selinux-refpolicy/policy/flask/access_vectors

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#
# Define common prefixes for access vectors
#
# common common_name { permission_name ... }
#
# Define a common prefix for file access vectors.
#
common file
{
ioctl
read
write
create
getattr
setattr
lock
relabelfrom
relabelto
append
refpolicy: Define and allow map permission Kernel commit 6941857e82ae ("selinux: add a map permission check for mmap") added a map permission check on mmap so that we can distinguish memory mapped access (since it has different implications for revocation). The purpose of a separate map permission check on mmap(2) is to permit policy to prohibit memory mapping of specific files for which we need to ensure that every access is revalidated, particularly useful for scenarios where we expect the file to be relabeled at runtime in order to reflect state changes (e.g. cross-domain solution, assured pipeline without data copying). The kernel commit is anticipated to be included in Linux 4.13. This refpolicy change defines map permission for refpolicy. It mirrors the definition in the kernel classmap by adding it to the common definitions for files and sockets. This will break compatibility for kernels that predate the dynamic class/perm mapping support (< 2.6.33, < RHEL 6); on such kernels, one would instead need to add map permission to the end of each file and socket access vector. This change only allows map permission as needed, e.g. only in the mmap_file_perms and exec_file_perms object permission sets (since map is always required there) and only in specific interfaces or modules where denials were observed in limited testing. It is important to note that effective use of this permission requires complete removal of unconfined, as otherwise unconfined domains will be able to map all file types and therefore bypass the intended protection. If we wanted to exclude map permission to all file types by default from unconfined, we would need to add it to the list of permissions excluded from files_unconfined_type in kernel/files.te. Policies that depend on this permission not being allowed to specific file types should also make use of neverallow rules to ensure that this is not undermined by any allow rule, and ensure that they are performing neverallow checking at policy build time (e.g. make validate) or runtime (e.g. semanage.conf expand-check=1). Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2017-05-24 19:40:18 +00:00
map
unlink
link
rename
execute
quotaon
mounton
audit_access
open
execmod
watch
watch_mount
watch_sb
watch_with_perm
watch_reads
}
#
# Define a common prefix for socket access vectors.
#
common socket
{
# inherited from file
ioctl
read
write
create
getattr
setattr
lock
relabelfrom
relabelto
append
refpolicy: Define and allow map permission Kernel commit 6941857e82ae ("selinux: add a map permission check for mmap") added a map permission check on mmap so that we can distinguish memory mapped access (since it has different implications for revocation). The purpose of a separate map permission check on mmap(2) is to permit policy to prohibit memory mapping of specific files for which we need to ensure that every access is revalidated, particularly useful for scenarios where we expect the file to be relabeled at runtime in order to reflect state changes (e.g. cross-domain solution, assured pipeline without data copying). The kernel commit is anticipated to be included in Linux 4.13. This refpolicy change defines map permission for refpolicy. It mirrors the definition in the kernel classmap by adding it to the common definitions for files and sockets. This will break compatibility for kernels that predate the dynamic class/perm mapping support (< 2.6.33, < RHEL 6); on such kernels, one would instead need to add map permission to the end of each file and socket access vector. This change only allows map permission as needed, e.g. only in the mmap_file_perms and exec_file_perms object permission sets (since map is always required there) and only in specific interfaces or modules where denials were observed in limited testing. It is important to note that effective use of this permission requires complete removal of unconfined, as otherwise unconfined domains will be able to map all file types and therefore bypass the intended protection. If we wanted to exclude map permission to all file types by default from unconfined, we would need to add it to the list of permissions excluded from files_unconfined_type in kernel/files.te. Policies that depend on this permission not being allowed to specific file types should also make use of neverallow rules to ensure that this is not undermined by any allow rule, and ensure that they are performing neverallow checking at policy build time (e.g. make validate) or runtime (e.g. semanage.conf expand-check=1). Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2017-05-24 19:40:18 +00:00
