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Index: head/sys/compat/cloudabi/cloudabi_sock.c
===================================================================
--- head/sys/compat/cloudabi/cloudabi_sock.c
+++ head/sys/compat/cloudabi/cloudabi_sock.c
@@ -210,7 +210,7 @@
int error;
error = getsock_cap(td, uap->sock, cap_rights_init(&rights,
- CAP_GETSOCKOPT, CAP_GETPEERNAME, CAP_GETSOCKNAME), &fp, NULL);
+ CAP_GETSOCKOPT, CAP_GETPEERNAME, CAP_GETSOCKNAME), &fp, NULL, NULL);
if (error != 0)
return (error);
so = fp->f_data;
Index: head/sys/compat/linux/linux_socket.c
===================================================================
--- head/sys/compat/linux/linux_socket.c
+++ head/sys/compat/linux/linux_socket.c
@@ -855,7 +855,7 @@
if (error == EFAULT && namelen != sizeof(struct sockaddr_in))
return (EINVAL);
if (error == EINVAL) {
- error1 = getsock_cap(td, s, &rights, &fp, NULL);
+ error1 = getsock_cap(td, s, &rights, &fp, NULL, NULL);
if (error1 != 0)
return (error1);
so = fp->f_data;
Index: head/sys/kern/kern_sendfile.c
===================================================================
--- head/sys/kern/kern_sendfile.c
+++ head/sys/kern/kern_sendfile.c
@@ -502,7 +502,7 @@
* The socket must be a stream socket and connected.
*/
error = getsock_cap(td, s, cap_rights_init(&rights, CAP_SEND),
- sock_fp, NULL);
+ sock_fp, NULL, NULL);
if (error != 0)
return (error);
*so = (*sock_fp)->f_data;
Index: head/sys/kern/uipc_syscalls.c
===================================================================
--- head/sys/kern/uipc_syscalls.c
+++ head/sys/kern/uipc_syscalls.c
@@ -89,20 +89,23 @@
/*
* Convert a user file descriptor to a kernel file entry and check if required
* capability rights are present.
+ * If required copy of current set of capability rights is returned.
* A reference on the file entry is held upon returning.
*/
int
getsock_cap(struct thread *td, int fd, cap_rights_t *rightsp,
- struct file **fpp, u_int *fflagp)
+ struct file **fpp, u_int *fflagp, struct filecaps *havecapsp)
{
struct file *fp;
int error;
- error = fget_unlocked(td->td_proc->p_fd, fd, rightsp, &fp, NULL);
+ error = fget_cap(td, fd, rightsp, &fp, havecapsp);
if (error != 0)
return (error);
if (fp->f_type != DTYPE_SOCKET) {
fdrop(fp, td);
+ if (havecapsp != NULL)
+ filecaps_free(havecapsp);
return (ENOTSOCK);
}
if (fflagp != NULL)
@@ -188,7 +191,7 @@
AUDIT_ARG_FD(fd);
AUDIT_ARG_SOCKADDR(td, dirfd, sa);
error = getsock_cap(td, fd, cap_rights_init(&rights, CAP_BIND),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error != 0)
return (error);
so = fp->f_data;
@@ -235,7 +238,7 @@
AUDIT_ARG_FD(uap->s);
error = getsock_cap(td, uap->s, cap_rights_init(&rights, CAP_LISTEN),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error == 0) {
so = fp->f_data;
#ifdef MAC
@@ -308,6 +311,7 @@
struct file *headfp, *nfp = NULL;
struct sockaddr *sa = NULL;
struct socket *head, *so;
+ struct filecaps fcaps;
cap_rights_t rights;
u_int fflag;
pid_t pgid;
@@ -318,7 +322,7 @@
AUDIT_ARG_FD(s);
error = getsock_cap(td, s, cap_rights_init(&rights, CAP_ACCEPT),
- &headfp, &fflag);
+ &headfp, &fflag, &fcaps);
if (error != 0)
return (error);
head = headfp->f_data;
@@ -331,7 +335,8 @@
if (error != 0)
goto done;
#endif
- error = falloc(td, &nfp, &fd, (flags & SOCK_CLOEXEC) ? O_CLOEXEC : 0);
+ error = falloc_caps(td, &nfp, &fd,
+ (flags & SOCK_CLOEXEC) ? O_CLOEXEC : 0, &fcaps);
if (error != 0)
goto done;
ACCEPT_LOCK();
@@ -440,6 +445,8 @@
* a reference on nfp to the caller on success if they request it.
