[PULLv3,31/32] slirp: pass opaque to all callbacks

Message ID	20190205182848.29887-32-samuel.thibault@ens-lyon.org (mailing list archive)
State	New, archived
Headers	show Return-Path: <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org> From: Samuel Thibault <samuel.thibault@ens-lyon.org> To: qemu-devel@nongnu.org, peter.maydell@linaro.org Date: Tue, 5 Feb 2019 20:28:47 +0200 Message-Id: <20190205182848.29887-32-samuel.thibault@ens-lyon.org> In-Reply-To: <20190205182848.29887-1-samuel.thibault@ens-lyon.org> References: <20190205182848.29887-1-samuel.thibault@ens-lyon.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PULLv3 31/32] slirp: pass opaque to all callbacks Precedence: list Cc: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>, Samuel Thibault <samuel.thibault@ens-lyon.org>, stefanha@redhat.com, jan.kiszka@siemens.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org>
Series	[PULLv3,01/32] slirp: Avoid unaligned 16bit memory access \| expand [PULLv3,01/32] slirp: Avoid unaligned 16bit memory access [PULLv3,02/32] slirp: Avoid marking naturally packed structs as QEMU_PACKED [PULLv3,03/32] slirp: Don't mark struct ipq or struct ipasfrag as packed [PULLv3,04/32] slirp: generalize guestfwd with a callback based approach [PULLv3,05/32] net/slirp: simplify checking for cmd: prefix [PULLv3,06/32] net/slirp: free forwarding rules on cleanup [PULLv3,07/32] net/slirp: fix leaks on forwarding rule registration error [PULLv3,08/32] slirp: add callbacks for timer [PULLv3,09/32] slirp: replace trace functions with DEBUG calls [PULLv3,10/32] slirp: replace QEMU_PACKED with SLIRP_PACKED [PULLv3,11/32] slirp: replace most qemu socket utilities with slirp own version [PULLv3,12/32] slirp: replace qemu_set_nonblock() [PULLv3,13/32] slirp: add unregister_poll_fd() callback [PULLv3,14/32] slirp: replace qemu_notify_event() with a callback [PULLv3,15/32] slirp: move QEMU state saving to a separate unit [PULLv3,16/32] slirp: do not include qemu headers in libslirp.h public API header [PULLv3,17/32] slirp: improve windows headers inclusion [PULLv3,18/32] slirp: add slirp own version of pstrcpy [PULLv3,19/32] slirp: remove qemu timer.h dependency [PULLv3,20/32] slirp: remove now useless QEMU headers inclusions [PULLv3,21/32] slirp: replace net/eth.h inclusion with own defines [PULLv3,22/32] slirp: replace qemu qtailq with slirp own copy [PULLv3,23/32] slirp: replace QEMU_BUILD_BUG_ON with G_STATIC_ASSERT [PULLv3,24/32] slirp: Move g_spawn_async_with_fds_qemu compatibility to slirp/ [PULLv3,25/32] slirp: replace remaining qemu headers dependency [PULLv3,26/32] slirp: prefer c99 types over BSD kind [PULLv3,27/32] slirp: improve send_packet() callback [PULLv3,28/32] slirp: replace global polling with per-instance & notifier [PULLv3,29/32] slirp: remove slirp_instances list [PULLv3,30/32] slirp: use polling callbacks, drop glib requirement [PULLv3,31/32] slirp: pass opaque to all callbacks [PULLv3,32/32] slirp: API is extern C