map
# socket-specific
bind
connect
listen
accept
getopt
setopt
shutdown
recvfrom
sendto
name_bind
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}
#
# Define a common prefix for ipc access vectors.
#
common ipc
{
create
destroy
getattr
setattr
read
write
associate
unix_read
unix_write
}
#
# Define a common prefix for userspace database object access vectors.
#
common database
{
create
drop
getattr
setattr
relabelfrom
relabelto
}
#
# Define a common prefix for pointer and keyboard access vectors.
#
common x_device
{
getattr
setattr
use
read
write
getfocus
setfocus
bell
force_cursor
freeze
grab
manage
list_property
get_property
set_property
add
remove
create
destroy
}
#
# Define a common for capability access vectors.
#
common cap
{
# The capabilities are defined in include/uapi/linux/capability.h
# Capabilities >= 32 are defined in the cap2 common.
# Care should be taken to ensure that these are consistent with
# those definitions. (Order matters)
chown
dac_override
dac_read_search
fowner
fsetid
kill
setgid
setuid
setpcap
linux_immutable
net_bind_service
net_broadcast
net_admin
net_raw
ipc_lock
ipc_owner
sys_module
sys_rawio
sys_chroot
sys_ptrace
sys_pacct
sys_admin
sys_boot
sys_nice
sys_resource
sys_time
sys_tty_config
mknod
lease
audit_write
audit_control
setfcap
}
common cap2
{
mac_override # unused by SELinux
mac_admin
syslog
wake_alarm
block_suspend
audit_read
perfmon
bpf
checkpoint_restore
}
#
# Define the access vectors.
#
# class class_name [ inherits common_name ] { permission_name ... }
#
# Define the access vector interpretation for file-related objects.
#
class filesystem
{
mount
remount
unmount
getattr
relabelfrom
relabelto
associate
quotamod
quotaget
watch
}
class dir
inherits file
{
add_name
remove_name
reparent
search
rmdir
}
class file
inherits file
{
execute_no_trans
entrypoint
}
class lnk_file
inherits file
class chr_file
inherits file
class blk_file
inherits file
class sock_file
inherits file
class fifo_file
inherits file
class fd
{
use
}
#
# Define the access vector interpretation for network-related objects.
#
class socket
inherits socket
class tcp_socket
inherits socket
{
node_bind
name_connect
}
class udp_socket
inherits socket
{
node_bind
}
class rawip_socket
inherits socket
{
node_bind
}
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class node
{
recvfrom
sendto
}
class netif
{
ingress
egress
}
class netlink_socket
inherits socket
class packet_socket
inherits socket
class key_socket
inherits socket
class unix_stream_socket
inherits socket
{
connectto
}
class unix_dgram_socket
inherits socket
#
# Define the access vector interpretation for process-related objects
#
class process
{
fork
transition
sigchld # commonly granted from child to parent
sigkill # cannot be caught or ignored
sigstop # cannot be caught or ignored
signull # for kill(pid, 0)
signal # all other signals
ptrace
getsched
setsched
getsession
getpgid
setpgid
getcap
setcap
share
getattr
setexec
setfscreate
noatsecure
siginh
setrlimit
rlimitinh
dyntransition
setcurrent
execmem
execstack
execheap
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setkeycreate
setsockcreate
getrlimit
}
class process2
{
nnp_transition
nosuid_transition
}
#
# Define the access vector interpretation for ipc-related objects
#
class ipc
inherits ipc
class sem
inherits ipc
class msgq
inherits ipc
{
enqueue
}
class msg
{
send
receive
}
class shm
inherits ipc
{
lock
}
#
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# Define the access vector interpretation for the security server.
#
class security
{
compute_av
compute_create
compute_member
check_context
load_policy
compute_relabel
compute_user
setenforce # was avc_toggle in system class
setbool
setsecparam
setcheckreqprot
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read_policy
validate_trans
}
#
# Define the access vector interpretation for system operations.
#
class system
{
ipc_info
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syslog_read
syslog_mod
syslog_console
module_request
module_load
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# these are overloaded userspace
