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2022-01-27linux-user: Fix inotify on aarch64Paul Brook
The inotify implementation originally called the raw host syscalls. Commit 3b3f24add0 changed this to use the glibc wrappers. However ifdefs in syscall.c still test for presence of the raw syscalls. This causes a problem on e.g. aarch64 hosts which never had the inotify_init syscall - it had been obsoleted by inotify_init1 before aarch64 was invented! However it does have a perfectly good glibc implementation of inotify_wait. Fix this by removing all the raw __NR_inotify_* tests, and instead check CONFIG_INOTIFY, which already tests for the glibc functionality we use. Also remove the now-pointless sys_inotify* wrappers. Tested using x86-64 inotifywatch on aarch64 host, and vice-versa Signed-off-by: Paul Brook <paul@nowt.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20220126202636.655289-1-paul@nowt.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: netlink: update IFLA_BRPORT entriesLaurent Vivier
add IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT and IFLA_BRPORT_MCAST_EHT_HOSTS_CNT # QEMU_LOG=unimp ip a Unknown QEMU_IFLA_BRPORT type 37 Unknown QEMU_IFLA_BRPORT type 38 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211219154514.2165728-3-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: netlink: Add IFLA_VFINFO_LISTLaurent Vivier
# QEMU_LOG=unimp ip a Unknown host QEMU_IFLA type: 22 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211219154514.2165728-2-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: netlink: update IFLA entriesLaurent Vivier
Add IFLA_PHYS_PORT_ID, IFLA_PARENT_DEV_NAME, IFLA_PARENT_DEV_BUS_NAME # QEMU_LOG=unimp ip a Unknown host QEMU_IFLA type: 56 Unknown host QEMU_IFLA type: 57 Unknown host QEMU_IFLA type: 34 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211219154514.2165728-1-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-13linux-user: Split linux-user internals out of qemu.hPeter Maydell
qemu.h is included in various non-linux-user files (which mostly want the TaskState struct and the functions for doing usermode access to guest addresses like lock_user(), unlock_user(), get_user*(), etc). Split out the parts that are only used in linux-user itself into a new user-internals.h. This leaves qemu.h with basically three things: * the definition of the TaskState struct * the user-access functions and macros * do_brk() all of which are needed by code outside linux-user that includes qemu.h. The addition of all the extra #include lines was done with sed -i '/include.*qemu\.h/a #include "user-internals.h"' $(git grep -l 'include.*qemu\.h' linux-user) (and then undoing the change to fpa11.h). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210908154405.15417-8-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-13linux-user: Split signal-related prototypes into signal-common.hPeter Maydell
Split the signal related prototypes into the existing header file signal-common.h, and include it in those places that now require it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210908154405.15417-4-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12fd-trans: Fix race condition on reallocation of the translation table.Owen Anderson
The mapping from file-descriptors to translator functions is not guarded on realloc which may cause invalid function pointers to be read from a previously deallocated mapping. Signed-off-by: Owen Anderson <oanderso@google.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210701221255.107976-1-oanderso@google.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-11-17linux-user,netlink: add IFLA_BRPORT_MRP_RING_OPEN, IFLA_BRPORT_MRP_IN_OPENLaurent Vivier
Fix "-d unimp" trace results: Unknown QEMU_IFLA_BRPORT type 35 Unknown QEMU_IFLA_BRPORT type 36 Also process IFLA_EXT_MASK to fix: Unknown target QEMU_IFLA type: 29 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20201117111905.843925-1-laurent@vivier.eu>
2020-11-17linux-user,netlink: fix message translation with ip commandLaurent Vivier
