This change adds the CONFIG_CFI_CLANG option, CFI error handling,
and a faster look-up table for cross module CFI checks.
Bug: 67506682
Change-Id: Ic009f0a629b552a0eb16e6d89808c7029e91447d
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
[AmitP: Rebased to newer kernels without clang LTO support]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
When handling SHDLC I-Frame commands "pipe" field used for indexing
into an array should be checked before usage. If left unchecked it
might access memory outside of the array of size NFC_HCI_MAX_PIPES(127).
Bug: 62679701
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
sock_i_uid() acquires the sk_callback_lock which does not exist for
sockets in TCP_NEW_SYN_RECV state. This results in errors showing up
as spinlock bad magic. Fix this by looking for the full sock as
suggested by Eric.
Callstack for reference -
-003|rwlock_bug
-004|arch_read_lock
-004|do_raw_read_lock
-005|raw_read_lock_bh
-006|sock_i_uid
-007|from_kuid_munged(inline)
-007|reset_timer
-008|idletimer_tg_target
-009|ipt_do_table
-010|iptable_mangle_hook
-011|nf_iterate
-012|nf_hook_slow
-013|NF_HOOK_COND(inline)
-013|ip_output
-014|ip_local_out
-015|ip_build_and_send_pkt
-016|tcp_v4_send_synack
-017|atomic_sub_return(inline)
-017|reqsk_put(inline)
-017|tcp_conn_request
-018|tcp_v4_conn_request
-019|tcp_rcv_state_process
-020|tcp_v4_do_rcv
-021|tcp_v4_rcv
-022|ip_local_deliver_finish
-023|NF_HOOK_THRESH(inline)
-023|NF_HOOK(inline)
-023|ip_local_deliver
-024|ip_rcv_finish
-025|NF_HOOK_THRESH(inline)
-025|NF_HOOK(inline)
-025|ip_rcv
-026|deliver_skb(inline)
-026|deliver_ptype_list_skb(inline)
-026|__netif_receive_skb_core
-027|__netif_receive_skb
-028|netif_receive_skb_internal
-029|netif_receive_skb
Change-Id: Ic8f3a3d2d7af31434d1163b03971994e2125d552
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Cc: Eric Dumazet <edumazet@google.com>
schedule_work(&timer->work) appears to be called after
cancel_work_sync(&info->timer->work) is completed.
Work can be scheduled from the PM_POST_SUSPEND notification event
even after cancel_work_sync is called.
Call stack
-004|notify_netlink_uevent(
| [X19] timer = 0xFFFFFFC0A5DFC780 -> (
| ...
| [NSD:0xFFFFFFC0A5DFC800] kobj = 0x6B6B6B6B6B6B6B6B,
| [NSD:0xFFFFFFC0A5DFC868] timeout = 0x6B6B6B6B,
| [NSD:0xFFFFFFC0A5DFC86C] refcnt = 0x6B6B6B6B,
| [NSD:0xFFFFFFC0A5DFC870] work_pending = 0x6B,
| [NSD:0xFFFFFFC0A5DFC871] send_nl_msg = 0x6B,
| [NSD:0xFFFFFFC0A5DFC872] active = 0x6B,
| [NSD:0xFFFFFFC0A5DFC874] uid = 0x6B6B6B6B,
| [NSD:0xFFFFFFC0A5DFC878] suspend_time_valid = 0x6B))
-005|idletimer_tg_work(
-006|__read_once_size(inline)
-006|static_key_count(inline)
-006|static_key_false(inline)
-006|trace_workqueue_execute_end(inline)
-006|process_one_work(
-007|worker_thread(
-008|kthread(
-009|ret_from_fork(asm)
---|end of frame
Force any pending idletimer_tg_work() to complete before freeing
the associated work struct and after unregistering to the pm_notifier
callback.
Change-Id: I4c5f0a1c142f7d698c092cf7bcafdb0f9fbaa9c1
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Message notifications contains an additional uid field. This field
represents the uid that was responsible for waking the radio. And hence
it is present only in notifications stating that the radio is now
active.
Change-Id: I18fc73eada512e370d7ab24fc9f890845037b729
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
Bug: 20264396
[AmitP: Folded following android-4.9 commit changes into this patch
22ea73dee036 ("nf: IDLETIMER: Fix broken uid field in the msg")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Message notifications contains an additional timestamp field in nano seconds.
The expiry time for the timers are modified during suspend/resume.
If timer was supposed to expire while the system is suspended then a
notification is sent when it resumes with the timestamp of the scheduled expiry.
Removes the race condition for multiple work scheduled.
Bug: 13247811
Change-Id: I752c5b00225fe7085482819f975cc0eb5af89bff
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
[AmitP: Folded following android-4.9 commit changes into this patch
13e257eaa624 ("nf: Remove compilation error caused by e8430cbed3ef15fdb1ac26cfd020e010aa5f1c35")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Send notifications when the label becomes active after an idle period.
Send netlink message notifications in addition to sysfs notifications.
Using a uevent with
subsystem=xt_idletimer
INTERFACE=...
