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c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1716491173; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dc/TOwAU9vhSOb+rAc6rFNHJjK+Pe45jsesCu2QG4kc=; b=VS8DPy6sNW3rNYk83TjNlBSS8xzP95XxNG/GXKPFM9dgaX6y9/C2RDanUkBmbVb+SbtfF2 29xtR/OwZ/ym2LDA== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: berrange@redhat.com, armbru@redhat.com, Peter Xu , Claudio Fontana , Jim Fehlig , Paolo Bonzini Subject: [PATCH v2 08/18] monitor: Report errors from monitor_fdset_dup_fd_add Date: Thu, 23 May 2024 16:05:38 -0300 Message-Id: <20240523190548.23977-9-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240523190548.23977-1-farosas@suse.de> References: <20240523190548.23977-1-farosas@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.80 X-Spamd-Result: default: False [-2.80 / 50.00]; BAYES_HAM(-3.00)[100.00%]; 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charset="utf-8" I'm keeping the EACCES because callers expect to be able to look at errno. Signed-off-by: Fabiano Rosas Reviewed-by: Peter Xu --- include/monitor/monitor.h | 2 +- monitor/fds.c | 10 +++++++++- stubs/fdset.c | 2 +- util/osdep.c | 10 +--------- 4 files changed, 12 insertions(+), 12 deletions(-) diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h index fd9b3f538c..c3740ec616 100644 --- a/include/monitor/monitor.h +++ b/include/monitor/monitor.h @@ -51,7 +51,7 @@ int monitor_read_password(MonitorHMP *mon, ReadLineFunc *= readline_func, =20 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_i= d, const char *opaque, Error **errp); -int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags); +int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags, Error **errp); void monitor_fdset_dup_fd_remove(int dup_fd); =20 void monitor_register_hmp(const char *name, bool info, diff --git a/monitor/fds.c b/monitor/fds.c index fa723e1883..d93d2e695b 100644 --- a/monitor/fds.c +++ b/monitor/fds.c @@ -404,9 +404,10 @@ AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset= _id, int64_t fdset_id, return fdinfo; } =20 -int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags) +int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags, Error **errp) { #ifdef _WIN32 + error_setg(errp, "Platform does not support fd passing (fdset)"); return -ENOENT; #else MonFdset *mon_fdset; @@ -426,6 +427,8 @@ int monitor_fdset_dup_fd_add(int64_t fdset_id, int flag= s) QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) { mon_fd_flags =3D fcntl(mon_fdset_fd->fd, F_GETFL); if (mon_fd_flags =3D=3D -1) { + error_setg(errp, "Failed to read file status flags for fd= =3D%d", + mon_fdset_fd->fd); return -1; } =20 @@ -437,11 +440,15 @@ int monitor_fdset_dup_fd_add(int64_t fdset_id, int fl= ags) =20 if (fd =3D=3D -1) { errno =3D EACCES; + error_setg(errp, + "Failed to find file descriptor with matching flags= =3D0x%x", + flags); return -1; } =20 dup_fd =3D qemu_dup_flags(fd, flags); if (dup_fd =3D=3D -1) { + error_setg(errp, "Failed to dup() given file descriptor fd=3D%= d", fd); return -1; } =20 @@ -451,6 +458,7 @@ int monitor_fdset_dup_fd_add(int64_t fdset_id, int flag= s) return dup_fd; } =20 + error_setg(errp, "Failed to find fdset /dev/fdset/%" PRId64, fdset_id); errno =3D ENOENT; return -1; #endif diff --git a/stubs/fdset.c b/stubs/fdset.c index 389e368a29..2950fd91fd 100644 --- a/stubs/fdset.c +++ b/stubs/fdset.c @@ -3,7 +3,7 @@ #include "monitor/monitor.h" #include "../monitor/monitor-internal.h" =20 -int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags) +int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags, Error **errp) { errno =3D ENOSYS; return -1; diff --git a/util/osdep.c b/util/osdep.c index 2d9749d060..0cb8f98bf6 100644 --- a/util/osdep.c +++ b/util/osdep.c @@ -305,7 +305,6 @@ qemu_open_internal(const char *name, int flags, mode_t = mode, Error **errp) /* Attempt dup of fd from fd set */ if (strstart(name, "/dev/fdset/", &fdset_id_str)) { int64_t fdset_id; - int dupfd; =20 fdset_id =3D qemu_parse_fdset(fdset_id_str); if (fdset_id =3D=3D -1) { @@ -314,14 +313,7 @@ qemu_open_internal(const char *name, int flags, mode_t= mode, Error **errp) return -1; } =20 - dupfd =3D monitor_fdset_dup_fd_add(fdset_id, flags); - if (dupfd =3D=3D -1) { - error_setg_errno(errp, errno, "Could not dup FD for %s flags %= x", - name, flags); - return -1; - } - - return dupfd; + return monitor_fdset_dup_fd_add(fdset_id, flags, errp); } #endif =20 --=20 2.35.3