From: David Gibson <david@gibson.dropbear.id.au>
To: passt-dev@passt.top
Subject: [PATCH v3 08/10] Correctly handle --netns-only in pasta_start_ns()
Date: Mon, 12 Sep 2022 22:24:06 +1000 [thread overview]
Message-ID: <20220912122408.1372372-9-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20220912122408.1372372-1-david@gibson.dropbear.id.au>
[-- Attachment #1: Type: text/plain, Size: 873 bytes --]
--netns-only is supposed to make pasta use only a network namespace, not
a user namespace. However, pasta_start_ns() has this backwards, and if
--netns-only is specified it creates a user namespace but *not* a network
namespace. Correct this.
Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au>
---
pasta.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/pasta.c b/pasta.c
index 0fd45e4..7eac8e9 100644
--- a/pasta.c
+++ b/pasta.c
@@ -244,8 +244,8 @@ void pasta_start_ns(struct ctx *c, int argc, char *argv[])
pasta_child_pid = clone(pasta_setup_ns,
ns_fn_stack + sizeof(ns_fn_stack) / 2,
- (c->netns_only ? 0 : CLONE_NEWNET) |
- CLONE_NEWIPC | CLONE_NEWPID | CLONE_NEWUSER |
+ (c->netns_only ? 0 : CLONE_NEWUSER) |
+ CLONE_NEWIPC | CLONE_NEWPID | CLONE_NEWNET |
CLONE_NEWUTS,
(void *)&arg);
--
@@ -244,8 +244,8 @@ void pasta_start_ns(struct ctx *c, int argc, char *argv[])
pasta_child_pid = clone(pasta_setup_ns,
ns_fn_stack + sizeof(ns_fn_stack) / 2,
- (c->netns_only ? 0 : CLONE_NEWNET) |
- CLONE_NEWIPC | CLONE_NEWPID | CLONE_NEWUSER |
+ (c->netns_only ? 0 : CLONE_NEWUSER) |
+ CLONE_NEWIPC | CLONE_NEWPID | CLONE_NEWNET |
CLONE_NEWUTS,
(void *)&arg);
--
2.37.3
next prev parent reply other threads:[~2022-09-12 12:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-12 12:23 [PATCH v3 00/10] Clean up handling of userns David Gibson
2022-09-12 12:23 ` [PATCH v3 01/10] Don't store UID & GID persistently in the context structure David Gibson
2022-09-12 12:24 ` [PATCH v3 02/10] Split checking for root from dropping root privilege David Gibson
2022-09-12 12:24 ` [PATCH v3 03/10] Consolidate determination of UID/GID to run as David Gibson
2022-09-12 12:24 ` [PATCH v3 04/10] Safer handling if we can't open /proc/self/uid_map David Gibson
2022-09-12 12:24 ` [PATCH v3 05/10] Move self-isolation code into a separate file David Gibson
2022-09-12 12:24 ` [PATCH v3 06/10] Consolidate validation of pasta namespace options David Gibson
2022-09-12 12:24 ` [PATCH v3 07/10] Clean up and rename conf_ns_open() David Gibson
2022-09-12 12:24 ` David Gibson [this message]
2022-09-12 12:24 ` [PATCH v3 09/10] Handle userns isolation and dropping root at the same time David Gibson
2022-09-12 12:24 ` [PATCH v3 10/10] Allow --userns when pasta spawns a command David Gibson
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