mirror of
https://github.com/moparisthebest/arch-ppa
synced 2024-11-21 00:05:00 -05:00
Add force_bind
This commit is contained in:
parent
069303f73b
commit
4e37a607a1
40
src/force_bind/PKGBUILD
Normal file
40
src/force_bind/PKGBUILD
Normal file
@ -0,0 +1,40 @@
|
||||
# Maintainer: Kevin MacMartin <prurigro@gmail.com>
|
||||
|
||||
pkgname=force_bind
|
||||
pkgver=0.13
|
||||
pkgrel=1
|
||||
pkgdesc='Force binding on a specific IP and/or port, change TTL/TOS/KA/MSS/REUSEADDR/FWMARK/PRIORITY. Works with both IPv4 and IPv6. Also, you can enforce bandwidth per process or per socket'
|
||||
url='http://kernel.embedromix.ro/us/'
|
||||
license=('GPL3')
|
||||
arch=('i686' 'x86_64' 'armv6h' 'armv7h')
|
||||
depends=('glibc')
|
||||
|
||||
source=(
|
||||
"http://kernel.embedromix.ro/us/$pkgname/$pkgname-$pkgver.tar.gz"
|
||||
"$pkgname.1"
|
||||
"${pkgname}_null-to-strcmp-fix.patch"
|
||||
)
|
||||
|
||||
sha512sums=(
|
||||
'37aaac1407118bbeb2ec484318afb1d517979c620ace9eca87b609cf99e7c9cfdc03863d42f017f28567fcbb7f8a23fac33aa70fad379c7841da31be16143da1'
|
||||
'4eac471df6329f09ba4f8e66fbdd12daaff58221fbbfacf37d10d5017d9afcf8dd79d9330ca3044310c7c7cf4106f645fea81329d32f76cc15c8524d2677b0ad'
|
||||
'3e33eb1158dd89737fa62c018ff5af0419a3900315875363f30194c8ae0cceecd943d2c8e1f139127f5b092c428597f1a570ff072c0c29a60082bc6b990f4be9'
|
||||
)
|
||||
|
||||
prepare() {
|
||||
cd $pkgname-$pkgver
|
||||
patch -p1 < ../${pkgname}_null-to-strcmp-fix.patch
|
||||
}
|
||||
|
||||
build() {
|
||||
cd $pkgname-$pkgver
|
||||
./configure --prefix=/usr
|
||||
make
|
||||
}
|
||||
|
||||
package() {
|
||||
install -Dm644 $pkgname.1 "$pkgdir/usr/share/man/man1/$pkgname.1"
|
||||
cd $pkgname-$pkgver
|
||||
make DESTDIR="$pkgdir" install
|
||||
mv "$pkgdir/usr/lib64" "$pkgdir/usr/lib"
|
||||
}
|
||||
187
src/force_bind/force_bind.1
Normal file
187
src/force_bind/force_bind.1
Normal file
@ -0,0 +1,187 @@
|
||||
.TH FORCE_BIND "1"
|
||||
.SH NAME
|
||||
FORCE_BIND
|
||||
.SH AUTHOR
|
||||
Catalin(ux) M. BOIE \- catab at embedromix dot ro
|
||||
.SH DESCRIPTION
|
||||
Force an application to bind on a specific IP and/or port. Plus forcing setsockopt calls on the socket. Works with both IPv4 and IPv6.
|
||||
.TP
|
||||
It is useful if you have a binary application without sources and without the possibility to configure address or port to bind to.
|
||||
.SH LICENSE
|
||||
GPLv3
|
||||
.SH HOW IT WORKS
|
||||
force_bind is a shared object that is loaded with LD_PRELOAD and hooks 'bind' function. Forcing an IP/port to bind to is done with environments variables.
