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net/rpmsg: get credentials between client and server

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Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
This commit is contained in:
dongjiuzhu1 2023-04-20 20:39:13 +08:00 committed by Xiang Xiao
parent c2e1aa281d
commit 9a22741e32
1 changed files with 46 additions and 0 deletions
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46
net/rpmsg/rpmsg_sockif.c
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@ -29,6 +29,7 @@
#include <stdio.h>
#include <string.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <debug.h>
#include <nuttx/kmalloc.h>
@ -63,6 +64,9 @@ begin_packed_struct struct rpmsg_socket_sync_s
{
uint32_t cmd;
uint32_t size;
uint32_t pid;
uint32_t uid;
uint32_t gid;
} end_packed_struct;
begin_packed_struct struct rpmsg_socket_data_s
@ -111,6 +115,10 @@ struct rpmsg_socket_conn_s
int backlog;
/* The remote connection's credentials */
struct ucred cred;
/* Flow control, descript send side */
uint32_t sendsize;
@ -151,6 +159,11 @@ static ssize_t rpmsg_socket_recvmsg(FAR struct socket *psock,
static int rpmsg_socket_close(FAR struct socket *psock);
static int rpmsg_socket_ioctl(FAR struct socket *psock,
int cmd, unsigned long arg);
#ifdef CONFIG_NET_SOCKOPTS
static int rpmsg_socket_getsockopt(FAR struct socket *psock,
int level, int option, FAR void *value,
FAR socklen_t *value_len);
#endif
/****************************************************************************
* Public Data
@ -172,6 +185,12 @@ const struct sock_intf_s g_rpmsg_sockif =
rpmsg_socket_recvmsg, /* si_recvmsg */
rpmsg_socket_close, /* si_close */
rpmsg_socket_ioctl, /* si_ioctl */
NULL, /* si_socketpair */
NULL /* si_shutdown */
#ifdef CONFIG_NET_SOCKOPTS
, rpmsg_socket_getsockopt /* si_getsockopt */
, NULL /* si_setsockopt */
#endif
};
/****************************************************************************
@ -284,6 +303,9 @@ static int rpmsg_socket_ept_cb(FAR struct rpmsg_endpoint *ept,
{
nxmutex_lock(&conn->recvlock);
conn->sendsize = head->size;
conn->cred.pid = head->pid;
conn->cred.uid = head->uid;
conn->cred.gid = head->gid;
conn->sconn.s_flags |= _SF_CONNECTED;
@ -402,6 +424,9 @@ static void rpmsg_socket_ns_bound(struct rpmsg_endpoint *ept)
msg.cmd = RPMSG_SOCKET_CMD_SYNC;
msg.size = circbuf_size(&conn->recvbuf);
msg.pid = nxsched_getpid();
msg.uid = getuid();
msg.gid = getgid();
rpmsg_send(&conn->ept, &msg, sizeof(msg));
}
@ -1345,3 +1370,24 @@ static int rpmsg_socket_ioctl(FAR struct socket *psock,
return ret;
}
#ifdef CONFIG_NET_SOCKOPTS
static int rpmsg_socket_getsockopt(FAR struct socket *psock, int level,
int option, FAR void *value,
FAR socklen_t *value_len)
{
if (level == SOL_SOCKET && option == SO_PEERCRED)
{
FAR struct rpmsg_socket_conn_s *conn = psock->s_conn;
if (*value_len != sizeof(struct ucred))
{
return -EINVAL;
}
memcpy(value, &conn->cred, sizeof(struct ucred));
return OK;
}
return -ENOPROTOOPT;
}
#endif