# permissions from systemd
halt
reboot
status
start
stop
enable
disable
reload
}
#
# Define the access vector interpretation for controlling capabilities
#
class capability
inherits cap
class capability2
inherits cap2
#
# Define the access vector interpretation for controlling
# changes to passwd information.
#
class passwd
{
passwd # change another user passwd
chfn # change another user finger info
chsh # change another user shell
rootok # pam_rootok check (skip auth)
crontab # crontab on another user
}
#
# SE-X Windows stuff
#
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class x_drawable
{
create
destroy
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read
write
blend
getattr
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setattr
list_child
add_child
remove_child
list_property
get_property
set_property
manage
override
show
hide
send
receive
}
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class x_screen
{
getattr
setattr
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hide_cursor
show_cursor
saver_getattr
saver_setattr
saver_hide
saver_show
}
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class x_gc
{
create
destroy
getattr
setattr
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use
}
class x_font
{
create
destroy
getattr
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add_glyph
remove_glyph
use
}
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class x_colormap
{
create
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destroy
read
write
getattr
add_color
remove_color
install
uninstall
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use
}
class x_property
{
create
destroy
read
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write
append
getattr
setattr
}
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class x_selection
{
read
write
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getattr
setattr
}
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class x_cursor
{
create
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destroy
read
write
getattr
setattr
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use
}
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class x_client
{
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destroy
getattr
setattr
manage
}
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class x_device
inherits x_device
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class x_server
{
getattr
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setattr
record
debug
grab
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manage
}
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class x_extension
{
query
use
}
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class x_resource
{
read
write
}
class x_event
{
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send
receive
}
class x_synthetic_event
{
send
receive
}
#
# Extended Netlink classes
#
class netlink_route_socket
inherits socket
{
nlmsg_read
nlmsg_write
}
Rename obsolete netlink_firewall_socket and netlink_ip6fw_socket classes The implementation for NETLINK_FIREWALL and NETLINK_IP6_FW protocols was removed from the kernel in commit d16cf20e2f2f13411eece7f7fb72c17d141c4a84 ("netfilter: remove ip_queue support") circa Linux 3.5. Consequently, kernels >= 3.5 should never perform permission checks on these classes although they remained defined in the SELinux kernel classmap until the netlink classes were updated by https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6c6d2e9bde1c1c87a7ead806f8f5e2181d41a652 circa Linux v4.2. Removing these class definitions would break legacy userspace that relies upon stable values for the userspace security class definitions since it will perturb those values by removing classes that preceded them. dbus-daemon in particular is known to break if its dbus class changes at runtime, which could occur upon a policy reload that removes these classes. Fixing this requires ensuring that dbus-daemon looks up the appropriate class value on each use or upon policy reload, via userspace interfaces such as selinux_check_access(), string_to_security_class(), and/or selinux_set_callback(SELINUX_CB_POLICYLOAD, ...) with a callback function that remaps the class value if needed. Other userspace policy enforcers are believed to have been updated in recent versions but older versions may break upon such a change. Hence, this change renames these classes with obsolete_ prefixes and removes all rules referencing them from refpolicy, thereby preserving the class numbering for subsequent classes while making it clear that these classses are no longer meaningful for modern kernels. This change does however create a potential compatibility break for kernels < 3.5, since the policy will cease to define the kernel class names and therefore the kernel will handle permission checks on the class based on the handle_unknown setting in policy. For most Linux distributions, this will default to allow and therefore avoid breaking userspace but will fail open. For kernels < 2.6.33 (i.e. the dynamic class/perm discovery support), the presence of a class in policy with the same number but a different name than the kernel class will cause the policy load to fail entirely. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2020-01-14 15:31:00 +00:00
class obsolete_netlink_firewall_socket
inherits socket
{
nlmsg_read
nlmsg_write
}
class netlink_tcpdiag_socket
inherits socket
{
nlmsg_read
nlmsg_write
}
class netlink_nflog_socket
inherits socket
class netlink_xfrm_socket
inherits socket
{
nlmsg_read
nlmsg_write
}
class netlink_selinux_socket
inherits socket
class netlink_audit_socket
inherits socket
{
nlmsg_read
nlmsg_write
nlmsg_relay
nlmsg_readpriv
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nlmsg_tty_audit
}
Rename obsolete netlink_firewall_socket and netlink_ip6fw_socket classes The implementation for NETLINK_FIREWALL and NETLINK_IP6_FW protocols was removed from the kernel in commit d16cf20e2f2f13411eece7f7fb72c17d141c4a84 ("netfilter: remove ip_queue support") circa Linux 3.5. Consequently, kernels >= 3.5 should never perform permission checks on these classes although they remained defined in the SELinux kernel classmap until the netlink classes were updated by https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6c6d2e9bde1c1c87a7ead806f8f5e2181d41a652 circa Linux v4.2. Removing these class definitions would break legacy userspace that relies upon stable values for the userspace security class definitions since it will perturb those values by removing classes that preceded them. dbus-daemon in particular is known to break if its dbus class changes at runtime, which could occur upon a policy reload that removes these classes. Fixing this requires ensuring that dbus-daemon looks up the appropriate class value on each use or upon policy reload, via userspace interfaces such as selinux_check_access(), string_to_security_class(), and/or selinux_set_callback(SELINUX_CB_POLICYLOAD, ...) with a callback function that remaps the class value if needed. Other userspace policy enforcers are believed to have been updated in recent versions but older versions may break upon such a change. Hence, this change renames these classes with obsolete_ prefixes and removes all rules referencing them from refpolicy, thereby preserving the class numbering for subsequent classes while making it clear that these classses are no longer meaningful for modern kernels. This change does however create a potential compatibility break for kernels < 3.5, since the policy will cease to define the kernel class names and therefore the kernel will handle permission checks on the class based on the handle_unknown setting in policy. For most Linux distributions, this will default to allow and therefore avoid breaking userspace but will fail open. For kernels < 2.6.33 (i.e. the dynamic class/perm discovery support), the presence of a class in policy with the same number but a different name than the kernel class will cause the policy load to fail entirely. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2020-01-14 15:31:00 +00:00