STATE={active,inactive}
This is backport from common android-3.0
commit: beb914e987cbbd368988d2b94a6661cb907c4d5a
with uevent support instead of a new netlink message type.
Change-Id: I31677ef00c94b5f82c8457e5bf9e5e584c23c523
Signed-off-by: Ashish Sharma <ashishsharma@google.com>
Signed-off-by: JP Abgrall <jpa@google.com>
The xt_quota2 came from
http://sourceforge.net/projects/xtables-addons/develop
It needed tweaking for it to compile within the kernel tree.
Fixed kmalloc() and create_proc_entry() invocations within
a non-interruptible context.
Removed useless copying of current quota back to the iptable's
struct matchinfo:
- those are per CPU: they will change randomly based on which
cpu gets to update the value.
- they prevent matching a rule: e.g.
-A chain -m quota2 --name q1 --quota 123
can't be followed by
-D chain -m quota2 --name q1 --quota 123
as the 123 will be compared to the struct matchinfo's quota member.
Use the NETLINK NETLINK_NFLOG family to log a single message
when the quota limit is reached.
It uses the same packet type as ipt_ULOG, but
- never copies skb data,
- uses 112 as the event number (ULOG's +1)
It doesn't log if the module param "event_num" is 0.
Change-Id: I021d3b743db3b22158cc49acb5c94d905b501492
Signed-off-by: JP Abgrall <jpa@google.com>
[AmitP: Fix quota2_log() call and use ktime directly to align with
upstream commits 2456e85535 ("ktime: Get rid of the union") and
613dbd9572 ("netfilter: x_tables: move hook state into xt_action_param structure").
Also folded following android-4.9 commit changes into this patch
eb6aba2a14b9 ("ANDROID: netfilter: xt_quota2: 3.10 fixes.")
Parts of 85a2eb5b48fc ("ANDROID: netfilter: xt_qtaguid: 64-bit warning fixes")
89f9044e826c ("ANDROID: net: kuid/kguid build fixes")
60d4c172c5cd ("ANDROID: netfilter: xt_quota2: make quota2_log work well")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
The original xt_quota in the kernel is plain broken:
- counts quota at a per CPU level
(was written back when ubiquitous SMP was just a dream)
- provides no way to count across IPV4/IPV6.
This patch is the original unaltered code from:
http://sourceforge.net/projects/xtables-addons
at commit e84391ce665cef046967f796dd91026851d6bbf3
Change-Id: I19d49858840effee9ecf6cff03c23b45a97efdeb
Signed-off-by: JP Abgrall <jpa@google.com>
When using the PF_KEY interface, SHA-256 hashes are hardcoded to
use 96-bit truncation. This is a violation of RFC4868, which
specifies 128-bit truncation, but will not be fixed upstream due
to backwards compatibility concerns and because the PF_KEY
interface is deprecated in favour of netlink XFRM (which allows
the app to specify an arbitrary truncation length).
Change the hardcoded truncation length from 96 to 128 so that
PF_KEY apps such as racoon will work with standards-compliant VPN
servers.
Bug: 34114242
Change-Id: Ie46bff4b6358f18117d0be241171d677d31d33f7
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Some platforms do not want to power down rfkill devices on suspend.
Change-Id: I62a11630521c636d54a4a02ab9037a43435925f5
Signed-off-by: Nick Pelly <npelly@google.com>
[AmitP: Folded following android-4.9 commit changes into this patch
faad2b874fea ("rfkill: fix unused function warning")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Currently, IPv6 router discovery always puts routes into
RT6_TABLE_MAIN. This causes problems for connection managers
that want to support multiple simultaneous network connections
and want control over which one is used by default (e.g., wifi
and wired).
To work around this connection managers typically take the routes
they prefer and copy them to static routes with low metrics in
the main table. This puts the burden on the connection manager
to watch netlink to see if the routes have changed, delete the
routes when their lifetime expires, etc.
Instead, this patch adds a per-interface sysctl to have the
kernel put autoconf routes into different tables. This allows
each interface to have its own autoconf table, and choosing the
default interface (or using different interfaces at the same
time for different types of traffic) can be done using
appropriate ip rules.
The sysctl behaves as follows:
- = 0: default. Put routes into RT6_TABLE_MAIN as before.
- > 0: manual. Put routes into the specified table.
- < 0: automatic. Add the absolute value of the sysctl to the
device's ifindex, and use that table.
The automatic mode is most useful in conjunction with
net.ipv6.conf.default.accept_ra_rt_table. A connection manager
or distribution could set it to, say, -100 on boot, and
thereafter just use IP rules.
Change-Id: I82d16e3737d9cdfa6489e649e247894d0d60cbb1
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
[AmitP: Refactored original changes to align with
the changes introduced by upstream commit
830218c1ad ("net: ipv6: Fix processing of RAs in presence of VRF")
Also folded following android-4.9 commit changes into this patch
be65fb01da4d ("ANDROID: net: ipv6: remove unused variable ifindex in")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
When calling:
ipv6_find_hdr(skb, &thoff, -1, NULL)
on a fragmented packet, thoff would be left with a random
value causing callers to read random memory offsets with:
skb_header_pointer(skb, thoff, ...)
