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There is a comment in drivers/input/evdev.c which says:
/* EV_SYN==0 is EV_CNT, _not_ SYN_CNT, see EVIOCGBIT */
That is, EVIOCGBIT(0, ...) should return a bit mask with supported
event types instead of SYN_* event codes.
* defs.h (evdev_ev): New prototype.
* evdev.c: Include "xlat/evdev_ev.h" and remove "xlat/evdev_sync.h".
(bit_ioctl) <case EV_SYN>: Replace EV_SYN with 0, use evdev_ev
with XT_SORTED in decode_bitset invocation instead.
* ioctl.c: Do not include "xlat/evdev_ev.h".
(evdev_decode_number): Print nr == 0x20 as "0" instead of "EV_SYN".
* tests/ioctl_evdev.c (main): Use 0 instead of EV_SYN in EVIOCGBIT
output.
* xlat/evdev_sync.in: Remove.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
Fixes: v4.10~89 "Add decoding for evdev ioctls"
xlat/kvm_cap.in has been generated using the following command line:
grep '#define\s\+KVM_CAP' $linux/include/uapi/linux/kvm.h |
sed -E -e 's/^#define\s+([^ \t]+)\s*([0-9]+).*$/printf "%-40s%s\n" \1 \2/e' \
-e 's/ {8}/\t/g; s/ +/\t/g'
* xlat/kvm_cap.in: New file.
* kvm.c: Include "xlat/kvm_cap.h".
(kvm_ioctl_decode_check_extension): New function.
(kvm_ioctl): Use it.
* tests/ioctl_kvm_run_common.c (main): Check decoding
of KVM_CHECK_EXTENSION command.
Signed-off-by: Pierre Marsais <pierre.marsais@lse.epita.fr>
Linux kernel commit v4.18-rc2-106-g421860b9d47053badce4b247576fa48df9ab4c48
has changed the value of V4L2_CID_USER_IMX_BASE constant introduced
by commit v4.13-rc1~141^2~121 because the old value was already used
by V4L2_CID_USER_MAX217X_BASE.
This is of course an ABI breakage that affects Linux kernels starting
with 4.13 and up to 4.18, as well as their LTS derivatives.
Since the imx driver didn't provide any public control ID definitions,
it looks like the best way to handle this situation is to pretend that
the old value of V4L2_CID_USER_IMX_BASE didn't exist.
* xlat/v4l2_control_id_bases.in (V4L2_CID_USER_IMX_BASE): Redefine.
Co-Authored-by: Eugene Syromyatnikov <evgsyr@gmail.com>
* xlat/open_mode_flags.in: Regenerate using maint/gen_xlat_defs.sh script
to provide fallback definitions. Implement a workaround for O_NDELAY.
Co-Authored-by: Co-Authored-by: Eugene Syromyatnikov <evgsyr@gmail.com>
* xlat/madvise_cmds.in: Regenerate using maint/gen_xlat_defs.sh script
to provide fallback definitions.
Co-Authored-by: Eugene Syromyatnikov <evgsyr@gmail.com>
* xlat/mmap_flags.in: Regenerate using maint/gen_xlat_defs.sh script
to provide fallback definitions. Implement a workaround for MAP_RENAME.
Co-Authored-by: Eugene Syromyatnikov <evgsyr@gmail.com>
* xlat/rtnl_ifla_brport_attrs.in: Add IFLA_BRPORT_GROUP_FWD_MASK
constant introduced by Linux kernel commit v4.15-rc1~84^2~607.
Add IFLA_BRPORT_NEIGH_SUPPRESS constant introduced by Linux kernel
commit v4.15-rc1~84^2~523^2~2.
Add IFLA_BRPORT_ISOLATED constant introduced by Linux kernel commit
v4.18-rc1~114^2~142.
* xlat/bpf_attach_type.in (BPF_CGROUP_UDP4_SENDMSG,
BPF_CGROUP_UDP6_SENDMSG): New constant, introduced by Linux commit
v4.18-rc1~114^2~9^2~20^2~4.
(BPF_LIRC_MODE2): New constant, introduced by Linux commit
v4.18-rc1~114^2~9^2~15^2~1.
* xlat/bpf_commands.in (BPF_BTF_LOAD): New constant, introduced by Linux
commit v4.18-rc1~114^2~417^2~1^2~5.
(BPF_BTF_GET_FD_BY_ID): New constant, introduced by Linux commit
v4.18-rc1~114^2~223^2~21^2~4.
(BPF_TASK_FD_QUERY): New constant, introduced by Linux commit
v4.18-rc1~114^2~148^2~1^2~5.
