- dev - passt

[PATCH 0/7] Second batch of fixes reported during Fedora package review
by Stefano Brivio 30 Aug '22

30 Aug '22

This series fixes one issue in passt itself, reported by Daniel from a rpmlint warning, and implements six recommendations in the spec file, also from Daniel. Stefano Brivio (7): util: Drop any supplementary group before dropping privileges fedora: Adopt versioning guideline for snapshots fedora: Drop SPDX identifier from spec file fedora: Drop comment stating the spec file is an example file fedora: Define git_hash in spec file and reuse it fedora: Use full versioning for SELinux subpackage Requires: tag fedora: Pass explicit bindir, mandir, docdir, and drop OpenSUSE override contrib/fedora/passt.spec | 18 +++++++----------- contrib/fedora/rpkg.macros | 7 +++++-- util.c | 2 +- 3 files changed, 13 insertions(+), 14 deletions(-) -- 2.35.1

2 10

[PATCH] contrib: Rebase Podman patch to latest upstream
by Stefano Brivio 29 Aug '22

29 Aug '22

Trivial conflicts in man pages only. Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com> --- ...001-libpod-Add-pasta-networking-mode.patch | 94 +++++++++---------- 1 file changed, 47 insertions(+), 47 deletions(-) diff --git a/contrib/podman/0001-libpod-Add-pasta-networking-mode.patch b/contrib/podman/0001-libpod-Add-pasta-networking-mode.patch index ac82a44..884ebf7 100644 --- a/contrib/podman/0001-libpod-Add-pasta-networking-mode.patch +++ b/contrib/podman/0001-libpod-Add-pasta-networking-mode.patch @@ -1,4 +1,4 @@ -From 27b0bf3a0ad6c57c7713aef1ded8cad6d4cd4d4a Mon Sep 17 00:00:00 2001 +From 9f61d4107f7cce5fb4157e18c67fad9c135d7b9f Mon Sep 17 00:00:00 2001 From: Stefano Brivio <sbrivio(a)redhat.com> Date: Mon, 2 May 2022 16:12:07 +0200 Subject: [PATCH] libpod: Add pasta networking mode @@ -41,25 +41,25 @@ Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com> SPDX-FileCopyrightText: 2021-2022 Red Hat GmbH <sbrivio(a)redhat.com> SPDX-License-Identifier: Apache-2.0 - docs/source/markdown/podman-create.1.md | 48 ++++++++- - docs/source/markdown/podman-pod-create.1.md | 44 ++++++++ - docs/source/markdown/podman-run.1.md | 49 ++++++++- - docs/source/markdown/podman.1.md | 6 +- - libpod/networking_linux.go | 6 +- - libpod/networking_pasta.go | 107 ++++++++++++++++++++ - pkg/namespaces/namespaces.go | 6 ++ - pkg/specgen/generate/namespaces.go | 10 ++ - pkg/specgen/generate/pod_create.go | 6 ++ - pkg/specgen/namespaces.go | 16 ++- - pkg/specgen/podspecgen.go | 2 +- + docs/source/markdown/podman-create.1.md.in | 48 +++++++- + .../source/markdown/podman-pod-create.1.md.in | 44 +++++++ + docs/source/markdown/podman-run.1.md.in | 49 +++++++- + docs/source/markdown/podman.1.md | 6 +- + libpod/networking_linux.go | 6 +- + libpod/networking_pasta.go | 107 ++++++++++++++++++ + pkg/namespaces/namespaces.go | 6 + + pkg/specgen/generate/namespaces.go | 10 ++ + pkg/specgen/generate/pod_create.go | 6 + + pkg/specgen/namespaces.go | 16 ++- + pkg/specgen/podspecgen.go | 2 +- 11 files changed, 286 insertions(+), 14 deletions(-) create mode 100644 libpod/networking_pasta.go -diff --git a/docs/source/markdown/podman-create.1.md b/docs/source/markdown/podman-create.1.md -index b3e707e45..03a754e4c 100644 ---- a/docs/source/markdown/podman-create.1.md -+++ b/docs/source/markdown/podman-create.1.md -@@ -717,10 +717,15 @@ Valid _mode_ values are: +diff --git a/docs/source/markdown/podman-create.1.md.in b/docs/source/markdown/podman-create.1.md.in +index 0a880951d..287dbc4a4 100644 +--- a/docs/source/markdown/podman-create.1.md.in ++++ b/docs/source/markdown/podman-create.1.md.in +@@ -394,10 +394,15 @@ Valid _mode_ values are: - **interface_name**: Specify a name for the created network interface inside the container. For example to set a static ipv4 address and a static mac address, use `--network bridge:ip=10.88.0.10,mac=44:33:22:11:00:99`. @@ -75,7 +75,7 @@ index b3e707e45..03a754e4c 100644 - **ns:**_path_: Path to a network namespace to join. - **private**: Create a new namespace for the container. This will use the **bridge** mode for rootful containers and **slirp4netns** for rootless ones. - **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options, they can also be set with `network_cmd_options` in containers.conf: -@@ -736,6 +741,40 @@ Valid _mode_ values are: +@@ -413,6 +418,40 @@ Valid _mode_ values are: Note: Rootlesskit changes the source IP address of incoming packets to an IP address in the container network namespace, usually `10.0.2.100`. If your application requires the real source IP address, e.g. web server logs, use the slirp4netns port handler. The rootlesskit port handler is also used for rootless containers when connected to user-defined networks. - **port_handler=slirp4netns**: Use the slirp4netns port forwarding, it is slower than rootlesskit but preserves the correct source IP address. This port handler cannot be used for user-defined networks. @@ -113,10 +113,10 @@ index b3e707e45..03a754e4c 100644 + host, using the loopback interface instead of the tap interface for improved + performance + - #### **--network-alias**=*alias* + @@option network-alias - Add a network-scoped alias for the container, setting the alias for all networks that the container joins. To set a -@@ -1595,8 +1634,9 @@ In order for users to run rootless, there must be an entry for their username in + @@option no-healthcheck +@@ -1018,8 +1057,9 @@ In order for users to run rootless, there must be an entry for their username in Rootless Podman works better if the fuse-overlayfs and slirp4netns packages are installed. The fuse-overlayfs package provides a userspace overlay storage driver, otherwise users need to use @@ -128,7 +128,7 @@ index b3e707e45..03a754e4c 100644 ## ENVIRONMENT -@@ -1645,7 +1685,9 @@ page. +@@ -1068,7 +1108,9 @@ page. NOTE: Use the environment variable `TMPDIR` to change the temporary storage location of downloaded container images. Podman defaults to use `/var/tmp`. ## SEE ALSO @@ -139,11 +139,11 @@ index b3e707e45..03a754e4c 100644 ## HISTORY October 2017, converted from Docker documentation to Podman by Dan Walsh for Podman `<dwalsh(a)redhat.com>` -diff --git a/docs/source/markdown/podman-pod-create.1.md b/docs/source/markdown/podman-pod-create.1.md -index 7b63ac51d..03174d1a6 100644 ---- a/docs/source/markdown/podman-pod-create.1.md -+++ b/docs/source/markdown/podman-pod-create.1.md -@@ -263,10 +263,15 @@ Valid _mode_ values are: +diff --git a/docs/source/markdown/podman-pod-create.1.md.in b/docs/source/markdown/podman-pod-create.1.md.in +index 702780c65..609a5aee5 100644 +--- a/docs/source/markdown/podman-pod-create.1.md.in ++++ b/docs/source/markdown/podman-pod-create.1.md.in +@@ -181,10 +181,15 @@ Valid _mode_ values are: - **interface_name**: Specify a name for the created network interface inside the container. For example to set a static ipv4 address and a static mac address, use `--network bridge:ip=10.88.0.10,mac=44:33:22:11:00:99`. @@ -159,7 +159,7 @@ index 7b63ac51d..03174d1a6 100644 - **ns:**_path_: Path to a network namespace to join. - **private**: Create a new namespace for the container. This will use the **bridge** mode for rootful containers and **slirp4netns** for rootless ones. - **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options, they can also be set with `network_cmd_options` in containers.conf: -@@ -282,6 +287,43 @@ Valid _mode_ values are: +@@ -200,6 +205,43 @@ Valid _mode_ values are: Note: Rootlesskit changes the source IP address of incoming packets to an IP address in the container network namespace, usually `10.0.2.100`. If your application requires the real source IP address, e.g. web server logs, use the slirp4netns port handler. The rootlesskit port handler is also used for rootless containers when connected to user-defined networks. - **port_handler=slirp4netns**: Use the slirp4netns port forwarding, it is slower than rootlesskit but preserves the correct source IP address. This port handler cannot be used for user-defined networks. @@ -200,10 +200,10 @@ index 7b63ac51d..03174d1a6 100644 + host, using the loopback interface instead of the tap interface for improved + performance + - #### **--network-alias**=*alias* + @@option network-alias - Add a network-scoped alias for the pod, setting the alias for all networks that the container joins. To set a -@@ -672,6 +714,8 @@ $ podman pod create --network slirp4netns:outbound_addr=127.0.0.1,allow_host_loo + @@option no-hosts +@@ -561,6 +603,8 @@ $ podman pod create --network slirp4netns:outbound_addr=127.0.0.1,allow_host_loo $ podman pod create --network slirp4netns:cidr=192.168.0.0/24 @@ -212,11 +212,11 @@ index 7b63ac51d..03174d1a6 100644 $ podman pod create --network net1:ip=10.89.1.5 --network net2:ip=10.89.10.10 ``` -diff --git a/docs/source/markdown/podman-run.1.md b/docs/source/markdown/podman-run.1.md -index 8c889f0a5..0ad667fc2 100644 ---- a/docs/source/markdown/podman-run.1.md -+++ b/docs/source/markdown/podman-run.1.md -@@ -734,10 +734,15 @@ Valid _mode_ values are: +diff --git a/docs/source/markdown/podman-run.1.md.in b/docs/source/markdown/podman-run.1.md.in +index 6798c65da..06dfa0745 100644 +--- a/docs/source/markdown/podman-run.1.md.in ++++ b/docs/source/markdown/podman-run.1.md.in +@@ -409,10 +409,15 @@ Valid _mode_ values are: - **interface_name**: Specify a name for the created network interface inside the container. For example to set a static ipv4 address and a static mac address, use `--network bridge:ip=10.88.0.10,mac=44:33:22:11:00:99`. @@ -232,7 +232,7 @@ index 8c889f0a5..0ad667fc2 100644 - **ns:**_path_: Path to a network namespace to join. - **private**: Create a new namespace for the container. This will use the **bridge** mode for rootful containers and **slirp4netns** for rootless ones. - **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options, they can also be set with `network_cmd_options` in containers.conf: -@@ -753,6 +758,43 @@ Valid _mode_ values are: +@@ -428,6 +433,43 @@ Valid _mode_ values are: Note: Rootlesskit changes the source IP address of incoming packets to an IP address in the container network namespace, usually `10.0.2.100`. If your application requires the real source IP address, e.g. web server logs, use the slirp4netns port handler. The rootlesskit port handler is also used for rootless containers when connected to user-defined networks. - **port_handler=slirp4netns**: Use the slirp4netns port forwarding, it is slower than rootlesskit but preserves the correct source IP address. This port handler cannot be used for user-defined networks. @@ -273,10 +273,10 @@ index 8c889f0a5..0ad667fc2 100644 + host, using the loopback interface instead of the tap interface for improved + performance + - #### **--network-alias**=*alias* + @@option network-alias - Add a network-scoped alias for the container, setting the alias for all networks that the container joins. To set a -@@ -1967,8 +2009,9 @@ In order for users to run rootless, there must be an entry for their username in + @@option no-healthcheck +@@ -1383,8 +1425,9 @@ In order for users to run rootless, there must be an entry for their username in Rootless Podman works better if the fuse-overlayfs and slirp4netns packages are installed. The **fuse-overlayfs** package provides a userspace overlay storage driver, otherwise users need to use @@ -288,7 +288,7 @@ index 8c889f0a5..0ad667fc2 100644 ## ENVIRONMENT -@@ -2015,7 +2058,7 @@ page. +@@ -1431,7 +1474,7 @@ page. NOTE: Use the environment variable `TMPDIR` to change the temporary storage location of downloaded container images. Podman defaults to use `/var/tmp`. ## SEE ALSO @@ -298,7 +298,7 @@ index 8c889f0a5..0ad667fc2 100644 ## HISTORY September 2018, updated by Kunal Kushwaha `<kushwaha_kunal_v7(a)lab.ntt.co.jp>` diff --git a/docs/source/markdown/podman.1.md b/docs/source/markdown/podman.1.md -index 4c019ae97..4c09d4bee 100644 +index d1192b6d2..a79a56253 100644 --- a/docs/source/markdown/podman.1.md +++ b/docs/source/markdown/podman.1.md @@ -88,7 +88,7 @@ Set libpod namespace. Namespaces are used to separate groups of containers and p @@ -310,7 +310,7 @@ index 4c019ae97..4c09d4bee 100644 #### **--network-config-dir**=*directory* -@@ -415,7 +415,7 @@ See the `subuid(5)` and `subgid(5)` man pages for more information. +@@ -421,7 +421,7 @@ See the `subuid(5)` and `subgid(5)` man pages for more information. Images are pulled under `XDG_DATA_HOME` when specified, otherwise in the home directory of the user under `.local/share/containers/storage`. @@ -319,7 +319,7 @@ index 4c019ae97..4c09d4bee 100644 In certain environments like HPC (High Performance Computing), users cannot take advantage of the additional UIDs and GIDs from the /etc/subuid and /etc/subgid systems. However, in this environment, rootless Podman can operate with a single UID. To make this work, set the `ignore_chown_errors` option in the /etc/containers/storage.conf or in ~/.config/containers/storage.conf files. This option tells Podman when pulling an image to ignore chown errors when attempting to change a file in a container image to match the non-root UID in the image. This means all files get saved as the user's UID. Note this could cause issues when running the container. -@@ -428,7 +428,7 @@ The Network File System (NFS) and other distributed file systems (for example: L +@@ -434,7 +434,7 @@ The Network File System (NFS) and other distributed file systems (for example: L For more information, please refer to the [Podman Troubleshooting Page](https://github.com/containers/podman/blob/main/troubleshooting.md). ## SEE ALSO @@ -329,7 +329,7 @@ index 4c019ae97..4c09d4bee 100644 ## HISTORY Dec 2016, Originally compiled by Dan Walsh <dwalsh(a)redhat.com> diff --git a/libpod/networking_linux.go b/libpod/networking_linux.go -index c05796768..5c1f0ea35 100644 +index c10c3c0b2..0f0c1213c 100644 --- a/libpod/networking_linux.go +++ b/libpod/networking_linux.go @@ -640,6 +640,9 @@ func (r *Runtime) configureNetNS(ctr *Container, ctrNS ns.NetNS) (status map[str @@ -511,10 +511,10 @@ index f0d4e9153..2c4b40509 100644 portMappings, expose, err := createPortMappings(s, imageData) if err != nil { diff --git a/pkg/specgen/generate/pod_create.go b/pkg/specgen/generate/pod_create.go -index 4e6362c9b..fa8a01c84 100644 +index d6063b9a0..be94fb251 100644 --- a/pkg/specgen/generate/pod_create.go +++ b/pkg/specgen/generate/pod_create.go -@@ -200,6 +200,12 @@ func MapSpec(p *specgen.PodSpecGenerator) (*specgen.SpecGenerator, error) { +@@ -201,6 +201,12 @@ func MapSpec(p *specgen.PodSpecGenerator) (*specgen.SpecGenerator, error) { p.InfraContainerSpec.NetworkOptions = p.NetworkOptions p.InfraContainerSpec.NetNS.NSMode = specgen.Slirp } -- 2.35.1