Now we force ipv6_find_hdr() to return a failure in this case.
Calling:
ipv6_find_hdr(skb, &thoff, -1, &fragoff)
will set fragoff as expected, and not return a failure.
Change-Id: Ib474e8a4267dd2b300feca325811330329684a88
Signed-off-by: JP Abgrall <jpa@google.com>
The default initial rwnd is hardcoded to 10.
Now we allow it to be controlled via
/proc/sys/net/ipv4/tcp_default_init_rwnd
which limits the values from 3 to 100
This is somewhat needed because ipv6 routes are
autoconfigured by the kernel.
See "An Argument for Increasing TCP's Initial Congestion Window"
in https://developers.google.com/speed/articles/tcp_initcwnd_paper.pdf
Change-Id: I386b2a9d62de0ebe05c1ebe1b4bd91b314af5c54
Signed-off-by: JP Abgrall <jpa@google.com>
Conflicts:
net/ipv4/sysctl_net_ipv4.c
net/ipv4/tcp_input.c
[AmitP: Folded following android-4.9 commit changes into this patch
3823c8b26e6e ("ANDROID: tcp: fix tcp_default_init_rwnd() for 4.1")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Add a family of knobs to /sys/kernel/ipv4 for controlling the TCP window size:
tcp_wmem_min
tcp_wmem_def
tcp_wmem_max
tcp_rmem_min
tcp_rmem_def
tcp_rmem_max
This six values mirror the sysctl knobs in /proc/sys/net/ipv4/tcp_wmem and
/proc/sys/net/ipv4/tcp_rmem.
Sysfs, unlike sysctl, allows us to set and manage the files' permissions and
owners.
Signed-off-by: Robert Love <rlove@google.com>
With CONFIG_ANDROID_PARANOID_NETWORK, require specific uids/gids to instantiate
network sockets.
Signed-off-by: Robert Love <rlove@google.com>
paranoid networking: Use in_egroup_p() to check group membership
The previous group_search() caused trouble for partners with module builds.
in_egroup_p() is also cleaner.
Signed-off-by: Nick Pelly <npelly@google.com>
Fix 2.6.29 build.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
net: Fix compilation of the IPv6 module
Fix compilation of the IPv6 module -- current->euid does not exist anymore,
current_euid() is what needs to be used.
Signed-off-by: Steinar H. Gunderson <sesse@google.com>
net: bluetooth: Remove the AID_NET_BT* gid numbers
Removed bluetooth checks for AID_NET_BT and AID_NET_BT_ADMIN
which are not useful anymore.
This is in preparation for getting rid of all the AID_* gids.
Change-Id: I879d7181f07532784499ef152288d12a03ab6354
Signed-off-by: JP Abgrall <jpa@google.com>
[AmitP: Folded following android-4.9 commit changes into this patch
a2624d7b9d73 ("ANDROID: Add android_aid.h")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Pull IDA updates from Matthew Wilcox:
"A better IDA API:
id = ida_alloc(ida, GFP_xxx);
ida_free(ida, id);
rather than the cumbersome ida_simple_get(), ida_simple_remove().
The new IDA API is similar to ida_simple_get() but better named. The
internal restructuring of the IDA code removes the bitmap
preallocation nonsense.
I hope the net -200 lines of code is convincing"
* 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax: (29 commits)
ida: Change ida_get_new_above to return the id
ida: Remove old API
test_ida: check_ida_destroy and check_ida_alloc
test_ida: Convert check_ida_conv to new API
test_ida: Move ida_check_max
test_ida: Move ida_check_leaf
idr-test: Convert ida_check_nomem to new API
ida: Start new test_ida module
target/iscsi: Allocate session IDs from an IDA
iscsi target: fix session creation failure handling
drm/vmwgfx: Convert to new IDA API
dmaengine: Convert to new IDA API
ppc: Convert vas ID allocation to new IDA API
media: Convert entity ID allocation to new IDA API
ppc: Convert mmu context allocation to new IDA API
Convert net_namespace to new IDA API
cb710: Convert to new IDA API
rsxx: Convert to new IDA API
osd: Convert to new IDA API
sd: Convert to new IDA API
...
Merge yet more updates from Andrew Morton:
- the rest of MM
- various misc fixes and tweaks
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits)
mm: Change return type int to vm_fault_t for fault handlers
lib/fonts: convert comments to utf-8
s390: ebcdic: convert comments to UTF-8
treewide: convert ISO_8859-1 text comments to utf-8
drivers/gpu/drm/gma500/: change return type to vm_fault_t
docs/core-api: mm-api: add section about GFP flags
docs/mm: make GFP flags descriptions usable as kernel-doc
docs/core-api: split memory management API to a separate file
docs/core-api: move *{str,mem}dup* to "String Manipulation"
docs/core-api: kill trailing whitespace in kernel-api.rst
mm/util: add kernel-doc for kvfree
mm/util: make strndup_user description a kernel-doc comment
fs/proc/vmcore.c: hide vmcoredd_mmap_dumps() for nommu builds
treewide: correct "differenciate" and "instanciate" typos
fs/afs: use new return type vm_fault_t
drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t
mm: soft-offline: close the race against page allocation
mm: fix race on soft-offlining free huge pages
namei: allow restricted O_CREAT of FIFOs and regular files
hfs: prevent crash on exit from failed search
...