With iproute2-5.8.0, the route, link and addr show commands fail: root@sid:~# ip addr show RTNETLINK answers: Unknown error 352321537 Dump terminated root@sid:~# ip link show RTNETLINK answers: Unknown error 352321537 Dump terminated root@sid:~# ip route show RTNETLINK answers: Unknown error 352321537 Dump terminated This patch correctly decodes the GETROUTE and GETLINK commands and adds the RTA_TABLE message. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20201116163622.791442-1-laurent@vivier.eu>
2020-07-13linux-user: add netlink RTM_SETLINK commandLaurent Vivier
This command is needed to be able to boot systemd in a container. $ sudo systemd-nspawn -D /chroot/armhf/sid/ -b Spawning container sid on /chroot/armhf/sid. Press ^] three times within 1s to kill container. systemd 245.6-2 running in system mode. Detected virtualization systemd-nspawn. Detected architecture arm. Welcome to Debian GNU/Linux bullseye/sid! Set hostname to <virt-arm>. Failed to enqueue loopback interface start request: Operation not supported Caught <SEGV>, dumped core as pid 3. Exiting PID 1... Container sid failed with error code 255. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200709072332.890440-2-laurent@vivier.eu>
2020-07-13linux-user: add new netlink typesLaurent Vivier
Only implement IFLA_PERM_ADDRESS to fix the following error: Unknown host QEMU_IFLA type: 54 The couple of other ones, IFLA_PROP_LIST and IFLA_ALT_IFNAME, have been introduced to be used with RTM_NEWLINKPROP, RTM_DELLINKPROP and RTM_GETLINKPROP that are not implemented by QEMU. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200709072332.890440-1-laurent@vivier.eu>
2020-02-19linux-user: Use `qemu_log' for non-strace loggingJosh Kunz
Since most calls to `gemu_log` are actually logging unimplemented features, this change replaces most non-strace calls to `gemu_log` with calls to `qemu_log_mask(LOG_UNIMP, ...)`. This allows the user to easily log to a file, and to mask out these log messages if they desire. Note: This change is slightly backwards incompatible, since now these "unimplemented" log messages will not be logged by default. Signed-off-by: Josh Kunz <jkz@google.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200204025416.111409-2-jkz@google.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-10-21Fix unsigned integer underflow in fd-trans.cShu-Chun Weng
In any of these `*_for_each_*` functions, the last entry in the buffer (so the "remaining length in the buffer" `len` is equal to the length of the entry `nlmsg_len`/`nla_len`/etc) has size that is not a multiple of the alignment, the aligned lengths `*_ALIGN(*_len)` will be greater than `len`. Since `len` is unsigned (`size_t`), it underflows and the loop will read pass the buffer. This may manifest as random EINVAL or EOPNOTSUPP error on IO or network system calls. Signed-off-by: Shu-Chun Weng <scw@google.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20191018001920.178283-1-scw@google.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-02linux-user: move QEMU_IFLA_BR_MULTI_BOOLOPT to the good functionLaurent Vivier
QEMU_IFLA_BR_MULTI_BOOLOPT has been added to the wrong function host_to_target_slave_data_bridge_nlattr(). Move it to host_to_target_data_bridge_nlattr(). This fixes following error: Unknown QEMU_IFLA_BR type 46 Fixes: 61b463fbf6cb ("linux-user: add new netlink types") Message-Id: <20190626150855.27446-1-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07linux-user: add new netlink typesLaurent Vivier
Add QEMU_IFLA_BR_VLAN_STATS_PER_PORT (from linux v4.20), QEMU_IFLA_BR_MULTI_BOOLOPT (from linux v5.0). The first new entry fixes the following error: Unknown QEMU_IFLA_BR type 45 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190306200925.17605-1-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-07linux-user: add new netlink typesLaurent Vivier
Add QEMU_IFLA_MIN_MTU, QEMU_IFLA_MAX_MTU (from linux v4.19) QEMU_IFLA_BRPORT_ISOLATED (from linux v4.18) and QEMU_IFLA_BRPORT_BACKUP_PORT (from linux v4.19). These new types fix this error flow with sudo: ... Unknown host QEMU_IFLA type: 50 Unknown host QEMU_IFLA type: 51 Unknown QEMU_IFLA_BRPORT type 33 ... Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20190206193211.6683-1-laurent@vivier.eu>
2018-09-25linux-user: move TargetFdTrans functions to their own fileLaurent Vivier
This will ease to move out syscall functions from syscall.c Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180823222215.13781-1-laurent@vivier.eu>
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