1 0

[PATCH 0/3] Miscellaneous small fixes
by David Gibson 24 Aug '22

24 Aug '22

Here's a handful of small fixes for passt I came across while working on other things. David Gibson (3): conf: Fix incorrect bounds checking for sock_path parameter gitignore README.plain.md Don't unnecessarily avoid CLOEXEC flags .gitignore | 1 + conf.c | 12 ++++-------- passt.c | 6 ++---- pasta.c | 2 +- 4 files changed, 8 insertions(+), 13 deletions(-) -- 2.37.2

2 5

[PATCH 00/10] passt test fixes, batch 6
by David Gibson 21 Aug '22

21 Aug '22

Here's get another batch of fixes and cleanups for passt/pasta tests. Some of these are preliminary fixes before an upcoming series changing to use more reliable (less tmux screen-scraping dependent) methods for dispatching commands in various contexts. Others are just miscellaneous fixes. David Gibson (10): test: Convert distro tests to use socat instead of nc/ncat test: Split cppcheck and clang-tidy tests into different files test: Remove unused *_XTERM variables test: Ignore video processing temporary files test: Split setup/teardown functions for build and distro tests test: Only select a single interface or gateway in tests test: Rename slightly misleading "valgrind" tests test: Use shutdown test for pasta test: Log debugging output from test script test: Kill qemu by pidfile rather than ^C test/.gitignore | 4 ++ test/build/{static_checkers => clang_tidy} | 5 +-- test/build/cppcheck | 17 ++++++++ test/dhcp/passt | 4 +- test/dhcp/pasta | 4 +- test/distro/debian | 28 ++++++------- test/distro/fedora | 48 +++++++++++----------- test/distro/opensuse | 18 ++++---- test/distro/ubuntu | 16 ++++---- test/lib/setup | 41 ++++++++++++------ test/lib/term | 4 -- test/ndp/passt | 4 +- test/ndp/pasta | 2 +- test/run | 15 +++++-- test/{valgrind => shutdown}/passt | 9 ++-- test/{valgrind => shutdown}/passt_in_ns | 9 ++-- 16 files changed, 134 insertions(+), 94 deletions(-) rename test/build/{static_checkers => clang_tidy} (86%) create mode 100644 test/build/cppcheck rename test/{valgrind => shutdown}/passt (62%) rename test/{valgrind => shutdown}/passt_in_ns (62%) -- 2.37.2

2 11

[PATCH 00/12] Updates and fixes for documentation and Fedora package
by Stefano Brivio 18 Aug '22

