summaryrefslogtreecommitdiff
path: root/security/apparmor/include/perms.h
AgeCommit message (Collapse)Author
2024-11-26apparmor: Remove deadcodeDr. David Alan Gilbert
aa_label_audit, aa_label_find, aa_label_seq_print and aa_update_label_name were added by commit f1bd904175e8 ("apparmor: add the base fns() for domain labels") but never used. aa_profile_label_perm was added by commit 637f688dc3dc ("apparmor: switch from profiles to using labels on contexts") but never used. aa_secid_update was added by commit c092921219d2 ("apparmor: add support for mapping secids and using secctxes") but never used. aa_split_fqname has been unused since commit 3664268f19ea ("apparmor: add namespace lookup fns()") aa_lookup_profile has been unused since commit 93c98a484c49 ("apparmor: move exec domain mediation to using labels") aa_audit_perms_cb was only used by aa_profile_label_perm (see above). All of these commits are from around 2017. Remove them. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: John Johansen <john.johansen@canonical.com>
2023-10-18apparmor: add io_uring mediationGeorgia Garcia
For now, the io_uring mediation is limited to sqpoll and override_creds. Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
2023-10-18apparmor: combine common_audit_data and apparmor_audit_dataJohn Johansen
Everywhere where common_audit_data is used apparmor audit_data is also used. We can simplify the code and drop the use of the aad macro everywhere by combining the two structures. Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
2022-10-03apparmor: refactor profile rules and attachmentsJohn Johansen
In preparation for moving from a single set of rules and a single attachment to multiple rulesets and attachments separate from the profile refactor attachment information and ruleset info into their own structures. Signed-off-by: John Johansen <john.johansen@canonical.com>
2022-10-03apparmor: cleanup: move perm accumulation into perms.hJohn Johansen
Perm accumulation is going to be used much more frequently so let the compiler figure out if it can be optimized when used. Signed-off-by: John Johansen <john.johansen@canonical.com>
2022-10-03apparmor: make sure perm indexes are accumulatedJohn Johansen
accumulate permission indexes on a first encountered basis. This favors original rulesets so that new ones can not override without profile replacement. Signed-off-by: John Johansen <john.johansen@canonical.com>
2022-10-03apparmor: extend permissions to support a label and tag stringJohn Johansen
add indexes for label and tag entries. Rename the domain table to the str_table as its a shared string table with label and tags. Signed-off-by: John Johansen <john.johansen@canonical.com>
2022-10-03apparmor: extend xindex sizeJohn Johansen
Allow the xindex to have 2^24 entries. Signed-off-by: John Johansen <john.johansen@canonical.com>
2022-10-03apparmor: convert policy lookup to use accept as an indexJohn Johansen
Remap polidydb dfa accept table from embedded perms to an index, and then move the perm lookup to use the accept entry as an index into the perm table. This is done so that the perm table can be separated from the dfa, allowing dfa accept to index to share expanded permission sets. Signed-off-by: John Johansen <john.johansen@canonical.com>
2022-10-03apparmor: cleanup shared permission structJohn Johansen
The shared permissions struct has the stop field which is unneeded and the "reserved" subtree field commented which is needed. Also reorganize so that the entries are logically grouped. Signed-off-by: John Johansen <john.johansen@canonical.com>
2022-10-03apparmor: compute policydb permission on profile loadJohn Johansen
Rather than computing policydb permissions for each access permissions can be computed once on profile load and stored for lookup. Signed-off-by: John Johansen <john.johansen@canonical.com>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441Thomas Gleixner
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 315 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-19apparmor: Check buffer bounds when mapping permissions maskTyler Hicks
Don't read past the end of the buffer containing permissions characters or write past the end of the destination string. Detected by CoverityScan CID#1415361, 1415376 ("Out-of-bounds access") Fixes: e53cfe6c7caa ("apparmor: rework perm mapping to a slightly broader set") Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Acked-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
2018-03-13apparmor: add base infastructure for socket mediationJohn Johansen