* xlat/bpf_map_types.in (BPF_MAP_TYPE_XSKMAP): New constant, introduced
by Linux commit v4.18-rc1~114^2~304^2~4^2~8.
(BPF_MAP_TYPE_SOCKHASH): New constant, introduced by Linux commit
v4.18-rc1~114^2~223^2~5^2~2.
* xlat/bpf_prog_types.in (BPF_PROG_TYPE_LWT_SEG6LOCAL): New constant,
introduced by Linux commit v4.18-rc1~114^2~148^2~2^2~1.
(BPF_PROG_TYPE_LIRC_MODE2): New constant, introduced by Linux commit
v4.18-rc1~114^2~9^2~15^2~1.
* tests/bpf.c: Update expected output.
In KVM, a virtual machine implementation like Qemu can access a vcpu
via ioctl. KVM_RUN is an ioctl command to enter vcpu. The command
returns control for various reasons: needs of device emulation or
consuming time slices are the typical ones. The vmi takes a different
action for the reason.
We, strace users, want to know the reason to understand kvm. This
change prints the reason as auxstr if "-e kvm=vcpu" option is given,
and if strace runs on Linux 4.16.0 or higher, which includes commit
e46b469278a59781f9b25ff608af84892963821b, "kvm: embed vcpu id to dentry
of vcpu anon inode."
The way to get the reason is a bit complicated because the ioctl does
not return it to the userspace directly. Instead, the vmi and kvm
communicate via an area of the process virtual memory where the fd of
vcpu is mmap'ed. strace must peek the area to know the reason.
The change does three things: (1) recording the area for the given vcpu
when the target calls VCPU_CREATE to vcpu_info_list per tcb data field,
(2) verifying the data recorded in vcpu_info_list before doing (3), and
(3) decoding the exit reason field of the area.
The change is complicated because there is a case that strace
does not have a chance to do (1) if -p option is used.
In this case, vcpu_info data created in the step (2).
The area has more fields than "exit reason",
dumping them may be implemented in the future.
* defs.h (struct tcb) [HAVE_LINUX_KVM_H]: Add vcpu_info_list field.
[HAVE_LINUX_KVM_H]: (kvm_run_structure_decoder_init,
kvm_vcpu_info_free): New declarations.
* strace.c (usage): Add "kvm" as a new expression for -e option.
(droptcb): Call kvm_vcpu_info_free.
* filter_qualify.c (qualify_kvm): New function calling
kvm_run_structure_decoder_init to enable for attaching the exit
reason to auxstr.
(qual_options): Add "kvm" as an entry.
* xlat/kvm_exit_reason.in: New file.
* kvm.c: Include xmalloc.h and mmap_cache.h.
(dump_kvm_run_structure): New static variable.
(kvm_run_structure_decoder_init): New function.
(vcpu_info): New struct definition representing the 3-tuple: vcpu file
descriptor, id of the vcpu, and mmap'ed entry.
(vcpu_find, vcpu_alloc, vcpu_register, vcpu_getinfo,
kvm_vcpu_info_free): New functions to access tcb's vcpu_info_list
field and vcpu_info data type.
(is_map_for_file, map_len): New helper functions.
(kvm_ioclt_run_attach_auxstr, kvm_ioctl_decode_run): New functions
decoding vcpu exit reason and attaching the decoded data to auxstr
field of tcb.
(kvm_ioctl_create_vcpu): Call vcpu_register to make an entry mapping
a file descriptor and the vcpu id associated with the fd.
(kvm_ioctl): Call kvm_ioctl_decode_run.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
* xlat/aio_cmds.in: New file.
* aio.c (tprint_lio_opcode): Change array of structs "cmds" to array of
enums "subs", use printxval_indexn_ex for printing cmd, return sub type
using subs array.
* xlat/sock_tcp_options.in (TCP_ZEROCOPY_RECEIVE): New constant,
introduced by Linux commit v4.18-rc1~114^2~351^2~1.
(TCP_INQ): New constant, introduced by Linux commit v4.18-rc1~114^2~330.
* xlat/rtnl_ifla_info_data_tun_attrs.in: New file.
* xlat/tun_device_types.in: Likewise.
* rtnl_link.c: Include xlat/rtnl_ifla_info_data_tun_attrs.h and
xlat/tun_device_types.h.
(decode_nla_tun_type, decode_nla_linkinfo_data_tun): New functions.
(ifla_info_data_tun_nla_decoders): New decoder dispatcher table.
(decode_nla_linkinfo_data): Use decode_nla_linkinfo_data_tun if kind
is
"tun".