Almost all files in the kernel are either plain text or UTF-8 encoded. A
couple however are ISO_8859-1, usually just a few characters in a C
comments, for historic reasons.
This converts them all to UTF-8 for consistency.
Link: http://lkml.kernel.org/r/20180724111600.4158975-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Simon Horman <horms@verge.net.au> [IPVS portion]
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [IIO]
Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc]
Acked-by: Rob Herring <robh@kernel.org>
Cc: Joe Perches <joe@perches.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stable bufixes:
- v3.17+: Fix an off-by-one in bl_map_stripe()
- v4.9+: NFSv4 client live hangs after live data migration recovery
- v4.18+: xprtrdma: Fix disconnect regression
- v4.14+: Fix locking in pnfs_generic_recover_commit_reqs
- v4.9+: Fix a sleep in atomic context in nfs4_callback_sequence()
Features:
- Add support for asynchronous server-side COPY operations
Other bugfixes and cleanups:
- Optitmizations and fixes involving NFS v4.1 / pNFS layout handling
- Optimize lseek(fd, SEEK_CUR, 0) on directories to avoid locking
- Immediately reschedule writeback when the server replies with an error
- Fix excessive attribute revalidation in nfs_execute_ok()
- Add error checking to nfs_idmap_prepare_message()
- Use new vm_fault_t return type
- Return a delegation when reclaiming one that the server has recalled
- Referrals should inherit proto setting from parents
- Make rpc_auth_create_args a const
- Improvements to rpc_iostats tracking
- Fix a potential reference leak when there is an error processing a callback
- Fix rmdir / mkdir / rename nlink accounting
- Fix updating inode change attribute
- Fix error handling in nfsn4_sp4_select_mode()
- Use an appropriate work queue for direct-write completion
- Don't busy wait if NFSv4 session draining is interrupted
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Merge tag 'nfs-for-4.19-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client updates from Anna Schumaker:
"These patches include adding async support for the v4.2 COPY
operation. I think Bruce is planning to send the server patches for
the next release, but I figured we could get the client side out of
the way now since it's been in my tree for a while. This shouldn't
cause any problems, since the server will still respond with
synchronous copies even if the client requests async.
Features:
- Add support for asynchronous server-side COPY operations
Stable bufixes:
- Fix an off-by-one in bl_map_stripe() (v3.17+)
- NFSv4 client live hangs after live data migration recovery (v4.9+)
- xprtrdma: Fix disconnect regression (v4.18+)
- Fix locking in pnfs_generic_recover_commit_reqs (v4.14+)
- Fix a sleep in atomic context in nfs4_callback_sequence() (v4.9+)
Other bugfixes and cleanups:
- Optimizations and fixes involving NFS v4.1 / pNFS layout handling
- Optimize lseek(fd, SEEK_CUR, 0) on directories to avoid locking
- Immediately reschedule writeback when the server replies with an
error
- Fix excessive attribute revalidation in nfs_execute_ok()
- Add error checking to nfs_idmap_prepare_message()
- Use new vm_fault_t return type
- Return a delegation when reclaiming one that the server has
recalled
- Referrals should inherit proto setting from parents
- Make rpc_auth_create_args a const
- Improvements to rpc_iostats tracking
- Fix a potential reference leak when there is an error processing a
callback
- Fix rmdir / mkdir / rename nlink accounting
- Fix updating inode change attribute
- Fix error handling in nfsn4_sp4_select_mode()
- Use an appropriate work queue for direct-write completion
- Don't busy wait if NFSv4 session draining is interrupted"
* tag 'nfs-for-4.19-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (54 commits)
pNFS: Remove unwanted optimisation of layoutget
pNFS/flexfiles: ff_layout_pg_init_read should exit on error
pNFS: Treat RECALLCONFLICT like DELAY...
pNFS: When updating the stateid in layoutreturn, also update the recall range
NFSv4: Fix a sleep in atomic context in nfs4_callback_sequence()
NFSv4: Fix locking in pnfs_generic_recover_commit_reqs
NFSv4: Fix a typo in nfs4_init_channel_attrs()
NFSv4: Don't busy wait if NFSv4 session draining is interrupted
NFS recover from destination server reboot for copies
NFS add a simple sync nfs4_proc_commit after async COPY
NFS handle COPY ERR_OFFLOAD_NO_REQS
NFS send OFFLOAD_CANCEL when COPY killed
NFS export nfs4_async_handle_error
NFS handle COPY reply CB_OFFLOAD call race
NFS add support for asynchronous COPY
NFS COPY xdr handle async reply
NFS OFFLOAD_CANCEL xdr
NFS CB_OFFLOAD xdr
NFS: Use an appropriate work queue for direct-write completion
NFSv4: Fix error handling in nfs4_sp4_select_mode()
...
missing Chuck's fixes for the problem with callbacks over GSS from
multi-homed servers, and a smaller fix from Laura Abbott.
