -ek7;r -Big -Dcu\"; -c\"hc" \
- "-p1 -Icd4fidq -Rkj m40mv -edn -B7ria -D;8ha\\cjr -c1*vnq" \
- "-p1 -I;3 -R3lq;vp -er8e -Bgdqjqdy -D -cb6k29z" \
- "-p1 -Ircj -R -e -B -D -c\\vmww" \
- "-p1 -Illc5 -Rug*\\o -e65wof9 -B qr*=x7x5 -D -cgx;" \
- "-p1 -Iyaj420=3 -R -e\" -Bx68j -D -cd'5mi" \
- "-p1 -Ir -Rwd8;;sjl -e -Bxh; -D29\\ -cj2szt;4" \
- "-p1 -Ibno3=b4sk -R*5 -e' -Byl63flos -Dg2-j;e -c2ijx'" \
- "-p1 -I285v7pl -R9a -eo5\\0 -Bfs* -D86s -c-c*v" \
+ "-p1 -I4hgy96 -e5oo39p -Ddx8v -c4;" \
+ "-p1 -I -esq3wors -Dz -c*eibz8h2e" \
+ "-p1 -I a -em339db5 -Du2;c0ps -ch9o\\" \
+ "-p1 -Ipfjps4 -ebug4dc -Du8vd fvkl -c" \
+ "-p1 -I0\"nspzjyf -e5r3up8h -Dmi;ojp9m -cx;a2fat" \
+ "-p1 -Iu -ek7;r -Dcu\"; -c\"hc" \
+ "-p1 -Icd4fidq m40mv -edn -D;8ha\\cjr -c1*vnq" \
+ "-p1 -I;3 -er8e -D -cb6k29z" \
+ "-p1 -Ircj -e -D -c\\vmww" \
+ "-p1 -Illc5 -e65wof9 qr*=x7x5 -D -cgx;" \
+ "-p1 -Iyaj420=3 -e\" -D -cd'5mi" \
+ "-p1 -Ir -e -D29\\ -cj2szt;4" \
+ "-p1 -Ibno3=b4sk -e' -Dg2-j;e -c2ijx'" \
+ "-p1 -I285v7pl -eo5\\0 -D86s -c-c*v" \
]
set i 0
@@ -140,7 +150,10 @@ foreach options $previously_fixed {
# Generate semi-random arguments containing with potential problem characters.
# Check that running systemtap with the client/server generates output
# comparable to running stap directly.
-set dangerous_options [list "-I" "-R" "-e" "-B" "-D" "-c"]
+set dangerous_options [list "-I" "-e" "-D" "-c" "-S"]
+# NB: Other options could be candidates here, like -r and -B, but
+# there stap-server imposes more restrictions than local stap, so
+# this simple error-matching test cannot use them.
set argchars "0123456789/;*'=-\\\"\n abcdefghijklmnopqrstuvwxyz"
for {set i 0} {$i < $iterations} {incr i} {
--- a/util.cxx
+++ b/util.cxx
@@ -1,5 +1,5 @@
// Copyright (C) Andrew Tridgell 2002 (original file)
-// Copyright (C) 2006, 2009 Red Hat Inc. (systemtap changes)
+// Copyright (C) 2006-2010 Red Hat Inc. (systemtap changes)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
@@ -19,6 +19,8 @@
#include "sys/sdt.h"
#include <stdexcept>
#include <cerrno>
+#include <map>
+#include <string>
extern "C" {
#include <fcntl.h>
@@ -31,6 +33,7 @@ extern "C" {
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
+#include <regex.h>
}
using namespace std;
@@ -413,4 +416,35 @@ kill_stap_spawn(int sig)
return spawned_pid ? kill(spawned_pid, sig) : 0;
}
+
+void assert_regexp_match (const string& name, const string& value, const string& re)
+{
+ typedef map<string,regex_t*> cache;
+ static cache compiled;
+ cache::iterator it = compiled.find (re);
+ regex_t* r = 0;
+ if (it == compiled.end())
+ {
+ r = new regex_t;
+ int rc = regcomp (r, re.c_str(), REG_ICASE|REG_NOSUB|REG_EXTENDED);
+ if (rc) {
+ cerr << "regcomp " << re << " (" << name << ") error rc=" << rc << endl;
+ exit(1);
+ }
+ compiled[re] = r;
+ }
+ else
+ r = it->second;
+
+ // run regexec
+ int rc = regexec (r, value.c_str(), 0, 0, 0);
+ if (rc)
+ {
+ cerr << "ERROR: Safety pattern mismatch for " << name
+ << " ('" << value << "' vs. '" << re << "') rc=" << rc << endl;
+ exit(1);
+ }
+}
+
+
/* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */
--- a/util.h
+++ b/util.h
@@ -21,7 +21,7 @@ const std::string cmdstr_quoted(const st
std::string git_revision(const std::string& path);
int stap_system(int verbose, const std::string& command);
int kill_stap_spawn(int sig);
-
+void assert_regexp_match (const std::string& name, const std::string& value, const std::string& re);
// stringification generics
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