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https://sourceware.org/git/glibc.git
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1999-03-18 Thorsten Kukuk <kukuk@suse.de>
* sunrpc/clnt_unix.c: Fix creation of parameters for sendmsg/recvmsg on non intel platforms. * sunrpc/svc_unix.c: Likewise. 1999-03-18 Thorsten Kukuk <kukuk@suse.de> * sunrpc/clnt_unix.c: Fix creation of parameters for sendmsg/recvmsg on non intel platforms. * sunrpc/svc_unix.c: Likewise.
This commit is contained in:
Andreas Schwab
parent
6fc8f783a4
commit
d1275afec4
@ -1,3 +1,9 @@
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1999-03-18 Thorsten Kukuk <kukuk@suse.de>
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* sunrpc/clnt_unix.c: Fix creation of parameters for
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sendmsg/recvmsg on non intel platforms.
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* sunrpc/svc_unix.c: Likewise.
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1999-03-18 Philip Blundell <philb@gnu.org>
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* sysdeps/unix/sysv/linux/arm/getgroups.c: New file. Use the i386
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@ -434,32 +434,26 @@ clntunix_destroy (CLIENT *h)
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mem_free ((caddr_t) h, sizeof (CLIENT));
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}
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#ifdef SCM_CREDENTIALS
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struct cmessage {
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struct cmsghdr cmsg;
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struct ucred cmcred;
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};
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#endif
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static int
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__msgread (int sock, void *buf, size_t cnt)
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__msgread (int sock, void *data, size_t cnt)
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{
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struct iovec iov[1];
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struct iovec iov;
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struct msghdr msg;
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#ifdef SCM_CREDENTIALS
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struct cmessage cm;
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static char cm[CMSG_SPACE(sizeof (struct ucred))];
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#endif
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int len;
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iov[0].iov_base = buf;
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iov[0].iov_len = cnt;
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iov.iov_base = data;
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iov.iov_len = cnt;
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msg.msg_iov = iov;
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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msg.msg_name = NULL;
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msg.msg_namelen = 0;
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#ifdef SCM_CREDENTIALS
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msg.msg_control = (caddr_t) &cm;
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msg.msg_controllen = sizeof(struct cmessage);
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msg.msg_controllen = CMSG_SPACE(sizeof (struct ucred));
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#endif
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msg.msg_flags = 0;
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@ -471,43 +465,65 @@ __msgread (int sock, void *buf, size_t cnt)
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}
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#endif
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return recvmsg (sock, &msg, 0);
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restart:
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len = recvmsg (sock, &msg, 0);
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if (len >= 0)
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{
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if (msg.msg_flags & MSG_CTRUNC || len == 0)
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return 0;
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else
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return len;
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}
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if (errno == EINTR)
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goto restart;
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return -1;
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}
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static int
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__msgwrite (int sock, void *buf, size_t cnt)
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__msgwrite (int sock, void *data, size_t cnt)
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{
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#ifndef SCM_CREDENTIALS
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/* We cannot implement this reliably. */
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__set_errno (ENOSYS);
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return -1;
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#else
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struct iovec iov[1];
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struct iovec iov;
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struct msghdr msg;
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struct cmessage cm;
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struct cmsghdr *cmsg = alloca (CMSG_SPACE(sizeof (struct ucred)));
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struct ucred cred;
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int len;
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iov[0].iov_base = buf;
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iov[0].iov_len = cnt;
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cm.cmsg.cmsg_type = SCM_CREDENTIALS;
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cm.cmsg.cmsg_level = SOL_SOCKET;
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cm.cmsg.cmsg_len = sizeof (struct cmessage);
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/* XXX I'm not sure, if gete?id() is always correct, or if we should use
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get?id(). But since keyserv needs geteuid(), we have no other chance.
