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From 6bf178a9a6e3fd6544d8e37a0082febf81c0ad2d Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Tue, 17 Jul 2018 12:23:26 +0200
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Subject: [PATCH] sd-bus: allow connecting to the pseudo-container ".host"
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machined exposes the pseudo-container ".host" as a reference to the host
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system, and this means "machinectl login .host" and "machinectl shell
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.host" get your a login/shell on the host. systemd-run currently doesn't
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allow that. Let's fix that, and make sd-bus understand ".host" as an
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alias for connecting to the host system.
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(cherry picked from commit 1e5057b904473696ae0d591d7555233adcb51fa4)
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Resolves: #1683334
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---
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src/basic/util.c | 5 +++++
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src/libsystemd/sd-bus/sd-bus.c | 4 ++--
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2 files changed, 7 insertions(+), 2 deletions(-)
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diff --git a/src/basic/util.c b/src/basic/util.c
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index 8f2d6061da..82cb937314 100644
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--- a/src/basic/util.c
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+++ b/src/basic/util.c
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@@ -255,6 +255,11 @@ int container_get_leader(const char *machine, pid_t *pid) {
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assert(machine);
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assert(pid);
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+ if (streq(machine, ".host")) {
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+ *pid = 1;
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+ return 0;
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+ }
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+
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if (!machine_name_is_valid(machine))
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return -EINVAL;
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diff --git a/src/libsystemd/sd-bus/sd-bus.c b/src/libsystemd/sd-bus/sd-bus.c
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index 7f03528b89..f53a98d6bf 100644
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--- a/src/libsystemd/sd-bus/sd-bus.c
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+++ b/src/libsystemd/sd-bus/sd-bus.c
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@@ -952,7 +952,7 @@ static int parse_container_unix_address(sd_bus *b, const char **p, char **guid)
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return -EINVAL;
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if (machine) {
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- if (!machine_name_is_valid(machine))
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+ if (!streq(machine, ".host") && !machine_name_is_valid(machine))
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return -EINVAL;
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free_and_replace(b->machine, machine);
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@@ -1450,7 +1450,7 @@ _public_ int sd_bus_open_system_machine(sd_bus **ret, const char *machine) {
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assert_return(machine, -EINVAL);
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assert_return(ret, -EINVAL);
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- assert_return(machine_name_is_valid(machine), -EINVAL);
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+ assert_return(streq(machine, ".host") || machine_name_is_valid(machine), -EINVAL);
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r = sd_bus_new(&b);
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if (r < 0)
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