18 Aug '22

This series introduces a rewrite of the doc/demo.sh script for passt and pasta, which was entirely outdated, some changes to make packaging easier, and a number of fixes to the Fedora spec file template. Most issues addressed here were reported by Fedora package reviewers at: https://bugzilla.redhat.com/show_bug.cgi?id=2106611 Stefano Brivio (12): doc: Rewrite demo script README: Add link to Copr repositories Makefile: Ugly hack to get a "plain" Markdown version of README Makefile: Install demo.sh too, uninstall stuff under /usr/share fedora: Install "plain" README, instead of web version, and demo script fedora: Introduce own rpkg macro for changelog fedora: Start Release tag from 1, not 0 fedora: Drop VCS tag from spec file fedora: Change source URL to HEAD link with explicit commit SHA fedora: Build SELinux subpackage as noarch fedora: Don't hardcode CFLAGS setting, use %set_build_flags macro instead fedora: Fix man pages wildcards in spec file Makefile | 34 +++- README.md | 37 ++-- contrib/fedora/passt.spec | 26 +-- contrib/fedora/rpkg.macros | 38 +++++ doc/demo.sh | 340 +++++++++++++++++++++++++------------ 5 files changed, 334 insertions(+), 141 deletions(-) -- 2.35.1

1 12

[PATCH] Makefile: Ugly hack to get a "plain" Markdown version of README
by Stefano Brivio 10 Aug '22

10 Aug '22

Distribution packages reasonably expect to have a human-readable Markdown version of the README under /usr/share/doc/, but all we have right now is a heavily web-oriented version. Introduce a ugly hack to strip web-oriented parts from the current README and install it. It should probably work the other way around: a human-readable README could be used as a source for the web page. But cgit needs a file that's in the tree, not something that can be built, and https://passt.top/ is based on cgit. It should eventually be doable to work around this in cgit, instead. Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com> --- Makefile | 30 +++++++++++++++++++++++++++--- 1 file changed, 27 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 0de872e..f03d117 100644 --- a/Makefile +++ b/Makefile @@ -90,7 +90,7 @@ else BIN := passt pasta qrap endif -all: $(BIN) $(MANPAGES) +all: $(BIN) $(MANPAGES) docs static: CFLAGS += -static -DGLIBC_NO_STATIC_NSS static: clean all @@ -123,12 +123,14 @@ valgrind: all clean: $(RM) $(BIN) *.o seccomp.h pasta.1 \ passt.tar passt.tar.gz *.deb *.rpm \ - passt.pid + passt.pid README.plain.md -install: $(BIN) $(MANPAGES) +install: $(BIN) $(MANPAGES) docs mkdir -p $(DESTDIR)$(prefix)/bin $(DESTDIR)$(prefix)/share/man/man1 cp -d $(BIN) $(DESTDIR)$(prefix)/bin cp -d $(MANPAGES) $(DESTDIR)$(prefix)/share/man/man1 + mkdir -p $(DESTDIR)$(prefix)/share/doc/passt + cp -d README.plain.md $(DESTDIR)$(prefix)/share/doc/passt/README.md uninstall: $(RM) $(BIN:%=$(DESTDIR)$(prefix)/bin/%) @@ -147,6 +149,28 @@ pkgs: static --description="User-mode networking for VMs and namespaces" \ -k --version=g$(shell git rev-parse --short HEAD) passt.tar.gz +# TODO: This hack makes a "plain" Markdown version of README.md that can be +# reasonably shipped as documentation file, while the current README.md is +# definitely intended for web browser consumption. It should probably work the +# other way around: the web version should be obtained by adding HTML and +# JavaScript portions to a plain Markdown, instead. However, cgit needs to use +# a file in the git tree. Find a better way around this. +docs: README.md + @( \ + skip=0; \ + while read l; do \ + case $$l in \ + "## Demo") exit 0 ;; \ + "<!"*) ;; \ + "</"*) skip=1 ;; \ + "<"*) skip=2 ;; \ + esac; \ + \ + [ $$skip -eq 0 ] && echo "$$l"; \ + [ $$skip -eq 1 ] && skip=0; \ + done < README.md; \ + ) > README.plain.md + # Checkers currently disabled for clang-tidy: # - llvmlibc-restrict-system-libc-headers # TODO: this is Linux-only for the moment, nice to fix eventually -- 2.35.1

1 0

[PATCH] README: Add link to Copr repositories
by Stefano Brivio 10 Aug '22

10 Aug '22

These have packages covering all recent versions of CentOS Stream, EPEL, Fedora, Mageia and OpenSUSE Tumbleweed. Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com> --- README.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/README.md b/README.md index 2cd40c7..2d7ae3c 100644 --- a/README.md +++ b/README.md @@ -537,6 +537,10 @@ See also the [test logs](/builds/latest/test/). make pkgs + * or use one of the unofficial + [repositories](https://copr.fedorainfracloud.org/coprs/sbrivio/passt/) for + CentOS Stream, EPEL, Fedora, Mageia and OpenSUSE Tumbleweed + * have a look at the _man_ page for synopsis and options: man ./passt.1 @@ -581,6 +585,10 @@ See also the [test logs](/builds/latest/test/). make pkgs + * or use one of the unofficial + [repositories](https://copr.fedorainfracloud.org/coprs/sbrivio/passt/) for + CentOS Stream, EPEL, Fedora, Mageia and OpenSUSE Tumbleweed + * have a look at the _man_ page for synopsis and options: man ./pasta.1 -- 2.35.1