*/
done:
+ if (nfp == NULL)
+ filecaps_free(&fcaps);
if (fp != NULL) {
if (error == 0) {
*fp = nfp;
@@ -511,7 +518,7 @@
AUDIT_ARG_FD(fd);
AUDIT_ARG_SOCKADDR(td, dirfd, sa);
error = getsock_cap(td, fd, cap_rights_init(&rights, CAP_CONNECT),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error != 0)
return (error);
so = fp->f_data;
@@ -754,7 +761,7 @@
AUDIT_ARG_SOCKADDR(td, AT_FDCWD, mp->msg_name);
cap_rights_set(&rights, CAP_CONNECT);
}
- error = getsock_cap(td, s, &rights, &fp, NULL);
+ error = getsock_cap(td, s, &rights, &fp, NULL, NULL);
if (error != 0)
return (error);
so = (struct socket *)fp->f_data;
@@ -923,7 +930,7 @@
AUDIT_ARG_FD(s);
error = getsock_cap(td, s, cap_rights_init(&rights, CAP_RECV),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error != 0)
return (error);
so = fp->f_data;
@@ -1198,7 +1205,7 @@
AUDIT_ARG_FD(uap->s);
error = getsock_cap(td, uap->s, cap_rights_init(&rights, CAP_SHUTDOWN),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error == 0) {
so = fp->f_data;
error = soshutdown(so, uap->how);
@@ -1257,7 +1264,7 @@
AUDIT_ARG_FD(s);
error = getsock_cap(td, s, cap_rights_init(&rights, CAP_SETSOCKOPT),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error == 0) {
so = fp->f_data;
error = sosetopt(so, &sopt);
@@ -1323,7 +1330,7 @@
AUDIT_ARG_FD(s);
error = getsock_cap(td, s, cap_rights_init(&rights, CAP_GETSOCKOPT),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error == 0) {
so = fp->f_data;
error = sogetopt(so, &sopt);
@@ -1376,7 +1383,7 @@
AUDIT_ARG_FD(fd);
error = getsock_cap(td, fd, cap_rights_init(&rights, CAP_GETSOCKNAME),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error != 0)
return (error);
so = fp->f_data;
@@ -1463,7 +1470,7 @@
AUDIT_ARG_FD(fd);
error = getsock_cap(td, fd, cap_rights_init(&rights, CAP_GETPEERNAME),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error != 0)
return (error);
so = fp->f_data;
Index: head/sys/netinet/sctp_syscalls.c
===================================================================
--- head/sys/netinet/sctp_syscalls.c
+++ head/sys/netinet/sctp_syscalls.c
@@ -248,7 +248,7 @@
}
AUDIT_ARG_FD(uap->sd);
- error = getsock_cap(td, uap->sd, &rights, &fp, NULL);
+ error = getsock_cap(td, uap->sd, &rights, &fp, NULL, NULL);
if (error != 0)
goto sctp_bad;
#ifdef KTRACE
@@ -361,7 +361,7 @@
}
AUDIT_ARG_FD(uap->sd);
- error = getsock_cap(td, uap->sd, &rights, &fp, NULL);
+ error = getsock_cap(td, uap->sd, &rights, &fp, NULL, NULL);
if (error != 0)
goto sctp_bad1;
@@ -477,7 +477,7 @@
AUDIT_ARG_FD(uap->sd);
error = getsock_cap(td, uap->sd, cap_rights_init(&rights, CAP_RECV),
- &fp, NULL);
+ &fp, NULL, NULL);
if (error != 0)
return (error);
#ifdef COMPAT_FREEBSD32
Index: head/sys/sys/socketvar.h
===================================================================
--- head/sys/sys/socketvar.h
+++ head/sys/sys/socketvar.h
@@ -321,6 +321,7 @@
extern so_gen_t so_gencnt;
struct file;
+struct filecaps;
struct filedesc;
struct mbuf;
struct sockaddr;
@@ -340,7 +341,7 @@
*/
int getsockaddr(struct sockaddr **namp, caddr_t uaddr, size_t len);
int getsock_cap(struct thread *td, int fd, cap_rights_t *rightsp,
- struct file **fpp, u_int *fflagp);
+ struct file **fpp, u_int *fflagp, struct filecaps *havecaps);
void soabort(struct socket *so);
int soaccept(struct socket *so, struct sockaddr **nam);
void soaio_enqueue(struct task *task);

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