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Merge tag 'nfsd-4.19-1' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"Chuck Lever fixed a problem with NFSv4.0 callbacks over GSS from
multi-homed servers.
The only new feature is a minor bit of protocol (change_attr_type)
which the client doesn't even use yet.
Other than that, various bugfixes and cleanup"
* tag 'nfsd-4.19-1' of git://linux-nfs.org/~bfields/linux: (27 commits)
sunrpc: Add comment defining gssd upcall API keywords
nfsd: Remove callback_cred
nfsd: Use correct credential for NFSv4.0 callback with GSS
sunrpc: Extract target name into svc_cred
sunrpc: Enable the kernel to specify the hostname part of service principals
sunrpc: Don't use stack buffer with scatterlist
rpc: remove unneeded variable 'ret' in rdma_listen_handler
nfsd: use true and false for boolean values
nfsd: constify write_op[]
fs/nfsd: Delete invalid assignment statements in nfsd4_decode_exchange_id
NFSD: Handle full-length symlinks
NFSD: Refactor the generic write vector fill helper
svcrdma: Clean up Read chunk path
svcrdma: Avoid releasing a page in svc_xprt_release()
nfsd: Mark expected switch fall-through
sunrpc: remove redundant variables 'checksumlen','blocksize' and 'data'
nfsd: fix leaked file lock with nfs exported overlayfs
nfsd: don't advertise a SCSI layout for an unsupported request_queue
nfsd: fix corrupted reply to badly ordered compound
nfsd: clarify check_op_ordering
...
- Switch SMC over to rdma_get_gid_attr and remove the compat
- Fix a crash in HFI1 with some BIOS's
- Fix a randconfig failure
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull more rdma updates from Jason Gunthorpe:
"This is the SMC cleanup promised, a randconfig regression fix, and
kernel oops fix.
Summary:
- Switch SMC over to rdma_get_gid_attr and remove the compat
- Fix a crash in HFI1 with some BIOS's
- Fix a randconfig failure"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
IB/ucm: fix UCM link error
IB/hfi1: Invalid NUMA node information can cause a divide by zero
RDMA/smc: Replace ib_query_gid with rdma_get_gid_attr
During review, it was found that the target, service, and srchost
keywords are easily conflated. Add an explainer.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
NFSv4.0 callback needs to know the GSS target name the client used
when it established its lease. That information is available from
the GSS context created by gssproxy. Make it available in each
svc_cred.
Note this will also give us access to the real target service
principal name (which is typically "nfs", but spec does not require
that).
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
A multi-homed NFS server may have more than one "nfs" key in its
keytab. Enable the kernel to pick the key it wants as a machine
credential when establishing a GSS context.
This is useful for GSS-protected NFSv4.0 callbacks, which are
required by RFC 7530 S3.3.3 to use the same principal as the service
principal the client used when establishing its lease.
A complementary modification to rpc.gssd is required to fully enable
this feature.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
basic support for rbd images within namespaces (myself). Also included
y2038 conversion patches from Arnd, a pile of miscellaneous fixes from
Chengguang and Zheng's feature bit infrastructure for the filesystem.
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Merge tag 'ceph-for-4.19-rc1' of git://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"The main things are support for cephx v2 authentication protocol and
basic support for rbd images within namespaces (myself).
Also included are y2038 conversion patches from Arnd, a pile of
miscellaneous fixes from Chengguang and Zheng's feature bit
infrastructure for the filesystem"
* tag 'ceph-for-4.19-rc1' of git://github.com/ceph/ceph-client: (40 commits)
ceph: don't drop message if it contains more data than expected
ceph: support cephfs' own feature bits
crush: fix using plain integer as NULL warning
libceph: remove unnecessary non NULL check for request_key
ceph: refactor error handling code in ceph_reserve_caps()
ceph: refactor ceph_unreserve_caps()
ceph: change to void return type for __do_request()
ceph: compare fsc->max_file_size and inode->i_size for max file size limit
ceph: add additional size check in ceph_setattr()
ceph: add additional offset check in ceph_write_iter()
ceph: add additional range check in ceph_fallocate()
ceph: add new field max_file_size in ceph_fs_client
libceph: weaken sizeof check in ceph_x_verify_authorizer_reply()
libceph: check authorizer reply/challenge length before reading
libceph: implement CEPHX_V2 calculation mode
libceph: add authorizer challenge
libceph: factor out encrypt_authorizer()
libceph: factor out __ceph_x_decrypt()
libceph: factor out __prepare_write_connect()
libceph: store ceph_auth_handshake pointer in ceph_connection
...
Pull networking fixes from David Miller:
1) Fix races in IPVS, from Tan Hu.
2) Missing unbind in matchall classifier, from Hangbin Liu.
3) Missing act_ife action release, from Vlad Buslov.
4) Cure lockdep splats in ila, from Cong Wang.
5) veth queue leak on link delete, from Toshiaki Makita.
6) Disable isdn's IIOCDBGVAR ioctl, it exposes kernel addresses. From
Kees Cook.
7) RCU usage fixup in XDP, from Tariq Toukan.
8) Two TCP ULP fixes from Daniel Borkmann.