* xlat/rtnl_ifla_info_data_bridge_attrs.in: New file.
* rtnl_link.c: Include xlat/rtnl_ifla_info_data_bridge_attrs.h.
(ifla_info_data_bridge_nla_decoders): New decoder dispatcher table.
(decode_nla_linkinfo_data_bridge, decode_nla_linkinfo_data): New
functions.
(ifla_linkinfo_nla_decoders) <IFLA_INFO_DATA>: Use
decode_nla_linkinfo_data as a decoder.
Extend xlat generator to support such input lines as
IPV4_DEVCONF_FORWARDING-1 0
This is going to be used later in IFLA_AF_SPEC decoding.
* xlat/gen.sh (cond_def): If the xlat value is not an identifier name,
extract an identifier name from the beginning of xlat value.
Those are used for describing input device category and not specific
button.
Reported by clang.
* xlat/evdev_keycode.in (BTN_MOUSE, BTN_JOYSTICK, BTN_GAMEPAD, BTN_DIGI,
BTN_WHEEL, BTN_TRIGGER_HAPPY): Remove.
* xlat/netlink_sk_meminfo_indices.in: New file.
* nlattr.c: Include xlat/netlink_sk_meminfo_indices.h.
(decode_nla_meminfo): Use print_array_ex, pass
netlink_sk_meminfo_indices as index xlat table.
* tests/nlattr_inet_diag_msg.c: Update expected output.
* xlat/ebpf_regs.in: New file.
* bpf.c (struct ebpf_insn, struct ebpf_insns_data): New type definitions.
(print_ebpf_insn, print_ebpf_prog): New functions.
(DEF_BPF_CMD_DECODER(BPF_PROG_LOAD)): Use them.
* xlat/inet_protocols.in (IPPROTO_GGP, IPPROTO_HELLO, IPPROTO_ND):
Remove, not defined in Linux.
(IPPROTO_BEETPH): New constant, introduced by Linux commit
v2.6.19-rc1~33^2.
(IPPROTO_L2TP): New constant, introduced by Linux commit
v2.6.35-rc1~473^2~594.
(IPPROTO_MH): New constant, introduced by Linux commit
v2.6.19-rc1~1272^2~157.
Add default values to constants, sort the file.
* xlat/bpf_attach_type.in (BPF_SK_MSG_VERDICT): New constant,
introduced by Linux commit v4.17-rc1~148^2~156^2~1^2~13.
(BPF_CGROUP_INET4_BIND, BPF_CGROUP_INET6_BIND): New constants,
introduced by Linux commit v4.17-rc1~148^2~19^2^2~6.
(BPF_CGROUP_INET4_CONNECT, BPF_CGROUP_INET6_CONNECT): New constants,
introduced by Linux commit v4.17-rc1~148^2~19^2^2~3.
(BPF_CGROUP_INET4_POST_BIND, BPF_CGROUP_INET6_POST_BIND): New constants,
introduced by Linux commit v4.17-rc1~148^2~19^2^2~1.
* tests/bpf.c (BPF_PROG_QUERY_checks): Update expected output.
Define SO_TIMESTAMP twice, for PA-RISC and all the other architectures.
* xlat/sock_rds_options.in [!__hppa__] (SO_TIMESTAMP): Define to 29.
[__hppa__] (SO_TIMESTAMP): Define to 0x4012.
* net.c (print_sockopt_fd_level_name) <case SOL_RDS>: Use
printxval_search instead of printxval.
* xlat/bluetooth_l2_cid.in: New file.
* sockaddr.c: Include xlat/bluetooth_l2_cid.h.
(print_bluetooth_l2_cid): New function.
(print_sockaddr_data_bt): Use it to decode struct sockaddr_l2.l2_cid
field.
* tests/net-sockaddr.c (check_l2): Update expected output.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
* xlat/bluetooth_l2_psm.in: New file.
* sockaddr.c: Include xlat/bluetooth_l2_psm.h.
(print_bluetooth_l2_psm): New function.
(print_sockaddr_data_bt): Use it to decode struct sockaddr_l2.l2_psm
field.
* tests/net-sockaddr.c (check_l2): Update expected output.
* xlat/bdaddr_types.in: New file.
* sockaddr.c: Include xlat/bdaddr_types.h.
(print_sockaddr_data_bt): Decode struct sockaddr_l2.l2_bdaddr_type field
using constants from bdaddr_types xlat.
* tests/net-sockaddr.c (check_l2): Check decoding
of struct sockaddr_l2.l2_bdaddr_type field.