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It would be much better, if the kernel could pass both to the server. */
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cm.cmcred.pid = __getpid ();
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cm.cmcred.uid = __geteuid ();
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cm.cmcred.gid = __getegid ();
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cred.pid = __getpid ();
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cred.uid = __geteuid ();
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cred.gid = __getegid ();
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msg.msg_iov = iov;
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memcpy (CMSG_DATA(cmsg), &cred, sizeof (struct ucred));
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cmsg->cmsg_level = SOL_SOCKET;
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cmsg->cmsg_type = SCM_CREDENTIALS;
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cmsg->cmsg_len = sizeof(*cmsg) + sizeof(struct ucred);
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iov.iov_base = data;
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iov.iov_len = cnt;
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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msg.msg_name = NULL;
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msg.msg_namelen = 0;
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msg.msg_control = (caddr_t) &cm;
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msg.msg_controllen = sizeof (struct cmessage);
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msg.msg_control = cmsg;
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msg.msg_controllen = CMSG_ALIGN(cmsg->cmsg_len);
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msg.msg_flags = 0;
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return sendmsg (sock, &msg, 0);
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restart:
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len = sendmsg (sock, &msg, 0);
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if (len >= 0)
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return len;
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if (errno == EINTR)
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goto restart;
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return -1;
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#endif
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}
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@ -284,6 +284,8 @@ svcunix_destroy (SVCXPRT *xprt)
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struct cmessage {
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struct cmsghdr cmsg;
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struct ucred cmcred;
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/* hack to make sure we have enough memory */
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char dummy[(CMSG_ALIGN (sizeof (struct ucred)) - sizeof (struct ucred) + sizeof (long))];
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};
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/* XXX This is not thread safe, but since the main functions in svc.c
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@ -293,15 +295,16 @@ static struct cmessage cm;
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#endif
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static int
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__msgread (int sock, void *buf, size_t cnt)
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__msgread (int sock, void *data, size_t cnt)
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{
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struct iovec iov[1];
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struct iovec iov;
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struct msghdr msg;
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int len;
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iov[0].iov_base = buf;
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iov[0].iov_len = cnt;
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iov.iov_base = data;
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iov.iov_len = cnt;
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msg.msg_iov = iov;
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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msg.msg_name = NULL;
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msg.msg_namelen = 0;
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@ -319,42 +322,65 @@ __msgread (int sock, void *buf, size_t cnt)
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}
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#endif
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return recvmsg (sock, &msg, 0);
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restart:
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len = recvmsg (sock, &msg, 0);
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if (len >= 0)
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{
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if (msg.msg_flags & MSG_CTRUNC || len == 0)
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return 0;
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else
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return len;
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}
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if (errno == EINTR)
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goto restart;
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return -1;
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}
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static int
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__msgwrite (int sock, void *buf, size_t cnt)
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__msgwrite (int sock, void *data, size_t cnt)
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{
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#ifndef SCM_CREDENTIALS
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/* We cannot implement this reliably. */
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__set_errno (ENOSYS);
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return -1;
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#else
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struct iovec iov[1];
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struct iovec iov;
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struct msghdr msg;
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struct cmsghdr *cmsg = &cm.cmsg;
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struct ucred cred;
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int len;
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iov[0].iov_base = buf;
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iov[0].iov_len = cnt;
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/* XXX I'm not sure, if gete?id() is always correct, or if we should use
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get?id(). But since keyserv needs geteuid(), we have no other chance.
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It would be much better, if the kernel could pass both to the server. */
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cred.pid = __getpid ();
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cred.uid = __geteuid ();
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cred.gid = __getegid ();
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cm.cmsg.cmsg_type = SCM_CREDENTIALS;
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cm.cmsg.cmsg_level = SOL_SOCKET;
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cm.cmsg.cmsg_len = sizeof (struct cmessage);
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/* XXX I'm not sure, if we really should use gete?id(), or get?id().
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It would be much better, if the kernel could pass both to the
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client. */
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cm.cmcred.pid = __getpid ();
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cm.cmcred.uid = __geteuid ();
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cm.cmcred.gid = __getegid ();
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memcpy (CMSG_DATA(cmsg), &cred, sizeof (struct ucred));
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cmsg->cmsg_level = SOL_SOCKET;
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cmsg->cmsg_type = SCM_CREDENTIALS;
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cmsg->cmsg_len = sizeof(*cmsg) + sizeof(struct ucred);
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msg.msg_iov = iov;
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iov.iov_base = data;
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iov.iov_len = cnt;
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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msg.msg_name = NULL;
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msg.msg_namelen = 0;
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msg.msg_control = (caddr_t) &cm;
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msg.msg_controllen = sizeof (struct cmessage);
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msg.msg_control = cmsg;
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msg.msg_controllen = CMSG_ALIGN(cmsg->cmsg_len);
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msg.msg_flags = 0;
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return sendmsg (sock, &msg, 0);
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restart:
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len = sendmsg (sock, &msg, 0);
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if (len >= 0)
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return len;
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if (errno == EINTR)
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goto restart;
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return -1;
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#endif
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}
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@ -446,8 +472,8 @@ svcunix_recv (SVCXPRT *xprt, struct rpc_msg *msg)
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{
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cd->x_id = msg->rm_xid;
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/* set up verifiers */
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msg->rm_call.cb_verf.oa_flavor = AUTH_UNIX;
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#ifdef SCM_CREDENTIALS
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msg->rm_call.cb_verf.oa_flavor = AUTH_UNIX;
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msg->rm_call.cb_verf.oa_base = (caddr_t) &cm;
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msg->rm_call.cb_verf.oa_length = sizeof (cm);
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#endif
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