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path: root/slirp4netns.sh
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* slirp4netns: Add EXIT as condition for trapStefano Brivio2022-02-041-1/+1
| | | | | | | ...otherwise, we don't terminate pasta on regular exit, i.e. on a read from the "exit" file descriptor. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* slirp4netns: Look up pasta command, exit if not foundStefano Brivio2022-02-041-1/+6
| | | | Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* slirp4netns.sh: Fix up usage, exit 0 on --helpStefano Brivio2021-10-211-5/+6
| | | | | | | | | | Based on an original patch by Giuseppe Scrivano: there's no need to pass $0 to usage, drop that everywhere, and make it consistent. Don't exit with error on -h, --help. Suggested-by: Giuseppe Scrivano <gscrivan@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* slirp4netns.sh: Introduce compatibility wrapper behaving like slirp4netns(1)Stefano Brivio2021-10-141-0/+227
Warning: draft quality, not really tested, --enable-sandbox not supported yet. Example: $ unshare -rUn # echo $$ 3130879 $ ./slirp4netns.sh -m 65520 -c 3130879 tap0 sent tapfd=5 for tap0 received tapfd=5 Starting slirp * MTU: 65520 * Network: 10.0.2.0 * Netmask: 255.255.255.0 * Gateway: 10.0.2.2 * DNS: 10.0.2.3 * Recommended IP: 10.0.2.100 WARNING: 127.0.0.1:* on the host is accessible as 10.0.2.2 (set --disable-host-loopback to prohibit connecting to 127.0.0.1:*) # ip li sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 33: tap0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 1000 link/ether 5e:9d:a0:c5:cf:67 brd ff:ff:ff:ff:ff:ff # ip ad sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 33: tap0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc pfifo_fast state UNKNOWN group default qlen 1000 link/ether 5e:9d:a0:c5:cf:67 brd ff:ff:ff:ff:ff:ff inet 10.0.2.0/24 scope global tap0 valid_lft forever preferred_lft forever inet6 fe80::5c9d:a0ff:fec5:cf67/64 scope link valid_lft forever preferred_lft forever # ip ro sh default via 10.0.2.2 dev tap0 10.0.2.0/24 dev tap0 proto kernel scope link src 10.0.2.0 root@epycfail:~# ip -6 ro sh fe80::/64 dev tap0 proto kernel metric 256 pref medium # iperf3 -c 10.0.2.2 -l1M Connecting to host 10.0.2.2, port 5201 [ 5] local 10.0.2.0 port 43014 connected to 10.0.2.2 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 1.38 GBytes 11.8 Gbits/sec 0 9.96 MBytes [ 5] 1.00-2.00 sec 1.59 GBytes 13.6 Gbits/sec 0 13.3 MBytes [ 5] 2.00-3.00 sec 1.63 GBytes 14.0 Gbits/sec 0 13.3 MBytes [ 5] 3.00-4.00 sec 1.78 GBytes 15.3 Gbits/sec 0 13.3 MBytes [ 5] 4.00-5.00 sec 1.80 GBytes 15.5 Gbits/sec 0 15.8 MBytes [ 5] 5.00-6.00 sec 1.69 GBytes 14.5 Gbits/sec 0 15.8 MBytes [ 5] 6.00-7.00 sec 1.65 GBytes 14.2 Gbits/sec 0 15.8 MBytes [ 5] 7.00-8.00 sec 1.68 GBytes 14.4 Gbits/sec 0 15.8 MBytes [ 5] 8.00-9.00 sec 1.60 GBytes 13.7 Gbits/sec 0 15.8 MBytes [ 5] 9.00-10.00 sec 1.66 GBytes 14.3 Gbits/sec 0 15.8 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 16.5 GBytes 14.1 Gbits/sec 0 sender [ 5] 0.00-10.01 sec 16.4 GBytes 14.1 Gbits/sec receiver iperf Done. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>