class obsolete_netlink_ip6fw_socket
inherits socket
{
nlmsg_read
nlmsg_write
}
class netlink_dnrt_socket
inherits socket
# Define the access vector interpretation for controlling
# access and communication through the D-BUS messaging
# system.
#
class dbus
{
acquire_svc
send_msg
}
# Define the access vector interpretation for controlling
# access through the name service cache daemon (nscd).
#
class nscd
{
getpwd
getgrp
gethost
getstat
admin
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shmempwd
shmemgrp
shmemhost
getserv
shmemserv
}
# Define the access vector interpretation for controlling
# access to IPSec network data by association
#
class association
{
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sendto
recvfrom
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setcontext
polmatch
}
# Updated Netlink class for KOBJECT_UEVENT family.
class netlink_kobject_uevent_socket
inherits socket
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class appletalk_socket
inherits socket
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class packet
{
send
recv
relabelto
forward_in
forward_out
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}
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class key
{
view
read
write
search
link
setattr
create
}
class context
{
unused_perm
contains
}
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class dccp_socket
inherits socket
{
node_bind
name_connect
}
class memprotect
{
mmap_zero
}
class db_database
inherits database
{
access
install_module
load_module
get_param # deprecated
set_param # deprecated
}
class db_table
inherits database
{
select
update
insert
delete
lock
}
class db_procedure
inherits database
{
execute
entrypoint
install
}
class db_column
inherits database
{
select
update
insert
}
class db_tuple
{
relabelfrom
relabelto
use
select
update
insert
delete
}
class db_blob
inherits database
{
read
write
import
export
}
class db_exception
inherits database
{
use
}
class db_datatype
inherits database
{
use
}
# network peer labels
class peer
{
recv
}
class x_application_data
{
paste
paste_after_confirm
copy
}
class kernel_service
{
use_as_override
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create_files_as
}
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class tun_socket
inherits socket
{
attach_queue
}
class binder
{
impersonate
call
set_context_mgr
transfer
}
class netlink_iscsi_socket
inherits socket
class netlink_fib_lookup_socket
inherits socket
class netlink_connector_socket
inherits socket
class netlink_netfilter_socket
inherits socket
class netlink_generic_socket
inherits socket
class netlink_scsitransport_socket
inherits socket
class netlink_rdma_socket
inherits socket
class netlink_crypto_socket
inherits socket
class x_pointer
inherits x_device
class x_keyboard
inherits x_device
New database object classes The attached patch adds a few database object classes, as follows: * db_schema ------------ A schema object performs as a namespace in database; similar to directories in filesystem. It seems some of (but not all) database objects are stored within a certain schema logically. We can qualify these objects using schema name. For example, a table: "my_tbl" within a schema: "my_scm" is identified by "my_scm.my_tbl". This table is completely different from "your_scm.my_tbl" that it a table within a schema: "your_scm". Its characteristics is similar to a directory in filesystem, so it has similar permissions. The 'search' controls to resolve object name within a schema. The 'add_name' and 'remove_name' controls to add/remove an object to/from a schema. See also, http://developer.postgresql.org/pgdocs/postgres/sql-createschema.html In the past discussion, a rubix folks concerned about no object class definition for schema and catalog which is an upper level namespace. Since I'm not certain whether we have a disadvantage when 'db_schema' class is applied on catalog class, I don't add this definition yet. Default security context of 'db_table' and 'db_procedure' classes get being computed using type_transition with 'db_schema' class, instead of 'db_database' class. It reflects logical hierarchy of database object more correctly. * db_view ---------- A view object performs as a virtual table. We can run SELECT statement on views, although it has no physical entities. The definition of views are expanded in run-time, so it allows us to describe complex queries with keeping readability. This object class uniquely provides 'expand' permission that controls whether user can expand this view, or not. The default security context shall be computed by type transition rule with a schema