1 0

[PATCH] doc: Rewrite demo script
by Stefano Brivio 10 Aug '22

10 Aug '22

The original demo script was written when pasta wasn't a thing yet, so it needed to run as root, set up a veth pair, and configure addresses and routes by itself. Now pasta can do all that for us, and become part of the demo as well. Further, extend it to start qemu, optionally preparing a basic demo image with mbuto (https://mbuto.sh), and execute one logical step at a time, for clarity. Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com> --- README.md | 29 ++--- doc/demo.sh | 340 +++++++++++++++++++++++++++++++++++----------------- 2 files changed, 244 insertions(+), 125 deletions(-) diff --git a/README.md b/README.md index 628b9bb..2cd40c7 100644 --- a/README.md +++ b/README.md @@ -541,25 +541,11 @@ See also the [test logs](/builds/latest/test/). man ./passt.1 -* run the demo script, that creates a network namespace called `passt`, sets up - sets up a _veth_ pair and and addresses, together with NAT for IPv4 and NDP - proxying for IPv6, then starts _passt_ in the network namespace: +* run the demo script, that detaches user and network namespaces, configures the + new network namespace using `pasta`, starts `passt` and, optionally, `qemu`: doc/demo.sh -* from the same network namespace, start qemu. At the moment, qemu doesn't - support UNIX domain sockets for the `socket` back-end. Two alternatives: - - * use the _qrap_ wrapper, which maps a tap socket descriptor to _passt_'s - UNIX domain socket, for example: - - ip netns exec passt ./qrap 5 qemu-system-x86_64 ... -net socket,fd=5 -net nic,model=virtio ... - - * or patch qemu with [this patch](/passt/tree/qemu/0001-net-Allow-also-UNIX-domain-sockets-to-be-used-as-net.patch) - and start it like this: - - qemu-system-x86_64 ... -net socket,connect=/tmp/passt.socket -net nic,model=virtio - * alternatively, you can use libvirt, with [this patch](/passt/tree/libvirt/0001-conf-Introduce-support-for-UNIX-domain-socket-as-qem.patch), to start qemu (with the patch mentioned above), with this kind of network interface configuration: @@ -613,6 +599,17 @@ See also the [test logs](/builds/latest/test/). dhclient -6 + * alternatively, start pasta as: + + ./pasta --config-net + + to let pasta configure networking in the namespace by itself, using + `netlink` + + * ...or run the demo script: + + doc/demo.sh + * and that's it, you should now have TCP connections, UDP, and ICMP/ICMPv6 echo working from/to the namespace for IPv4 and IPv6 diff --git a/doc/demo.sh b/doc/demo.sh index f49110a..d39a10e 100755 --- a/doc/demo.sh +++ b/doc/demo.sh @@ -4,122 +4,244 @@ # # PASST - Plug A Simple Socket Transport # -# demo.sh - Set up namespaces, addresses and routes to show PASST functionality +# demo.sh - Set up namespace with pasta, start qemu and passt, step by step # -# Copyright (c) 2020-2021 Red Hat GmbH +# Copyright (c) 2020-2022 Red Hat GmbH # Author: Stefano Brivio <sbrivio(a)redhat.com> -get_token() { - IFS=' ' - __next=0 - for __token in ${@}; do - [ ${__next} -eq 2 ] && echo "${__token}" && return - [ "${__token}" = "${1}" ] && __next=$((__next + 1)) - done - unset IFS +# mbuto_profile() - Profile for https://mbuto.sh/, sourced, return after setting +mbuto_profile() { + PROGS="${PROGS:-ash,dash,bash ip mount ls ln chmod insmod mkdir sleep + lsmod modprobe find grep mknod mv rm umount iperf3 dhclient cat + hostname chown socat dd strace ping killall sysctl wget,curl}" + + KMODS="${KMODS:- virtio_net virtio_pci}" + + LINKS="${LINKS:- + ash,dash,bash /init + ash,dash,bash /bin/sh}" + + DIRS="${DIRS} /tmp /sbin /var/log /var/run /var/lib" + + # shellcheck disable=SC2016 + FIXUP="${FIXUP}"' + cat > /sbin/dhclient-script << EOF +#!/bin/sh + +[ -n "\${new_interface_mtu}" ] && ip link set dev \${interface} mtu \${new_interface_mtu} + +[ -n "\${new_ip_address}" ] && ip addr add \${new_ip_address}/\${new_subnet_mask} dev \${interface} +[ -n "\${new_routers}" ] && for r in \${new_routers}; do ip route add default via \${r} dev \${interface}; done +[ -n "\${new_domain_name_servers}" ] && for d in \${new_domain_name_servers}; do echo "nameserver \${d}" >> /etc/resolv.conf; done +[ -n "\${new_domain_name}" ] && echo "search \${new_domain_name}" >> /etc/resolf.conf +[ -n "\${new_domain_search}" ] && (printf "search"; for d in \${new_domain_search}; do printf " %s" "\${d}"; done; printf "\n") >> /etc/resolv.conf +[ -n "\${new_ip6_address}" ] && ip addr add \${new_ip6_address}/\${new_ip6_prefixlen} dev \${interface} +[ -n "\${new_dhcp6_name_servers}" ] && for d in \${new_dhcp6_name_servers}; do echo "nameserver \${d}%\${interface}" >> /etc/resolv.conf; done +[ -n "\${new_dhcp6_domain_search}" ] && (printf "search"; for d in \${new_dhcp6_domain_search}; do printf " %s" "\${d}"; done; printf "\n") >> /etc/resolv.conf +[ -n "\${new_host_name}" ] && hostname "\${new_host_name}" +exit 0 +EOF + + chmod 755 /sbin/dhclient-script + + mkdir -p /etc/dhcp + echo "timeout 3;" > /etc/dhcp/dhclient.conf + + ln -s /sbin /usr/sbin + :> /etc/fstab + + echo + echo "The guest is up and running. Networking is not configured yet:" + echo + echo "$ ip address show" + echo + ip address show + echo + echo "...the next step will take care of that." + read x + + echo "$ ip link set dev eth0 up" + ip link set dev eth0 up + sleep 3 + echo "$ /sbin/dhclient -4 -1" + /sbin/dhclient -4 -1 + sleep 2 + echo "$ /sbin/dhclient -6 -1" + /sbin/dhclient -6 -1 + sleep 2 + echo + echo "$ ip address show" + ip address show + echo + echo "$ ip route show" + ip route show + echo + echo "...done." + read x + + echo "Checking connectivity..." + echo + echo "$ wget --no-check-certificate https://passt.top/ || curl -k https://passt.top/" + wget --no-check-certificate https://passt.top/ || curl -k https://passt.top/ + echo "...done." + read x + + echo "An interactive shell will start now. When you are done," + echo "use ^C to terminate the guest and exit the demo." + echo + + sh +m +' } -ipv6_dev() { get_token "dev" $(ip -o -6 route show default | grep via); } -ipv6_devaddr() { get_token "inet6" $(ip -o -6 addr show dev "${1}" scope global); } -ipv6_ll_addr() { get_token "inet6" $(ip -o -6 addr show dev "${1}" scope link); } -ipv6_mask() { echo ${1#*/}; } -ipv6_mangle() { - IFS=':' - __c=0 - for __16b in ${1%%/*}; do - if [ ${__c} -lt 7 ]; then - printf "${__16b}:" - else - printf "%04x\n" $((0xabc0 + ${2})) && break - fi - __c=$((__c + 1)) - done - unset IFS +[ "${0##*/}" = "mbuto" ] && mbuto_profile && return 0 + +# cmd() - Show command being executed, then run it +# $@: Command and arguments +cmd() { + echo "$" "$@" + "$@" +} + +# next() - Go to next step once a key is pressed, sets $KEY +next() { + KEY="$(dd ibs=1 count=1 2>/dev/null)" + echo } -ndp_setup() { - sysctl -w net.ipv6.conf.all.proxy_ndp=1 - ip -6 neigh add proxy "${1}" dev "$(ipv6_dev)" +# cleanup() - Terminate pasta and passt, clean up, restore TTY settings +cleanup() { + [ -f "${DEMO_DIR}/pasta.pid" ] && kill "$(cat "${DEMO_DIR}/pasta.pid")" + [ -f "${DEMO_DIR}/passt.pid" ] && kill "$(cat "${DEMO_DIR}/passt.pid")" + rm -rf "${DEMO_DIR}" 2>/dev/null + [ -n "${STTY_BACKUP}" ] && stty "${STTY_BACKUP}" +} + +# start_pasta_delayed() - Start pasta once $DEMO_DIR/pasta.wait is gone +start_pasta_delayed() { + trap '' EXIT + while [ -d "${DEMO_DIR}/pasta.wait" ]; do sleep 1; done + cmd pasta --config-net -P "${DEMO_DIR}/pasta.pid" \ + "$(cat "${DEMO_DIR}/shell.pid")" + echo + echo "...pasta is running." + exit 0 +} - for i in `seq 1 63`; do - __neigh="$(ipv6_mangle ${1} ${i})" - if [ "${__neigh}" != "${1}" ]; then - ip -6 neigh add proxy "${__neigh}" dev "${2}" - fi - done +# into_ns() - Entry point and demo script to run inside new namespace +into_ns() { + echo "We're in the new namespace now." + next + + echo "Networking is not configured yet:" + echo + cmd ip link show + echo + cmd ip address show + next + + echo "Let's run pasta(1) to configure networking and connect this" + echo "namespace. Note that we'll run pasta(1) from outside this" + echo "namespace, because it needs to implement the connection between" + echo "this namespace and the initial (\"outer\") one." + next + + echo "$$" > "${DEMO_DIR}/shell.pid" + rmdir "${DEMO_DIR}/pasta.wait" + next + + echo "Back to the new namespace, networking is configured:" + echo + cmd ip link show + echo + cmd ip address show + next + + echo "and we can now start passt(1), to connect this namespace to a" + echo "virtual machine. If you want to start a shell in this namespace," + echo "press 's' now. Exiting the shell will resume the script." + next + [ "${KEY}" = "s" ] && ${SHELL} + + cmd passt -P "${DEMO_DIR}/passt.pid" + echo + echo "...passt is running." + next + + __arch="$(uname -m)" + case ${__arch} in + x86_64) + __arch_supported=1 + __qemu_arch="qemu-system-x86_64 -M pc,accel=kvm:tcg" + ;; + *) + __arch_supported=0 + ;; + esac + + if [ "${__arch_supported}" -eq 1 ]; then + echo "We're ready to start a virtual machine now. This script" + echo "can download and use