9) r8169 needs REALTEK_PHY as a Kconfig dependency, from Heiner
Kallweit.
10) Always take tcf_lock with BH disabled, otherwise we can deadlock
with rate estimator code paths. From Vlad Buslov.
11) Don't use MSI-X on RTL8106e r8169 chips, they don't resume properly.
From Jian-Hong Pan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
ip6_vti: fix creating fallback tunnel device for vti6
ip_vti: fix a null pointer deferrence when create vti fallback tunnel
r8169: don't use MSI-X on RTL8106e
net: lan743x_ptp: convert to ktime_get_clocktai_ts64
net: sched: always disable bh when taking tcf_lock
ip6_vti: simplify stats handling in vti6_xmit
bpf: fix redirect to map under tail calls
r8169: add missing Kconfig dependency
tools/bpf: fix bpf selftest test_cgroup_storage failure
bpf, sockmap: fix sock_map_ctx_update_elem race with exist/noexist
bpf, sockmap: fix map elem deletion race with smap_stop_sock
bpf, sockmap: fix leakage of smap_psock_map_entry
tcp, ulp: fix leftover icsk_ulp_ops preventing sock from reattach
tcp, ulp: add alias for all ulp modules
bpf: fix a rcu usage warning in bpf_prog_array_copy_core()
samples/bpf: all XDP samples should unload xdp/bpf prog on SIGTERM
net/xdp: Fix suspicious RCU usage warning
net/mlx5e: Delete unneeded function argument
Documentation: networking: ti-cpsw: correct cbs parameters for Eth1 100Mb
isdn: Disable IIOCDBGVAR
...
When set fb_tunnels_only_for_init_net to 1, don't create fallback tunnel
device for vti6 when a new namespace is created.
Tested:
[root@builder2 ~]# modprobe ip6_tunnel
[root@builder2 ~]# modprobe ip6_vti
[root@builder2 ~]# echo 1 > /proc/sys/net/core/fb_tunnels_only_for_init_net
[root@builder2 ~]# unshare -n
[root@builder2 ~]# ip link
1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN mode DEFAULT group
default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Same as ip_vti, use iptunnel_xmit_stats to updates stats in tunnel xmit
code path.
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann says:
====================
pull-request: bpf 2018-08-18
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a BPF selftest failure in test_cgroup_storage due to rlimit
restrictions, from Yonghong.
2) Fix a suspicious RCU rcu_dereference_check() warning triggered
from removing a device's XDP memory allocator by using the correct
rhashtable lookup function, from Tariq.
3) A batch of BPF sockmap and ULP fixes mainly fixing leaks and races
as well as enforcing module aliases for ULPs. Another fix for BPF
map redirect to make them work again with tail calls, from Daniel.
4) Fix XDP BPF samples to unload their programs upon SIGTERM, from Jesper.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter/IPVS fixes for your net tree:
1) Infinite loop in IPVS when net namespace is released, from
Tan Hu.
2) Do not show negative timeouts in ip_vs_conn by using the new
jiffies_delta_to_msecs(), patches from Matteo Croce.
3) Set F_IFACE flag for linklocal addresses in ip6t_rpfilter,
from Florian Westphal.
4) Fix overflow in set size allocation, from Taehee Yoo.
5) Use netlink_dump_start() from ctnetlink to fix memleak from
the error path, again from Florian.
6) Register nfnetlink_subsys in last place, otherwise netns
init path may lose race and see net->nft uninitialized data.
This also reverts previous attempt to fix this by increase
netns refcount, patches from Florian.
7) Remove conntrack entries on layer 4 protocol tracker module
removal, from Florian.
8) Use GFP_KERNEL_ACCOUNT for xtables blob allocation, from
Michal Hocko.
9) Get tproxy documentation in sync with existing codebase,
from Mate Eckl.
10) Honor preset layer 3 protocol via ctx->family in the new nft_ct
timeout infrastructure, from Harsha Sharma.
11) Let uapi nfnetlink_osf.h compile standalone with no errors,
from Dmitry V. Levin.
12) Missing braces compilation warning in nft_tproxy, patch from
Mate Eclk.
