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bindat(2)/connectat(2): allow implicit EMPTYPATH for unix domain sockets

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path specification.

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D57370
This commit is contained in:
Konstantin Belousov
2026-05-31 01:11:45 +03:00
parent 4f7092eeb2
commit 12c590a9ab
1 changed files with 4 additions and 3 deletions
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sys/kern/uipc_usrreq.c
+4 -3
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@@ -612,8 +612,9 @@ uipc_bindat(int fd, struct socket *so, struct sockaddr *nam, struct thread *td)
buf[namelen] = 0; buf[namelen] = 0;
restart: restart:
NDINIT_ATRIGHTS(&nd, CREATE, NOFOLLOW | LOCKPARENT | NOCACHE, NDINIT_ATRIGHTS(&nd, CREATE, NOFOLLOW | LOCKPARENT | NOCACHE |
UIO_SYSSPACE, buf, fd, cap_rights_init_one(&rights, CAP_BINDAT)); EMPTYPATH, UIO_SYSSPACE, buf, fd, cap_rights_init_one(&rights,
CAP_BINDAT));
/* SHOULD BE ABLE TO ADOPT EXISTING AND wakeup() ALA FIFO's */ /* SHOULD BE ABLE TO ADOPT EXISTING AND wakeup() ALA FIFO's */
error = namei(&nd); error = namei(&nd);
if (error) if (error)
@@ -2921,7 +2922,7 @@ unp_connectat(int fd, struct socket *so, struct sockaddr *nam,
sa = malloc(sizeof(struct sockaddr_un), M_SONAME, M_WAITOK); sa = malloc(sizeof(struct sockaddr_un), M_SONAME, M_WAITOK);
else else
sa = NULL; sa = NULL;
NDINIT_ATRIGHTS(&nd, LOOKUP, FOLLOW | LOCKSHARED | LOCKLEAF, NDINIT_ATRIGHTS(&nd, LOOKUP, FOLLOW | LOCKSHARED | LOCKLEAF | EMPTYPATH,
UIO_SYSSPACE, buf, fd, cap_rights_init_one(&rights, CAP_CONNECTAT)); UIO_SYSSPACE, buf, fd, cap_rights_init_one(&rights, CAP_CONNECTAT));
error = namei(&nd); error = namei(&nd);
if (error) if (error)