From 95fa0c79a04f3ebebb9f3b68cc05b4b8082b5444 Mon Sep 17 00:00:00 2001 From: Anthony Harivel Date: Wed, 22 May 2024 17:34:50 +0200 Subject: qio: add support for SO_PEERCRED for socket channel The function qio_channel_get_peercred() returns a pointer to the credentials of the peer process connected to this socket. This credentials structure is defined in as follows: struct ucred { pid_t pid; /* Process ID of the sending process */ uid_t uid; /* User ID of the sending process */ gid_t gid; /* Group ID of the sending process */ }; The use of this function is possible only for connected AF_UNIX stream sockets and for AF_UNIX stream and datagram socket pairs. On platform other than Linux, the function return 0. Signed-off-by: Anthony Harivel Link: https://lore.kernel.org/r/20240522153453.1230389-2-aharivel@redhat.com Signed-off-by: Paolo Bonzini --- io/channel.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'io/channel.c') diff --git a/io/channel.c b/io/channel.c index a1f12f8e90..e3f17c24a0 100644 --- a/io/channel.c +++ b/io/channel.c @@ -548,6 +548,19 @@ void qio_channel_set_cork(QIOChannel *ioc, } } +int qio_channel_get_peerpid(QIOChannel *ioc, + unsigned int *pid, + Error **errp) +{ + QIOChannelClass *klass = QIO_CHANNEL_GET_CLASS(ioc); + + if (!klass->io_peerpid) { + error_setg(errp, "Channel does not support peer pid"); + return -1; + } + klass->io_peerpid(ioc, pid, errp); + return 0; +} off_t qio_channel_io_seek(QIOChannel *ioc, off_t offset, -- cgit 1.4.1