13) Disregard bogus check to bail out on non-anonymous sets from
the dynamic set update extension.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This tag is the same as 9p-for-4.19 without the two MAINTAINERS patches
Contains mostly fixes (6 to be backported to stable) and a few changes,
here is the breakdown:
* Rework how fids are attributed by replacing some custom tracking in a
list by an idr (f28cdf0430)
* For packet-based transports (virtio/rdma) validate that the packet
length matches what the header says (f984579a01)
* A few race condition fixes found by syzkaller (9f476d7c54,
430ac66eb4)
* Missing argument check when NULL device is passed in sys_mount
(10aa14527f)
* A few virtio fixes (23cba9cbde, 31934da810, d28c756cae)
* Some spelling and style fixes
----------------------------------------------------------------
Chirantan Ekbote (1):
9p/net: Fix zero-copy path in the 9p virtio transport
Colin Ian King (1):
fs/9p/v9fs.c: fix spelling mistake "Uknown" -> "Unknown"
Jean-Philippe Brucker (1):
net/9p: fix error path of p9_virtio_probe
Matthew Wilcox (4):
9p: Fix comment on smp_wmb
9p: Change p9_fid_create calling convention
9p: Replace the fidlist with an IDR
9p: Embed wait_queue_head into p9_req_t
Souptick Joarder (1):
fs/9p/vfs_file.c: use new return type vm_fault_t
Stephen Hemminger (1):
9p: fix whitespace issues
Tomas Bortoli (5):
net/9p/client.c: version pointer uninitialized
net/9p/trans_fd.c: fix race-condition by flushing workqueue before the kfree()
net/9p/trans_fd.c: fix race by holding the lock
9p: validate PDU length
9p: fix multiple NULL-pointer-dereferences
jiangyiwen (2):
net/9p/virtio: Fix hard lockup in req_done
9p/virtio: fix off-by-one error in sg list bounds check
piaojun (5):
net/9p/client.c: add missing '\n' at the end of p9_debug()
9p/net/protocol.c: return -ENOMEM when kmalloc() failed
net/9p/trans_virtio.c: fix some spell mistakes in comments
fs/9p/xattr.c: catch the error of p9_client_clunk when setting xattr failed
net/9p/trans_virtio.c: add null terminal for mount tag
fs/9p/v9fs.c | 2 +-
fs/9p/vfs_file.c | 2 +-
fs/9p/xattr.c | 6 ++++--
include/net/9p/client.h | 11 ++++-------
net/9p/client.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++++-------------------------------------------------------------------
net/9p/protocol.c | 2 +-
net/9p/trans_fd.c | 22 +++++++++++++++-------
net/9p/trans_rdma.c | 4 ++++
net/9p/trans_virtio.c | 66 +++++++++++++++++++++++++++++++++++++---------------------------
net/9p/trans_xen.c | 3 +++
net/9p/util.c | 1 -
12 files changed, 122 insertions(+), 116 deletions(-)
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Merge tag '9p-for-4.19-2' of git://github.com/martinetd/linux
Pull 9p updates from Dominique Martinet:
"This contains mostly fixes (6 to be backported to stable) and a few
changes, here is the breakdown:
- rework how fids are attributed by replacing some custom tracking in
a list by an idr
- for packet-based transports (virtio/rdma) validate that the packet
length matches what the header says
- a few race condition fixes found by syzkaller
- missing argument check when NULL device is passed in sys_mount
- a few virtio fixes
- some spelling and style fixes"
* tag '9p-for-4.19-2' of git://github.com/martinetd/linux: (21 commits)
net/9p/trans_virtio.c: add null terminal for mount tag
9p/virtio: fix off-by-one error in sg list bounds check
9p: fix whitespace issues
9p: fix multiple NULL-pointer-dereferences
fs/9p/xattr.c: catch the error of p9_client_clunk when setting xattr failed
9p: validate PDU length
net/9p/trans_fd.c: fix race by holding the lock
net/9p/trans_fd.c: fix race-condition by flushing workqueue before the kfree()
net/9p/virtio: Fix hard lockup in req_done
net/9p/trans_virtio.c: fix some spell mistakes in comments
9p/net: Fix zero-copy path in the 9p virtio transport
9p: Embed wait_queue_head into p9_req_t
9p: Replace the fidlist with an IDR
9p: Change p9_fid_create calling convention
9p: Fix comment on smp_wmb
net/9p/client.c: version pointer uninitialized
fs/9p/v9fs.c: fix spelling mistake "Uknown" -> "Unknown"
net/9p: fix error path of p9_virtio_probe
9p/net/protocol.c: return -ENOMEM when kmalloc() failed
net/9p/client.c: add missing '\n' at the end of p9_debug()
...
Commits 109980b894 ("bpf: don't select potentially stale ri->map
from buggy xdp progs") and 7c30013133 ("bpf: fix ri->map_owner
pointer on bpf_prog_realloc") tried to mitigate that buggy programs
using bpf_redirect_map() helper call do not leave stale maps behind.
Idea was to add a map_owner cookie into the per CPU struct redirect_info
which was set to prog->aux by the prog making the helper call as a
proof that the map is not stale since the prog is implicitly holding
a reference to it. This owner cookie could later on get compared with
the program calling into BPF whether they match and therefore the
redirect could proceed with processing the map safely.
In (obvious) hindsight, this approach breaks down when tail calls are
involved since the original caller's prog->aux pointer does not have
to match the one from one of the progs out of the tail call chain,
and therefore the xdp buffer will be dropped instead of redirected.
A way around that would be to fix the issue differently (which also
allows to remove related work in fast path at the same time): once
the life-time of a redirect map has come to its end we use it's map
free callback where we need to wait on synchronize_rcu() for current
outstanding xdp buffers and remove such a map pointer from the
redirect info if found to be present. At that time no program is
using this map anymore so we simply invalidate the map pointers to
NULL iff they previously pointed to that instance while making sure
that the redirect path only reads out the map once.