object that owning the view. See also, http://developer.postgresql.org/pgdocs/postgres/sql-createview.html * db_sequence -------------- A sequence object is a sequential number generator. This object class uniquely provides 'get_value', 'next_value' and 'set_value' permissions. The 'get_value' controls to reference the sequence object. The 'next_value' controls to fetch and increment the value of sequence object. The 'set_value' controls to set an arbitrary value. The default security context shall be computed by type transition rule with a schema object that owning the sequence. See also, http://developer.postgresql.org/pgdocs/postgres/sql-createsequence.html * db_language -------------- A language object is an installed engine to execute procedures. PostgreSQL supports to define SQL procedures using regular script languages; such as Perl, Tcl, not only SQL or binary modules. In addition, v9.0 or later supports DO statement. It allows us to execute a script statement on server side without defining a SQL procedure. It requires to control whether user can execute DO statement on this language, or not. This object class uniquely provides 'implement' and 'execute' permissions. The 'implement' controls whether a procedure can be implemented with this language, or not. So, it takes security context of the procedure as subject. The 'execute' controls to execute code block using DO statement. The default security context shall be computed by type transition rule with a database object, because it is not owned by a certain schema. In the default policy, we provide two types: 'sepgsql_lang_t' and 'sepgsql_safe_lang_t' that allows unpriv users to execute DO statement. The default is 'sepgsql_leng_t'. We assume newly installed language may be harm, so DBA has to relabel it explicitly, if he want user defined procedures using the language. See also, http://developer.postgresql.org/pgdocs/postgres/sql-createlanguage.html http://developer.postgresql.org/pgdocs/postgres/sql-do.html P.S) I found a bug in MCS. It didn't constraint 'relabelfrom' permission of 'db_procedure' class. IIRC, I fixed it before, but it might be only MLS side. Sorry. Thanks, -- KaiGai Kohei <kaigai@ak.jp.nec.com> policy/flask/access_vectors | 29 ++++++++ policy/flask/security_classes | 6 ++ policy/mcs | 16 ++++- policy/mls | 58 ++++++++++++++- policy/modules/kernel/kernel.if | 8 ++ policy/modules/services/postgresql.if | 125 +++++++++++++++++++++++++++++++-- policy/modules/services/postgresql.te | 116 +++++++++++++++++++++++++++++- 7 files changed, 342 insertions(+), 16 deletions(-)
2010-12-10 09:49:24 +00:00
class db_schema
inherits database
{
search
add_name
remove_name
}
class db_view
inherits database
{
expand
}
class db_sequence
inherits database
{
get_value
next_value
set_value
}
class infiniband_pkey
{
access
}
class infiniband_endport
{
manage_subnet
}
New database object classes The attached patch adds a few database object classes, as follows: * db_schema ------------ A schema object performs as a namespace in database; similar to directories in filesystem. It seems some of (but not all) database objects are stored within a certain schema logically. We can qualify these objects using schema name. For example, a table: "my_tbl" within a schema: "my_scm" is identified by "my_scm.my_tbl". This table is completely different from "your_scm.my_tbl" that it a table within a schema: "your_scm". Its characteristics is similar to a directory in filesystem, so it has similar permissions. The 'search' controls to resolve object name within a schema. The 'add_name' and 'remove_name' controls to add/remove an object to/from a schema. See also, http://developer.postgresql.org/pgdocs/postgres/sql-createschema.html In the past discussion, a rubix folks concerned about no object class definition for schema and catalog which is an upper level namespace. Since I'm not certain whether we have a disadvantage when 'db_schema' class is applied on catalog class, I don't add this definition yet. Default security context of 'db_table' and 'db_procedure' classes get being computed using type_transition with 'db_schema' class, instead of 'db_database' class. It reflects logical hierarchy of database object more correctly. * db_view ---------- A view object performs as a virtual table. We can run SELECT statement on views, although it has no physical entities. The definition of views are expanded in run-time, so it allows us to describe complex queries with keeping readability. This object class uniquely provides 'expand' permission that controls whether user can expand this view, or not. The default security context shall be