mbuto (https://mbuto.sh/) to build a" + echo "basic initramfs image. Otherwise, press 's' to skip this" + echo "step, and start an existing virtual machine yourself." + echo "You'll need to use the qrap(1) wrapper, with qemu options" + echo "as reported above." + + next + else + echo "This script doesn't know, yet, how to run a virtual" + echo "machine on your architecture (${__arch}). Please start an" + echo "existing virtual machine yourself, using the qrap(1)" + echo "wrapper, with qemu options as reported above." + echo + fi + + if [ "${__arch_supported}" -eq 0 ] || [ "${KEY}" = "s" ]; then + echo "Start a virtual machine now. Pressing any key here will" + echo "terminate passt and pasta, and clean up." + next + + exit 0 + fi + + cmd git -C "${DEMO_DIR}" clone git://mbuto.sh/mbuto + echo + cmd "${DEMO_DIR}/mbuto/mbuto" \ + -p "$(realpath "${0}")" -f "${DEMO_DIR}/demo.img" + echo + echo "The guest image is ready. The next step will start the guest." + echo "Use ^C to terminate it." + next + + cmd qrap 5 qemu-system-x86_64 -M pc,accel=kvm:tcg \ + -smp "$(nproc)" -m 1024 \ + -nographic -serial stdio -nodefaults -no-reboot -vga none \ + -initrd "${DEMO_DIR}/demo.img" \ + -kernel "/boot/vmlinuz-$(uname -r)" -append "console=ttyS0" \ + -net socket,fd=5 -net nic,model=virtio || : } -ns_idx=0 -for i in `seq 1 63`; do - ns="passt_${i}" - ns_idx=${i} - - busy=0 - for p in $(pidof passt); do - [ "$(ip netns identify ${p})" = "${ns}" ] && busy=1 && break - done - [ ${busy} -eq 0 ] && break -done - -[ ${busy} -ne 0 ] && echo "Couldn't create namespace" && exit 1 - -ip netns del "${ns}" 2>/dev/null || : -ip netns add "${ns}" -ip link del "veth_${ns}" 2>/dev/null || : -ip link add "veth_${ns}" up netns "${ns}" type veth peer name "veth_${ns}" -ip link set dev "veth_${ns}" up -ip link set dev "veth_${ns}" mtu 65535 -ip -n "${ns}" link set dev "veth_${ns}" mtu 65535 -ip -n "${ns}" link set dev lo up - -ipv4_main="192.0.2.$(((ns_idx - 1) * 4 + 1))" -ipv4_ns="192.0.2.$(((ns_idx - 1) * 4 + 2))" - -ip -n "${ns}" addr add "${ipv4_ns}/30" dev "veth_${ns}" -ip addr add "${ipv4_main}/30" dev "veth_${ns}" -ip -n "${ns}" route add default via "${ipv4_main}" - -sysctl -w net.ipv4.ip_forward=1 -nft delete table "${ns}_nat" 2>/dev/null || : -nft add table "${ns}_nat" -nft add chain "${ns}_nat" postrouting '{ type nat hook postrouting priority -100 ; }' -nft add rule "${ns}_nat" postrouting ip saddr "${ipv4_ns}" masquerade - -ipv6_addr="$(ipv6_devaddr "$(ipv6_dev)")" -if [ -n "${ipv6_addr}" ]; then - ipv6_passt="$(ipv6_mangle "${ipv6_addr}" ${ns_idx})" - ndp_setup "${ipv6_passt}" "veth_${ns}" - ip -n "${ns}" addr add "${ipv6_passt}/$(ipv6_mask "${ipv6_addr}")" dev "veth_${ns}" - ip addr add "${ipv6_addr}" dev "veth_${ns}" - ip route add "${ipv6_passt}" dev "veth_${ns}" - passt_ll="$(ipv6_ll_addr "veth_${ns}")" - main_ll="$(get_token "link/ether" $(ip -o link show "veth_${ns}"))" - ip neigh add "${passt_ll%%/*}" dev "veth_${ns}" lladdr "${main_ll}" - ip -n "${ns}" route add default via "${passt_ll%%/*}" dev "veth_${ns}" - - sysctl -w net.ipv6.conf.all.forwarding=1 -else - ipv6_passt= -fi - -ethtool -K "veth_${ns}" tx off -ip netns exec "${ns}" ethtool -K "veth_${ns}" tx off -ip netns exec "${ns}" sysctl -w net.ipv4.ping_group_range="0 2147483647" - - -sysctl -w net.core.rmem_max=16777216 -sysctl -w net.core.wmem_max=16777216 -sysctl -w net.core.rmem_default=16777216 -sysctl -w net.core.wmem_default=16777216 -sysctl -w net.ipv4.tcp_rmem="16777216 131072 16777216" -sysctl -w net.ipv4.tcp_wmem="16777216 131072 16777216" - -echo -echo "Namespace ${ns} set up, addresses:" -echo " ${ipv4_ns}" -echo " ${ipv6_passt}" -echo -echo "Starting passt..." -echo - -ip netns exec "${ns}" ./passt -f -e -t all -u all +STTY_BACKUP="$(stty -g)" +stty -icanon + +trap cleanup EXIT INT +[ "${1}" = "into_ns" ] && into_ns && exit 0 + +DEMO_DIR="$(mktemp -d)" +mkdir "${DEMO_DIR}/pasta.wait" + +echo "This script sets up a network and user namespace using pasta(1), then" +echo "starts a virtual machine in it, connected via passt(1), pausing at every" +echo "step. Press any key to go to the next step." +next + +echo "Let's create the network and user namespace, first. This could be done" +echo "with pasta(1) itself (just issue \`pasta\`), but for the sake of this" +echo "script we'll create it first with unshare(1), and run the next steps" +echo "of this script from there." +next + +start_pasta_delayed & +DEMO_DIR="${DEMO_DIR}" cmd unshare -rUn "${0}" into_ns + +exit 0 -- 2.35.1