version 2 - Force an abi break. Network mediation will only be available in v8 abi complaint policy. Provide a basic mediation of sockets. This is not a full net mediation but just whether a spcific family of socket can be used by an application, along with setting up some basic infrastructure for network mediation to follow. the user space rule hav the basic form of NETWORK RULE = [ QUALIFIERS ] 'network' [ DOMAIN ] [ TYPE | PROTOCOL ] DOMAIN = ( 'inet' | 'ax25' | 'ipx' | 'appletalk' | 'netrom' | 'bridge' | 'atmpvc' | 'x25' | 'inet6' | 'rose' | 'netbeui' | 'security' | 'key' | 'packet' | 'ash' | 'econet' | 'atmsvc' | 'sna' | 'irda' | 'pppox' | 'wanpipe' | 'bluetooth' | 'netlink' | 'unix' | 'rds' | 'llc' | 'can' | 'tipc' | 'iucv' | 'rxrpc' | 'isdn' | 'phonet' | 'ieee802154' | 'caif' | 'alg' | 'nfc' | 'vsock' | 'mpls' | 'ib' | 'kcm' ) ',' TYPE = ( 'stream' | 'dgram' | 'seqpacket' | 'rdm' | 'raw' | 'packet' ) PROTOCOL = ( 'tcp' | 'udp' | 'icmp' ) eg. network, network inet, Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2018-01-12apparmor: fix ptrace label match when matching stacked labelsJohn Johansen
Given a label with a profile stack of A//&B or A//&C ... A ptrace rule should be able to specify a generic trace pattern with a rule like ptrace trace A//&**, however this is failing because while the correct label match routine is called, it is being done post label decomposition so it is always being done against a profile instead of the stacked label. To fix this refactor the cross check to pass the full peer label in to the label_match. Fixes: 290f458a4f16 ("apparmor: allow ptrace checks to be finer grained than just capability") Cc: Stable <stable@vger.kernel.org> Reported-by: Matthew Garrett <mjg59@google.com> Tested-by: Matthew Garrett <mjg59@google.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
2017-10-26Revert "apparmor: add base infastructure for socket mediation"Linus Torvalds
This reverts commit 651e28c5537abb39076d3949fb7618536f1d242e. This caused a regression: "The specific problem is that dnsmasq refuses to start on openSUSE Leap 42.2. The specific cause is that and attempt to open a PF_LOCAL socket gets EACCES. This means that networking doesn't function on a system with a 4.14-rc2 system." Sadly, the developers involved seemed to be in denial for several weeks about this, delaying the revert. This has not been a good release for the security subsystem, and this area needs to change development practices. Reported-and-bisected-by: James Bottomley <James.Bottomley@hansenpartnership.com> Tracked-by: Thorsten Leemhuis <regressions@leemhuis.info> Cc: John Johansen <john.johansen@canonical.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Seth Arnold <seth.arnold@canonical.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-22apparmor: add base infastructure for socket mediationJohn Johansen
Provide a basic mediation of sockets. This is not a full net mediation but just whether a spcific family of socket can be used by an application, along with setting up some basic infrastructure for network mediation to follow. the user space rule hav the basic form of NETWORK RULE = [ QUALIFIERS ] 'network' [ DOMAIN ] [ TYPE | PROTOCOL ] DOMAIN = ( 'inet' | 'ax25' | 'ipx' | 'appletalk' | 'netrom' | 'bridge' | 'atmpvc' | 'x25' | 'inet6' | 'rose' | 'netbeui' | 'security' | 'key' | 'packet' | 'ash' | 'econet' | 'atmsvc' | 'sna' | 'irda' | 'pppox' | 'wanpipe' | 'bluetooth' | 'netlink' | 'unix' | 'rds' | 'llc' | 'can' | 'tipc' | 'iucv' | 'rxrpc' | 'isdn' | 'phonet' | 'ieee802154' | 'caif' | 'alg' | 'nfc' | 'vsock' | 'mpls' | 'ib' | 'kcm' ) ',' TYPE = ( 'stream' | 'dgram' | 'seqpacket' | 'rdm' | 'raw' | 'packet' ) PROTOCOL = ( 'tcp' | 'udp' | 'icmp' ) eg. network, network inet, Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2017-06-10apparmor: add cross check permission helper macrosJohn Johansen
The cross check permission helper macros will help simplify code that does cross task permission checks like ptrace. Signed-off-by: John Johansen <john.johansen@canonical.com>
2017-06-10apparmor: switch from profiles to using labels on contextsJohn Johansen
Begin the actual switch to using domain labels by storing them on the context and converting the label to a singular profile where possible. Signed-off-by: John Johansen <john.johansen@canonical.com>
2017-06-10apparmor: switch from file_perms to aa_permsJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com>
2017-06-10apparmor: add gerneric permissions struct and support fnsJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com>
2017-06-09apparmor: rework perm mapping to a slightly broader setJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com>
2017-06-08apparmor: move permissions into their own file to be more easily sharedJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com>
generated by cgit (git 2.34.1) at 2025-07-25 15:55:06 +0000