Michael Kerrisk
3ef9fdd1a9
user_namespaces.7: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-03-03 15:49:16 +01:00
Michael Kerrisk
74412268b4
user_namespaces.7: Update kernel version associated with 5-line limit for map files
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As at Linux 3.18, the limit is still five lines, so mention the
more recent kernel version in the text.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-03-03 13:20:28 +01:00
Michael Kerrisk
374215d5c6
user_namespaces.7: tfix
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Reported-by: Stéphane Aulery <saulery@free.fr>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-03-02 17:22:26 +01:00
Michael Kerrisk
1c3c805bcd
user_namespaces.7: tfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-01-16 07:54:02 +01:00
Mike Frysinger
dba9ebf2b4
user_namespaces(7): tfix
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-12-30 22:15:28 +01:00
Mike Frysinger
445d38c9b5
user_namespaces(7): tfix: drop spurious underline
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-11-11 06:39:06 +01:00
Michael Kerrisk
f5d401ddda
Removed trailing white space at end of lines
2014-09-21 11:24:24 +02:00
Michael Kerrisk
daf084cc33
clone.2, flock.2, getpid.2, getunwind.2, mount.2, reboot.2, semop.2, seteuid.2, setgid.2, setns.2, setresuid.2, setreuid.2, setuid.2, uname.2, unshare.2, clock.3, drand48.3, proc.5, capabilities.7, credentials.7, mq_overview.7, namespaces.7, pid_namespaces.7, svipc.7, user_namespaces.7: tstamp
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-21 11:23:07 +02:00
Michael Kerrisk
c228b4b4d1
namespaces.7, pid_namespaces.7, user_namespaces.7: srcfix: Add LICENSE_START tag
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-16 09:05:40 +02:00
Michael Kerrisk
09fcbb82f1
user_namespaces.7: spfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-14 21:29:47 -07:00
Michael Kerrisk
672e7505d6
user_namespaces.7: wfix
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Reported-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-14 21:29:47 -07:00
Eric W. Biederman
890a86d330
user_namespaces.7: Clarify the meaning of "Mounts that come as a single unit"
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Quoting Eric Biederman:
The importance of [mounts coming across as a dingle unit] is [to]
allow the global root to mount over things and not have to worry
that someone from a user namespace root can peek underneath.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-14 21:29:47 -07:00
Michael Kerrisk
576233f00e
user_namespaces.7: Additions from Andy Lutomirski
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-14 21:29:47 -07:00
Michael Kerrisk
6cfec3d80a
user_namespaces.7: Improvements from Andy Lutomirski
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-14 21:29:42 -07:00
Eric W. Biederman
b10c74ff25
user_namespaces.7: Add "Restrictions on mount namespaces" section
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Light edits by mtk
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
7aba437aa1
user_namespaces.7: Only single-threaded processes can join another user namespace
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Reported-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Serge E. Hallyn
1191a90d12
user_namespaces.7: Improve discussion of handling of capabilities during execve(2)
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
11d8ef176b
user_namespaces.7: srcfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
6c21c0f947
user_namespaces.7: Say a little less about execve(2) and user ID mappings
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The existing discussion under user and group ID mappings
probably suffices.
Reported-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
0ea90cb46d
user_namespaces.7: srcfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
99f04bb1e9
user_namespaces.7: Note that user namespaces isolate the root directory
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Reported-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
c0d02ab07a
user_namespaces.7: XFS support for user namespaces was added in Linux 3.11
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
ed8bd8452c
user_namespaces.7: Rework text on filesystem support for user namespaces
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
bc92175773
user_namespaces.7: srcfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
1005b0062e
user_namespaces.7: Remove a confused sentence
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Reported-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
e56b6c42d1
user_namespaces.7: Document maximum nesting depth for user namespaces
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
8f99aa89d9
user_namespaces.7: Minor tweaks to example program
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:03 -07:00
Michael Kerrisk
ab3311aa06
clone.2, namespaces.7, pid_namespaces.7, user_namespaces.7: wfix "file system" ==> "filesystem"
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:02 -07:00
Michael Kerrisk
f22abd505d
user_namespaces.7: Remove discussion of flags that can't be used with CLONE_NEWUSER
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That information is better put into individual pages.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:02 -07:00
Michael Kerrisk
714e9a7874
user_namespaces.7: Document restrictions on CLONE_NEWUSER with other CLONE_* flags
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:02 -07:00
Michael Kerrisk
63f66893e5
user_namespaces.7: srcfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:02 -07:00
Michael Kerrisk
c3f29a89b5
user_namespaces.7: Move discussion of availability of user namespaces to NOTES
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:02 -07:00
Michael Kerrisk
b6462f7519
user_namespaces.7: SEE ALSO: add newgidmap(1), newuidmap(1), subgid(5), subuid(5)
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Pages in the "shadow" package
Reported-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
77f9548830
user_namespaces.7: execve(2) will drop capabilities unless the caller's UID maps to 0
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Reported-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
550d1c537c
user_namespaces.7: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
0ac408439b
user_namespaces.7: Some subsystems don't support user namespaces in some kernel versions
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
6b92803065
user_namespaces.7: srcfix: Add FIXME
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
3b44624fa4
user_namespaces.7: Minor fixes in various places
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
8a87c8b32f
user_namespaces.7: srcfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
589e43bb00
user_namespaces.7: tfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
d68c5f1184
user_namespaces.7: Clarify some capabilities details
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
0666f549da
user_namespaces.7: Note treatment of "securebits" flags
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
37909beed2
user_namespaces.7: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
d916d9d073
user_namespaces.7: Rewrote and reorganized various pieces
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Mainly the pieces on capabilities, nested namespaces
and namespace membership.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
c9195dede4
user_namespaces.7: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
3a9ff754df
user_namespaces.7: SEE ALSO: remove unshare(1) (which is mentioned in namespaces(7))
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
96ec9d12e6
user_namespaces.7: Clarify that the child of clone() gets all privileges in new userns
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Nothing special happens for the children of unshare(2).
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
c94eb4a68d
user_namespaces.7: Add reference to Documentation/namespaces/resource-control.txt
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
cf7d22a535
user_namespaces.7: Further reworking of text on nested namespaces and capabilities
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00
Michael Kerrisk
c0098e767d
user_namespaces.7: Relocate text on capabilities of initial process in userns
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2014-09-13 20:16:01 -07:00