Fixes: 97f91a7cf0 ("bpf: add bpf_redirect_map helper routine")
Fixes: 109980b894 ("bpf: don't select potentially stale ri->map from buggy xdp progs")
Reported-by: Sebastiano Miano <sebastiano.miano@polito.it>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
All RDMA ULPs should be using rdma_get_gid_attr instead of
ib_query_gid. Convert SMC to use the new API.
In the process correct some confusion with gid_type - if attr->ndev is
!NULL then gid_type can never be IB_GID_TYPE_IB by
definition. IB_GID_TYPE_ROCE shares the same enum value and is probably
what was intended here.
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
I found that in BPF sockmap programs once we either delete a socket
from the map or we updated a map slot and the old socket was purged
from the map that these socket can never get reattached into a map
even though their related psock has been dropped entirely at that
point.
Reason is that tcp_cleanup_ulp() leaves the old icsk->icsk_ulp_ops
intact, so that on the next tcp_set_ulp_id() the kernel returns an
-EEXIST thinking there is still some active ULP attached.
BPF sockmap is the only one that has this issue as the other user,
kTLS, only calls tcp_cleanup_ulp() from tcp_v4_destroy_sock() whereas
sockmap semantics allow dropping the socket from the map with all
related psock state being cleaned up.
Fixes: 1aa12bdf1b ("bpf: sockmap, add sock close() hook to remove socks")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Lets not turn the TCP ULP lookup into an arbitrary module loader as
we only intend to load ULP modules through this mechanism, not other
unrelated kernel modules:
[root@bar]# cat foo.c
#include <sys/types.h>
#include <sys/socket.h>
#include <linux/tcp.h>
#include <linux/in.h>
int main(void)
{
int sock = socket(PF_INET, SOCK_STREAM, 0);
setsockopt(sock, IPPROTO_TCP, TCP_ULP, "sctp", sizeof("sctp"));
return 0;
}
[root@bar]# gcc foo.c -O2 -Wall
[root@bar]# lsmod | grep sctp
[root@bar]# ./a.out
[root@bar]# lsmod | grep sctp
sctp 1077248 4
libcrc32c 16384 3 nf_conntrack,nf_nat,sctp
[root@bar]#
Fix it by adding module alias to TCP ULP modules, so probing module
via request_module() will be limited to tcp-ulp-[name]. The existing
modules like kTLS will load fine given tcp-ulp-tls alias, but others
will fail to load:
[root@bar]# lsmod | grep sctp
[root@bar]# ./a.out
[root@bar]# lsmod | grep sctp
[root@bar]#
Sockmap is not affected from this since it's either built-in or not.
Fixes: 734942cc4e ("tcp: ULP infrastructure")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
rdma.git merge resolution for the 4.19 merge window
Conflicts:
drivers/infiniband/core/rdma_core.c
- Use the rdma code and revise with the new spelling for
atomic_fetch_add_unless
drivers/nvme/host/rdma.c
- Replace max_sge with max_send_sge in new blk code
drivers/nvme/target/rdma.c
- Use the blk code and revise to use NULL for ib_post_recv when
appropriate
- Replace max_sge with max_recv_sge in new blk code
net/rds/ib_send.c
- Use the net code and revise to use NULL for ib_post_recv when
appropriate
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This reverts commit ddb457c699.
The include rdma/ib_cache.h is kept, and we have to add a memset
to the compat wrapper to avoid compiler warnings in gcc-7
This revert is done to avoid extensive merge conflicts with SMC
changes in netdev during the 4.19 merge window.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Action init API was changed to always take reference to action, even when
overwriting existing action. Substitute conditional action release, which
was executed only if action is newly created, with unconditional release in
tcf_ife_init() error handling code to prevent double free or memory leak in
case of overwrite.
Fixes: 4e8ddd7f17 ("net: sched: don't release reference on action overwrite")
Reported-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'v4.18' into rdma.git for-next
Resolve merge conflicts from the -rc cycle against the rdma.git tree:
Conflicts:
drivers/infiniband/core/uverbs_cmd.c
- New ifs added to ib_uverbs_ex_create_flow in -rc and for-next
- Merge removal of file->ucontext in for-next with new code in -rc
drivers/infiniband/core/uverbs_main.c
- for-next removed code from ib_uverbs_write() that was modified
in for-rc
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Fix tcf_unbind_filter missing in cls_matchall as this will trigger
WARN_ON() in cbq_destroy_class().
Fixes: fd62d9f5c5 ("net/sched: matchall: Fix configuration race")
Reported-by: Li Shuang <shuali@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes a warning reported by the kbuild test robot (from linux-next
tree):
net/netfilter/nft_tproxy.c: In function 'nft_tproxy_eval_v6':
>> net/netfilter/nft_tproxy.c:85:9: warning: missing braces around initializer [-Wmissing-braces]
struct in6_addr taddr = {0};
^
net/netfilter/nft_tproxy.c:85:9: warning: (near initialization for 'taddr.in6_u') [-Wmissing-braces]
This warning is actually caused by a gcc bug already resolved in newer
versions (kbuild used 4.9) so this kind of initialization is omitted and
memset is used instead.
Fixes: 4ed8eb6570 ("netfilter: nf_tables: Add native tproxy support")
Signed-off-by: Máté Eckl <ecklm94@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