diff --git a/net/slirp.c b/net/slirp.c index a85e42ff43..7a16d8d615 100644 --- a/net/slirp.c +++ b/net/slirp.c @@ -161,44 +161,51 @@ static NetClientInfo net_slirp_info = { .cleanup = net_slirp_cleanup, }; -static void net_slirp_guest_error(const char *msg) +static void net_slirp_guest_error(const char *msg, void *opaque) { qemu_log_mask(LOG_GUEST_ERROR, "%s", msg); } -static int64_t net_slirp_clock_get_ns(void) +static int64_t net_slirp_clock_get_ns(void *opaque) { return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); } -static void *net_slirp_timer_new(SlirpTimerCb cb, void *opaque) +static void *net_slirp_timer_new(SlirpTimerCb cb, + void *cb_opaque, void *opaque) { return timer_new_full(NULL, QEMU_CLOCK_VIRTUAL, SCALE_MS, QEMU_TIMER_ATTR_EXTERNAL, - cb, opaque); + cb, cb_opaque); } -static void net_slirp_timer_free(void *timer) +static void net_slirp_timer_free(void *timer, void *opaque) { timer_del(timer); timer_free(timer); } -static void net_slirp_timer_mod(void *timer, int64_t expire_timer) +static void net_slirp_timer_mod(void *timer, int64_t expire_timer, + void *opaque) { timer_mod(timer, expire_timer); } -static void net_slirp_register_poll_fd(int fd) +static void net_slirp_register_poll_fd(int fd, void *opaque) { qemu_fd_register(fd); } -static void net_slirp_unregister_poll_fd(int fd) +static void net_slirp_unregister_poll_fd(int fd, void *opaque) { /* no qemu_fd_unregister */ } +static void net_slirp_notify(void *opaque) +{ + qemu_notify_event(); +} + static const SlirpCb slirp_cb = { .send_packet = net_slirp_send_packet, .guest_error = net_slirp_guest_error, @@ -208,7 +215,7 @@ static const SlirpCb slirp_cb = { .timer_mod = net_slirp_timer_mod, .register_poll_fd = net_slirp_register_poll_fd, .unregister_poll_fd = net_slirp_unregister_poll_fd, - .notify = qemu_notify_event, + .notify = net_slirp_notify, }; static int slirp_poll_to_gio(int events) diff --git a/slirp/dhcpv6.c b/slirp/dhcpv6.c index 9ffba38e8f..e655c7d5b1 100644 --- a/slirp/dhcpv6.c +++ b/slirp/dhcpv6.c @@ -59,7 +59,7 @@ static int dhcpv6_parse_info_request(Slirp *slirp, uint8_t *odata, int olen, int len = odata[2] << 8 | odata[3]; if (len + 4 > olen) { - slirp->cb->guest_error("Guest sent bad DHCPv6 packet!"); + slirp->cb->guest_error("Guest sent bad DHCPv6 packet!", slirp->opaque); return -E2BIG; } diff --git a/slirp/if.c b/slirp/if.c index 2ad03b8a79..1830cc396c 100644 --- a/slirp/if.c +++ b/slirp/if.c @@ -146,7 +146,7 @@ diddit: */ void if_start(Slirp *slirp) { - uint64_t now = slirp->cb->clock_get_ns(); + uint64_t now = slirp->cb->clock_get_ns(slirp->opaque); bool from_batchq = false; struct mbuf *ifm, *ifm_next, *ifqt; diff --git a/slirp/ip6_icmp.c b/slirp/ip6_icmp.c index 2a432ebbd4..c1e3d30470 100644 --- a/slirp/ip6_icmp.c +++ b/slirp/ip6_icmp.c @@ -14,7 +14,8 @@ static void ra_timer_handler(void *opaque) Slirp *slirp = opaque; slirp->cb->timer_mod(slirp->ra_timer, - slirp->cb->clock_get_ns() / SCALE_MS + NDP_Interval); + slirp->cb->clock_get_ns(slirp->opaque) / SCALE_MS + NDP_Interval, + slirp->opaque); ndp_send_ra(slirp); } @@ -24,9 +25,10 @@ void icmp6_init(Slirp *slirp) return; } - slirp->ra_timer = slirp->cb->timer_new(ra_timer_handler, slirp); + slirp->ra_timer = slirp->cb->timer_new(ra_timer_handler, slirp, slirp->opaque); slirp->cb->timer_mod(slirp->ra_timer, - slirp->cb->clock_get_ns() / SCALE_MS + NDP_Interval); + slirp->cb->clock_get_ns(slirp->opaque) / SCALE_MS + NDP_Interval, + slirp->opaque); } void icmp6_cleanup(Slirp *slirp) @@ -35,7 +37,7 @@ void icmp6_cleanup(Slirp *slirp) return; } - slirp->cb->timer_free(slirp->ra_timer); + slirp->cb->timer_free(slirp->ra_timer, slirp->opaque); } static void icmp6_send_echoreply(struct mbuf *m, Slirp *slirp, struct ip6 *ip, @@ -334,7 +336,8 @@ static void ndp_input(struct mbuf *m, Slirp *slirp, struct ip6 *ip, case ICMP6_NDP_RA: DEBUG_CALL(" type = Router Advertisement"); - slirp->cb->guest_error("Warning: guest sent NDP RA, but shouldn't"); + slirp->cb->guest_error("Warning: guest sent NDP RA, but shouldn't", + slirp->opaque); break; case ICMP6_NDP_NS: @@ -368,7 +371,7 @@ static void ndp_input(struct mbuf *m, Slirp *slirp, struct ip6 *ip, case ICMP6_NDP_REDIRECT: DEBUG_CALL(" type = Redirect"); slirp->cb->guest_error( - "Warning: guest sent NDP REDIRECT, but shouldn't"); + "Warning: guest sent NDP REDIRECT, but shouldn't", slirp->opaque); break; } } diff --git a/slirp/ip_icmp.c b/slirp/ip_icmp.c index 7c5cb75ae5..ce79c0b051 100644 --- a/slirp/ip_icmp.c +++ b/slirp/ip_icmp.c @@ -113,7 +113,7 @@ static int icmp_send(struct socket *so, struct mbuf *m, int hlen) void icmp_detach(struct socket *so) { - so->slirp->cb->unregister_poll_fd(so->s); + so->slirp->cb->unregister_poll_fd(so->s, so->slirp->opaque); slirp_closesocket(so->s); sofree(so); } diff --git a/slirp/libslirp.h b/slirp/libslirp.h index b5c1b2122b..9b13d8250c 100644 --- a/slirp/libslirp.h +++ b/slirp/libslirp.h @@ -40,21 +40,21 @@ typedef struct SlirpCb { */ SlirpWriteCb send_packet; /* Print a message for an error due to guest misbehavior. */ - void (*guest_error)(const char *msg); + void (*guest_error)(const char *msg, void *opaque); /* Return the virtual clock value in nanoseconds */ - int64_t (*clock_get_ns)(void); + int64_t (*clock_get_ns)(void *opaque); /* Create a new timer with the given callback and opaque data */ - void *(*timer_new)(SlirpTimerCb cb, void *opaque); + void *(*timer_new)(SlirpTimerCb cb, void *cb_opaque, void *opaque); /* Remove and free a timer */ - void (*timer_free)(void *timer); + void (*timer_free)(void *timer, void *opaque); /* Modify a timer to expire at @expire_time */ - void (*timer_mod)(void *timer, int64_t expire_time); + void (*timer_mod)(void *timer, int64_t expire_time, void *opaque); /* Register a fd for future polling */ - void (*register_poll_fd)(int fd); + void (*register_poll_fd)(int fd, void *opaque); /* Unregister a fd */ - void (*unregister_poll_fd)(int fd); + void (*unregister_poll_fd)(int fd, void *opaque); /* Kick the io-thread, to signal that new events may be processed */ - void (*notify)(void); + void (*notify)(void *opaque); } SlirpCb; diff --git a/slirp/misc.c b/slirp/misc.c index 3c02510101..3f4cd852f8 100644 --- a/slirp/misc.c +++ b/slirp/misc.c @@ -222,7 +222,7 @@ fork_exec(struct socket *so, const char *ex) opt = 1; slirp_setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int)); slirp_set_nonblock(so->s); - so->slirp->cb->register_poll_fd(so->s); + so->slirp->cb->register_poll_fd(so->s, so->slirp->opaque); return 1; } diff --git a/slirp/slirp.c b/slirp/slirp.c index 04886d05fd..93b2cd0141 100644 --- a/slirp/slirp.c +++ b/slirp/slirp.c @@ -289,6 +289,7 @@ Slirp *slirp_init(int restricted, bool in_enabled, struct in_addr vnetwork, slirp_init_once(); + slirp->opaque = opaque; slirp->cb = callbacks; slirp->grand = g_rand_new(); slirp->restricted = restricted; @@ -325,12 +326,9 @@ Slirp *slirp_init(int restricted, bool in_enabled, struct in_addr vnetwork, translate_dnssearch(slirp, vdnssearch); } - slirp->opaque = opaque; - #ifdef WITH_QEMU slirp_state_register(slirp); #endif - return slirp; } @@ -537,7 +535,7 @@ void slirp_pollfds_poll(Slirp *slirp, int select_error, struct socket *so, *so_next; int ret; - curtime = slirp->cb->clock_get_ns() / SCALE_MS; + curtime = slirp->cb->clock_get_ns(slirp->opaque) / SCALE_MS; /* * See if anything has