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2019-01-14slirp: factor out guestfwd addition checksMarc-André Lureau
This will allow reusing the function in a following patch. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace DEBUG_ARGS with DEBUG_ARGMarc-André Lureau
There is no clear benefit in calling an alias DEBUG_ARGS(). Replace calls with DEBUG_ARG(), and fix the white-spacing while at it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove remaining DEBUG blocksMarc-André Lureau
Instead, rely on slirp_debug flags, or compile unconditionally (the substraction in cksum is unlikely to affect any benchmark result). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: use %p for pointers formatMarc-André Lureau
This fixes some compilation warnings on mingw64. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: introduce SLIRP_DEBUG environment variableMarc-André Lureau
Learn to read SLIRP_DEBUG=call,misc,error (all or help also handled) to set the slirp_debug flags. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: always build with debug statementsMarc-André Lureau
Make debug statements condiitonal only on slirp_debug flags, instead of the pre-processor DEBUG blocks, as it may introduce breakage easily, since the debug code isn't always compiled. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: no need to make DPRINTF conditional on DEBUGMarc-André Lureau
DEBUG_CALL is already handled conditionally. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace a DEBUG block with WITH_ICMP_ERROR_MSGMarc-André Lureau
icmp_send_error() doesnt actually log messages when DEBUG is enabled. Let's use a different define that describes better the tweaked behaviour of the function, and avoid uncompiled code. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace some fprintf() with DEBUG_MISCMarc-André Lureau
Remove some clutter, and avoids direct call to fprintf(). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace a fprintf with g_critical()Marc-André Lureau
Reduce dependency on QEMU. QEMU could use a custom glib log handler if it wants to redirect/filter it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: use virtual time for packet expirationMarc-André Lureau
Make all packets expiration time based on virtual clock. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: rename exec_listMarc-André Lureau
This list is not only used to handle command to execute on guest connection, it can also redirect to an arbitrary object, such as a chardev. Let's rename the struct and the field to "guestfwd". Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: drop <Vista compatibilityMarc-André Lureau
Since commit 12f8def0e02232d7c6416ad9b66640f973c531d1 (v2.9), qemu requires Vista. Let's remove some conditional code. Note that this introduces a missing declaration warning with mingw. warning: implicit declaration of function 'inet_ntop' See also: https://sourceforge.net/p/mingw-w64/mailman/message/36473782/ We could workaround it by declaring it ourself depending on __MINGW64_VERSION_*: WINSOCK_API_LINKAGE INT WSAAPI inet_pton(int Family, PCTSTR pszAddrString, PVOID pAddrBuf); Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: Enable fork_exec support on WindowsSamuel Thibault
g_spawn_async_with_fds is portable on Windows, so we can now enable fork_exec support there. Thanks Daniel P. Berrangé for the notice! Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-01-14slirp: replace error_report() with g_critical()Marc-André Lureau
Reduce dependency on QEMU. QEMU could use a custom log handler if it wants to redirect/filter it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: simplify fork_exec()Marc-André Lureau
Use g_spawn_async_with_fds() to setup the child. GSpawn handles reaping the child, and closing parent file descriptors. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14glib-compat: add g_spawn_async_with_fds() fallbackMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14net: do not depend on slirp internalsMarc-André Lureau
Only slirp/libslirp.h should be included. Instead of using some slirp declarations and utility functions directly, let's copy them in net/util.h. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace ARRAY_SIZE with G_N_ELEMENTSMarc-André Lureau
Do not require QEMU macro. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove dead TCP_ACK_HACK codeMarc-André Lureau
Untouched since original introduction in 2004. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: NULL is defined by stddef.hMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused sbflush()Marc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove #if notdef dead codeMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: add a callback to log guest errorsMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: improve a bit the debug macrosMarc-André Lureau
Let them accept multiple arguments. Simplify the inner argument handling of DEBUG_ARGS/DEBUG_MISC_DEBUG_ERROR. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace error_report() with g_critical()Marc-André Lureau
Reduce dependency on QEMU. QEMU could use a custom log handler if it wants to redirect/filter it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused global slirp_instanceMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace compile time DO_KEEPALIVEMarc-André Lureau
Use a global variable instead (similar to slirp_debug) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace SIZEOF_CHAR_P with glib equivalentMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace HOST_WORDS_BIGENDIAN with glib equivalentMarc-André Lureau
One more step towards making the project independent from QEMU. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused HAVE_INET_ATONMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused DECLARE_IOVECMarc-André Lureau
It's actually qemu configure CONFIG_IOVEC that is being used. slirp/ does not use it anyway Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove HAVE_SYS_FILIO_HMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove HAVE_SYS_IOCTL_HMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused HAVE_SYS_SELECT_HMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused HAVE_SYS_WAIT_HMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused HAVE_ARPA_INET_HMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused HAVE_SYS_STROPTS_HMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove NO_UNIX_SOCKETSMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused HAVE_SYS_BITYPES_HMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove HAVE_SYS_SIGNAL_HMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove the disabled readv()/writev() code pathMarc-André Lureau
The soread() function may be used on datagram sockets, and would provide different behaviour if HAVE_READV was set, on empty datagrams. This looks like a minor optimization, that never has been a strong goal for slirp. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove FULL_BOLTMarc-André Lureau
Looking at git history, this looks like something from the past, when there was a tty layer. Let's remove it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove PROBE_CONN dead-codeMarc-André Lureau
Nobody cares for over 14y. Somebody can revert or rewrite if interested by that. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: use a callback structure to interface with qemuMarc-André Lureau
This will bring slirp a bit forward to the state of an independent project. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove unused M_TRAILINGSPACEMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: move socket pair creation in helper functionMarc-André Lureau
Originally, the patch was fixing a bunch of issues, but Peter beat me to it with earlier commit "slirp: fork_exec(): create and connect child socket before fork()". Factor out socket pair creation, to simplify the fork_exec() code. Use the name socketpair_with_oob() since the code is actually similar to what socketpair() would do, except that it uses TCP sockets, for SLIRP to be able to call send with MSG_OOB (since SO_OOBINLINE is set, this could probably be faked instead on regular unix sockets though). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: add tftp tracingGerd Hoffmann
Useful when debugging pxeboot, to see what the guest tries to do. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Liam Merwick <liam.merwick@oracle.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: remove dead declarationsMarc-André Lureau
An overdue cleanup. Remaining declarations could probably be moved in other headers, such as slirp.h. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-01-14slirp: replace the poor-man string split with g_strsplit()Marc-André Lureau
Use the glib function for the work, fix a potential crash on >256 words. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>