computed by type transition rule with a schema object that owning the view. See also, http://developer.postgresql.org/pgdocs/postgres/sql-createview.html * db_sequence -------------- A sequence object is a sequential number generator. This object class uniquely provides 'get_value', 'next_value' and 'set_value' permissions. The 'get_value' controls to reference the sequence object. The 'next_value' controls to fetch and increment the value of sequence object. The 'set_value' controls to set an arbitrary value. The default security context shall be computed by type transition rule with a schema object that owning the sequence. See also, http://developer.postgresql.org/pgdocs/postgres/sql-createsequence.html * db_language -------------- A language object is an installed engine to execute procedures. PostgreSQL supports to define SQL procedures using regular script languages; such as Perl, Tcl, not only SQL or binary modules. In addition, v9.0 or later supports DO statement. It allows us to execute a script statement on server side without defining a SQL procedure. It requires to control whether user can execute DO statement on this language, or not. This object class uniquely provides 'implement' and 'execute' permissions. The 'implement' controls whether a procedure can be implemented with this language, or not. So, it takes security context of the procedure as subject. The 'execute' controls to execute code block using DO statement. The default security context shall be computed by type transition rule with a database object, because it is not owned by a certain schema. In the default policy, we provide two types: 'sepgsql_lang_t' and 'sepgsql_safe_lang_t' that allows unpriv users to execute DO statement. The default is 'sepgsql_leng_t'. We assume newly installed language may be harm, so DBA has to relabel it explicitly, if he want user defined procedures using the language. See also, http://developer.postgresql.org/pgdocs/postgres/sql-createlanguage.html http://developer.postgresql.org/pgdocs/postgres/sql-do.html P.S) I found a bug in MCS. It didn't constraint 'relabelfrom' permission of 'db_procedure' class. IIRC, I fixed it before, but it might be only MLS side. Sorry. Thanks, -- KaiGai Kohei <kaigai@ak.jp.nec.com> policy/flask/access_vectors | 29 ++++++++ policy/flask/security_classes | 6 ++ policy/mcs | 16 ++++- policy/mls | 58 ++++++++++++++- policy/modules/kernel/kernel.if | 8 ++ policy/modules/services/postgresql.if | 125 +++++++++++++++++++++++++++++++-- policy/modules/services/postgresql.te | 116 +++++++++++++++++++++++++++++- 7 files changed, 342 insertions(+), 16 deletions(-)
2010-12-10 09:49:24 +00:00
class db_language
inherits database
{
implement
execute
}
2015-10-20 15:29:11 +00:00
class service
{
start
stop
status
reload
enable
disable
}
#
# Define the access vector interpretation for controlling capabilities
# in user namespaces
#
class cap_userns
inherits cap
class cap2_userns
inherits cap2
#
# Define the access vector interpretation for the new socket classes
# enabled by the extended_socket_class policy capability.
#
#
# The next two classes were previously mapped to rawip_socket and therefore
# have the same definition as rawip_socket (until further permissions
# are defined).
#
class sctp_socket
inherits socket
{
node_bind
name_connect
association
}
class icmp_socket
inherits socket
{
node_bind
}
#
# The remaining network socket classes were previously
# mapped to the socket class and therefore have the
# same definition as socket.
#
class ax25_socket
inherits socket
class ipx_socket
inherits socket
class netrom_socket
inherits socket
class atmpvc_socket
inherits socket
class x25_socket
inherits socket
class rose_socket
inherits socket
class decnet_socket
inherits socket
class atmsvc_socket
inherits socket
class rds_socket
inherits socket
class irda_socket
inherits socket
class pppox_socket
inherits socket
class llc_socket
inherits socket
class can_socket
inherits socket
class tipc_socket
inherits socket
class bluetooth_socket
inherits socket
class iucv_socket
inherits socket
class rxrpc_socket
inherits socket
class isdn_socket
inherits socket
class phonet_socket
inherits socket
class ieee802154_socket
inherits socket
class caif_socket
inherits socket
class alg_socket
inherits socket
class nfc_socket
inherits socket
class vsock_socket
inherits socket
class kcm_socket
inherits socket
class qipcrtr_socket
inherits socket
class smc_socket
inherits socket
class bpf
{
map_create
map_read
map_write
prog_load
prog_run
}
class xdp_socket
inherits socket
class perf_event
{
open
cpu
kernel
tracepoint
read
write
}
class lockdown
{
integrity
confidentiality
}