timed out @@ -860,7 +858,8 @@ static int if_encap4(Slirp *slirp, struct mbuf *ifm, struct ethhdr *eh, ifm->resolution_requested = true; /* Expire request and drop outgoing packet after 1 second */ - ifm->expiration_date = slirp->cb->clock_get_ns() + 1000000000ULL; + ifm->expiration_date = + slirp->cb->clock_get_ns(slirp->opaque) + 1000000000ULL; } return 0; } else { @@ -886,7 +885,7 @@ static int if_encap6(Slirp *slirp, struct mbuf *ifm, struct ethhdr *eh, if (!ifm->resolution_requested) { ndp_send_ns(slirp, ip6h->ip_dst); ifm->resolution_requested = true; - ifm->expiration_date = slirp->cb->clock_get_ns() + 1000000000ULL; + ifm->expiration_date = slirp->cb->clock_get_ns(slirp->opaque) + 1000000000ULL; } return 0; } else { @@ -961,7 +960,7 @@ int slirp_remove_hostfwd(Slirp *slirp, int is_udp, struct in_addr host_addr, getsockname(so->s, (struct sockaddr *)&addr, &addr_len) == 0 && addr.sin_addr.s_addr == host_addr.s_addr && addr.sin_port == port) { - so->slirp->cb->unregister_poll_fd(so->s); + so->slirp->cb->unregister_poll_fd(so->s, so->slirp->opaque); slirp_closesocket(so->s); sofree(so); return 0; diff --git a/slirp/socket.c b/slirp/socket.c index c896fa6da3..ce1d6ffa1d 100644 --- a/slirp/socket.c +++ b/slirp/socket.c @@ -930,6 +930,6 @@ void sotranslate_accept(struct socket *so) void sodrop(struct socket *s, int num) { if (sbdrop(&s->so_snd, num)) { - s->slirp->cb->notify(); + s->slirp->cb->notify(s->slirp->opaque); } } diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c index e35628a892..cda94815f6 100644 --- a/slirp/tcp_subr.c +++ b/slirp/tcp_subr.c @@ -336,7 +336,7 @@ tcp_close(struct tcpcb *tp) /* clobber input socket cache if we're closing the cached connection */ if (so == slirp->tcp_last_so) slirp->tcp_last_so = &slirp->tcb; - so->slirp->cb->unregister_poll_fd(so->s); + so->slirp->cb->unregister_poll_fd(so->s, so->slirp->opaque); slirp_closesocket(so->s); sbfree(&so->so_rcv); sbfree(&so->so_snd); @@ -413,7 +413,7 @@ int tcp_fconnect(struct socket *so, unsigned short af) struct sockaddr_storage addr; slirp_set_nonblock(s); - so->slirp->cb->register_poll_fd(so->s); + so->slirp->cb->register_poll_fd(so->s, so->slirp->opaque); slirp_socket_set_fast_reuse(s); opt = 1; slirp_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(opt)); @@ -486,7 +486,7 @@ void tcp_connect(struct socket *inso) return; } slirp_set_nonblock(s); - so->slirp->cb->register_poll_fd(so->s); + so->slirp->cb->register_poll_fd(so->s, so->slirp->opaque); slirp_socket_set_fast_reuse(s); opt = 1; slirp_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int)); @@ -498,7 +498,7 @@ void tcp_connect(struct socket *inso) /* Close the accept() socket, set right state */ if (inso->so_state & SS_FACCEPTONCE) { /* If we only accept once, close the accept() socket */ - so->slirp->cb->unregister_poll_fd(so->s); + so->slirp->cb->unregister_poll_fd(so->s, so->slirp->opaque); slirp_closesocket(so->s); /* Don't select it yet, even though we have an FD */ diff --git a/slirp/udp.c b/slirp/udp.c index 5baa604b33..29a31e9400 100644 --- a/slirp/udp.c +++ b/slirp/udp.c @@ -291,7 +291,7 @@ udp_attach(struct socket *so, unsigned short af) void udp_detach(struct socket *so) { - so->slirp->cb->unregister_poll_fd(so->s); + so->slirp->cb->unregister_poll_fd(so->s, so->slirp->opaque); slirp_closesocket(so->s); sofree(so); }

[PULLv3,31/32] slirp: pass opaque to all callbacks

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