1 0

[PATCH] contrib, test: Rebase Podman patch, enable three-way merge on git am in demo
by Stefano Brivio 01 Aug '22

01 Aug '22

Given that a three-way git merge was enough to cope with context changes in man pages, it's probably a good idea to enable that for 'git am' in the demo too. Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com> --- ...001-libpod-Add-pasta-networking-mode.patch | 32 +++++++++---------- test/demo/podman | 2 +- 2 files changed, 17 insertions(+), 17 deletions(-) diff --git a/contrib/podman/0001-libpod-Add-pasta-networking-mode.patch b/contrib/podman/0001-libpod-Add-pasta-networking-mode.patch index cb1bab9..ac82a44 100644 --- a/contrib/podman/0001-libpod-Add-pasta-networking-mode.patch +++ b/contrib/podman/0001-libpod-Add-pasta-networking-mode.patch @@ -1,4 +1,4 @@ -From 3aa86f0fd0d420c11d328c673e8162300172925a Mon Sep 17 00:00:00 2001 +From 27b0bf3a0ad6c57c7713aef1ded8cad6d4cd4d4a Mon Sep 17 00:00:00 2001 From: Stefano Brivio <sbrivio(a)redhat.com> Date: Mon, 2 May 2022 16:12:07 +0200 Subject: [PATCH] libpod: Add pasta networking mode @@ -56,7 +56,7 @@ SPDX-License-Identifier: Apache-2.0 create mode 100644 libpod/networking_pasta.go diff --git a/docs/source/markdown/podman-create.1.md b/docs/source/markdown/podman-create.1.md -index 67bb573e2..3b96de4d7 100644 +index b3e707e45..03a754e4c 100644 --- a/docs/source/markdown/podman-create.1.md +++ b/docs/source/markdown/podman-create.1.md @@ -717,10 +717,15 @@ Valid _mode_ values are: @@ -115,8 +115,8 @@ index 67bb573e2..3b96de4d7 100644 + #### **--network-alias**=*alias* - Add a network-scoped alias for the container, setting the alias for all networks that the container joins. To set a name only for a specific network, use the alias option as described under the **--network** option. -@@ -1592,8 +1631,9 @@ In order for users to run rootless, there must be an entry for their username in + Add a network-scoped alias for the container, setting the alias for all networks that the container joins. To set a +@@ -1595,8 +1634,9 @@ In order for users to run rootless, there must be an entry for their username in Rootless Podman works better if the fuse-overlayfs and slirp4netns packages are installed. The fuse-overlayfs package provides a userspace overlay storage driver, otherwise users need to use @@ -128,7 +128,7 @@ index 67bb573e2..3b96de4d7 100644 ## ENVIRONMENT -@@ -1642,7 +1682,9 @@ page. +@@ -1645,7 +1685,9 @@ page. NOTE: Use the environment variable `TMPDIR` to change the temporary storage location of downloaded container images. Podman defaults to use `/var/tmp`. ## SEE ALSO @@ -140,10 +140,10 @@ index 67bb573e2..3b96de4d7 100644 ## HISTORY October 2017, converted from Docker documentation to Podman by Dan Walsh for Podman `<dwalsh(a)redhat.com>` diff --git a/docs/source/markdown/podman-pod-create.1.md b/docs/source/markdown/podman-pod-create.1.md -index de9a34bfa..e711d6823 100644 +index 7b63ac51d..03174d1a6 100644 --- a/docs/source/markdown/podman-pod-create.1.md +++ b/docs/source/markdown/podman-pod-create.1.md -@@ -193,10 +193,15 @@ Valid _mode_ values are: +@@ -263,10 +263,15 @@ Valid _mode_ values are: - **interface_name**: Specify a name for the created network interface inside the container. For example to set a static ipv4 address and a static mac address, use `--network bridge:ip=10.88.0.10,mac=44:33:22:11:00:99`. @@ -159,7 +159,7 @@ index de9a34bfa..e711d6823 100644 - **ns:**_path_: Path to a network namespace to join. - **private**: Create a new namespace for the container. This will use the **bridge** mode for rootful containers and **slirp4netns** for rootless ones. - **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options, they can also be set with `network_cmd_options` in containers.conf: -@@ -212,6 +217,43 @@ Valid _mode_ values are: +@@ -282,6 +287,43 @@ Valid _mode_ values are: Note: Rootlesskit changes the source IP address of incoming packets to an IP address in the container network namespace, usually `10.0.2.100`. If your application requires the real source IP address, e.g. web server logs, use the slirp4netns port handler. The rootlesskit port handler is also used for rootless containers when connected to user-defined networks. - **port_handler=slirp4netns**: Use the slirp4netns port forwarding, it is slower than rootlesskit but preserves the correct source IP address. This port handler cannot be used for user-defined networks. @@ -202,8 +202,8 @@ index de9a34bfa..e711d6823 100644 + #### **--network-alias**=*alias* - Add a network-scoped alias for the pod, setting the alias for all networks that the pod joins. To set a name only for a specific network, use the alias option as described under the **--network** option. -@@ -599,6 +641,8 @@ $ podman pod create --network slirp4netns:outbound_addr=127.0.0.1,allow_host_loo + Add a network-scoped alias for the pod, setting the alias for all networks that the container joins. To set a +@@ -672,6 +714,8 @@ $ podman pod create --network slirp4netns:outbound_addr=127.0.0.1,allow_host_loo $ podman pod create --network slirp4netns:cidr=192.168.0.0/24 @@ -213,7 +213,7 @@ index de9a34bfa..e711d6823 100644 ``` diff --git a/docs/source/markdown/podman-run.1.md b/docs/source/markdown/podman-run.1.md -index 4566a73d0..8f8b5b4c1 100644 +index 8c889f0a5..0ad667fc2 100644 --- a/docs/source/markdown/podman-run.1.md +++ b/docs/source/markdown/podman-run.1.md @@ -734,10 +734,15 @@ Valid _mode_ values are: @@ -275,8 +275,8 @@ index 4566a73d0..8f8b5b4c1 100644 + #### **--network-alias**=*alias* - Add a network-scoped alias for the container, setting the alias for all networks that the container joins. To set a name only for a specific network, use the alias option as described under the **--network** option. -@@ -1964,8 +2006,9 @@ In order for users to run rootless, there must be an entry for their username in + Add a network-scoped alias for the container, setting the alias for all networks that the container joins. To set a +@@ -1967,8 +2009,9 @@ In order for users to run rootless, there must be an entry for their username in Rootless Podman works better if the fuse-overlayfs and slirp4netns packages are installed. The **fuse-overlayfs** package provides a userspace overlay storage driver, otherwise users need to use @@ -288,7 +288,7 @@ index 4566a73d0..8f8b5b4c1 100644 ## ENVIRONMENT -@@ -2012,7 +2055,7 @@ page. +@@ -2015,7 +2058,7 @@ page. NOTE: Use the environment variable `TMPDIR` to change the temporary storage location of downloaded container images. Podman defaults to use `/var/tmp`. ## SEE ALSO @@ -511,10 +511,10 @@ index f0d4e9153..2c4b40509 100644 portMappings, expose, err := createPortMappings(s, imageData) if err != nil { diff --git a/pkg/specgen/generate/pod_create.go b/pkg/specgen/generate/pod_create.go -index 212d613fe..b50fe3586 100644 +index 4e6362c9b..fa8a01c84 100644 --- a/pkg/specgen/generate/pod_create.go +++ b/pkg/specgen/generate/pod_create.go -@@ -163,6 +163,12 @@ func MapSpec(p *specgen.PodSpecGenerator) (*specgen.SpecGenerator, error) { +@@ -200,6 +200,12 @@ func MapSpec(p *specgen.PodSpecGenerator) (*specgen.SpecGenerator, error) { p.InfraContainerSpec.NetworkOptions = p.NetworkOptions p.InfraContainerSpec.NetNS.NSMode = specgen.Slirp } diff --git a/test/demo/podman b/test/demo/podman index 100adc1..f3411d8 100644 --- a/test/demo/podman +++ b/test/demo/podman @@ -32,7 +32,7 @@ say , patch it sleep 1 host cp ../contrib/podman/0001-libpod-Add-pasta-networking-mode.patch __TEMPDIR__/podman host cd __TEMPDIR__/podman -host git am 0001-libpod-Add-pasta-networking-mode.patch +host git am -3 0001-libpod-Add-pasta-networking-mode.patch sleep 1 say , and build it. -- 2.35.1

1 0

[PATCH 0/7] Improved selection of external interface and IP configuration
by David Gibson 01 Aug '22

01 Aug '22

The current semantics for selecting an external interface are quite confusing - depending on details it can pick either the interface associated with the first default route, or the lowest numbered interface with a default route, which might not be the same.The logic for checking the interface in the tests isn't quite identical which can lead to test failures when there are multiple external routes. This series fixes that bug and makes a number of follow on clean ups to the detection / configuration of IP parameters from the host. David Gibson (7): Allow different external interfaces for IPv4 and IPv6 connectivity Separately locate external interfaces for IPv4 and IPv6 Initialize host side MAC when in IPv6 only mode Move passt mac_guest init to be more symmetric with pasta Clarify semantics of c->v4 and c->v6 variables Separate IPv4 and IPv6 configuration Make substructures for IPv4 and IPv6 specific context information arp.c | 2 +- conf.c | 326 ++++++++++++++++++++++-------------------- dhcp.c | 22 +-- dhcpv6.c | 18 +-- ndp.c | 16 +-- netlink.c | 79 +--------- netlink.h | 2 +- passt.c | 6 +- passt.h | 78 +++++----- pasta.c | 14 +- tap.c | 32 +++-- tcp.c | 56 ++++---- test/dhcp/passt | 3 +- test/dhcp/pasta | 3 +- test/ndp/passt | 4 +- test/two_guests/basic | 3 +- udp.c | 70 ++++----- util.c | 6 +- util.h | 6 - 19 files changed, 357 insertions(+), 389 deletions(-) -- 2.37.1

2 10