|
||||
.SH EXAMPLES
|
||||
0. Output debug stuff in a log file (for debugging):
|
||||
.TP
|
||||
\fB export FORCE_NET_VERBOSE=999
|
||||
.TP
|
||||
\fB export FORCE_NET_LOG="xxx.log"
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
1. Force bind to 127.0.0.1, port 33, verbose operations:
|
||||
.TP
|
||||
\fB export FORCE_NET_VERBOSE=1
|
||||
.TP
|
||||
\fB export FORCE_BIND_ADDRESS_V4=127.0.0.1
|
||||
.TP
|
||||
\fB export FORCE_BIND_PORT_V4=33
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
2. Force binding to 127.0.0.2, port unchanged
|
||||
.TP
|
||||
\fB export FORCE_BIND_ADDRESS_V4=127.0.0.2
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
3. Force binding to ::1 (IPv6), port unchanged
|
||||
.TP
|
||||
\fB export FORCE_BIND_ADDRESS_V6=::1
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
4. Changing TOS on all sockets to 30
|
||||
.TP
|
||||
\fB export FORCE_NET_TOS=30
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
5. Force Keep alive to 60 seconds:
|
||||
.TP
|
||||
\fB export FORCE_NET_KA=60
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
6. Force MSS to 1400
|
||||
.TP
|
||||
\fB export FORCE_NET_MSS=1400
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
7. Force bandwidth to 1000 bytes/s for _all_ connections, cumulated
|
||||
.TP
|
||||
\fB export FORCE_NET_BW=1000
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
8. Force bandwidth to 20000 bytes/s per socket
|
||||
.TP
|
||||
\fB export FORCE_NET_BW_PER_SOCKET=20000
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
9. Force REUSEADDR
|
||||
.TP
|
||||
\fB export FORCE_NET_REUSEADDR=1
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
10. Force NODELAY
|
||||
.TP
|
||||
\fB export FORCE_NET_NODELAY=1
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
11. Force client connections (for example 'telnet', 'ssh', 'firefox') to connect from a specified address, not the auto selected one:
|
||||
.TP
|
||||
\fB export FORCE_NET_VERBOSE=1
|
||||
.TP
|
||||
\fB export FORCE_BIND_ADDRESS_V4=127.0.0.2
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
12. Set a FLOWINFO (flow label + class) for a client connection:
|
||||
.TP
|
||||
\fB export FORCE_NET_VERBOSE=1
|
||||
.TP
|
||||
\fB export FORCE_NET_FLOWINFO=0x7812345 # class 0x78, label 0x12345
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
13. Force FWMARK on a connection (only root can do it):
|
||||
.TP
|
||||
\fB export FORCE_NET_VERBOSE=1
|
||||
.TP
|
||||
\fB export FORCE_NET_FWMARK=0x1234
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
14. Force priority (between 0 and 6 for non-root users). You can use 'tc' command from iproute to set-up 'prio' qdisc and to assign prio to queues:
|
||||
.TP
|
||||
\fB # 0. setup
|
||||
.TP
|
||||
\fB export FORCE_NET_VERBOSE=1
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB # 1. Make sure you have a 'prio' qdisc attached to eth0, for example:
|
||||
.TP
|
||||
\fB tc qdisc add ev eth0 root handle 1: prio
|
||||
.TP
|
||||
\fB # 2. Assign applications to classed (bands):
|
||||
.TP
|
||||
\fB export FORCE_NET_PRIO=6 # interactive, band 0
|
||||
.TP
|
||||
\fB your_voip_program_here
|
||||
.TP
|
||||
\fB export FORCE_NET_PRIO=0 # best effort, band 1
|
||||
.TP
|
||||
\fB your_mail_program_here
|
||||
.TP
|
||||
\fB export FORCE_NET_PRIO=2 # bulk, band 2
|
||||
.TP
|
||||
\fB your_remote_backup_program_here
|
||||
.TP
|
||||
\fB # 3. Run tc statistics so you can see the classification:
|
||||
.TP
|
||||
\fB tc -s class show dev eth0
|
||||
.TP
|
||||
15. Deny binding to any IPv4 sockets. The bind syscall will return -1 and errno will be set to EACCES.
|
||||
.TP
|
||||
\fB export FORCE_NET_VERBOSE=1
|
||||
.TP
|
||||
\fB export FORCE_BIND_ADDRESS_V4=deny
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
.TP
|
||||
16. Silent fake binding to any IPv6 sockets. The bind will return success, but will never accept any connection.
|
||||
.TP
|
||||
\fB export FORCE_NET_VERBOSE=1
|
||||
.TP
|
||||
\fB export FORCE_BIND_ADDRESS_V6=fake
|
||||
.TP
|
||||
\fB export LD_PRELOAD=${LD_PRELOAD}:/usr/lib/force_bind.so
|
||||
.TP
|
||||
\fB your_program_here
|
||||
14
src/force_bind/force_bind_null-to-strcmp-fix.patch
Normal file
14
src/force_bind/force_bind_null-to-strcmp-fix.patch
Normal file
@ -0,0 +1,14 @@
|
||||
diff --git a/force_bind.c b/force_bind.c
|
||||
index 644e3a7..5656a05 100644
|
||||
--- a/force_bind.c
|
||||
+++ b/force_bind.c
|
||||
@@ -916,6 +916,9 @@ int bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen)
|
||||
case AF_INET6: force_address = force_address_v6; break;
|
||||
}
|
||||
|
||||
+ if (force_address == NULL)
|
||||
+ break;
|
||||
+
|
||||
/* Test if we should deny the bind */
|
||||
if (strcmp(force_address, "deny") == 0) {
|
||||
xlog(1, "\tDeny binding to %s\n", tmp);
|
||||
Loading…
Reference in New Issue
Block a user