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authorSean Hefty <sean.hefty@intel.com>2013-05-29 21:09:31 +0400
committerRoland Dreier <roland@purestorage.com>2013-06-21 10:35:43 +0400
commiteebe4c3a62aadb64ba30bde97b96d656e369d934 (patch)
treebee1a741899b80595855bfcbc0e67b4df24c0983 /drivers/infiniband
parent05ad94577ecd5a101889d04aa099b738ec5ee34f (diff)
downloadlinux-eebe4c3a62aadb64ba30bde97b96d656e369d934.tar.xz
RDMA/ucma: Allow user space to bind to AF_IB
Support user space binding to addresses using AF_IB. Since sockaddr_ib is larger than sockaddr_in6, we need to define a larger structure when binding using AF_IB. This time we use sockaddr_storage to cover future cases. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/core/ucma.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 82fb1e6e1384..22ed97ef7da3 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -531,6 +531,30 @@ static ssize_t ucma_bind_ip(struct ucma_file *file, const char __user *inbuf,
return ret;
}
+static ssize_t ucma_bind(struct ucma_file *file, const char __user *inbuf,
+ int in_len, int out_len)
+{
+ struct rdma_ucm_bind cmd;
+ struct sockaddr *addr;
+ struct ucma_context *ctx;
+ int ret;
+
+ if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+ return -EFAULT;
+
+ addr = (struct sockaddr *) &cmd.addr;
+ if (cmd.reserved || !cmd.addr_size || (cmd.addr_size != rdma_addr_size(addr)))
+ return -EINVAL;
+
+ ctx = ucma_get_ctx(file, cmd.id);
+ if (IS_ERR(ctx))
+ return PTR_ERR(ctx);
+
+ ret = rdma_bind_addr(ctx->cm_id, addr);
+ ucma_put_ctx(ctx);
+ return ret;
+}
+
static ssize_t ucma_resolve_ip(struct ucma_file *file,
const char __user *inbuf,
int in_len, int out_len)
@@ -1398,7 +1422,8 @@ static ssize_t (*ucma_cmd_table[])(struct ucma_file *file,
[RDMA_USER_CM_CMD_JOIN_IP_MCAST] = ucma_join_ip_multicast,
[RDMA_USER_CM_CMD_LEAVE_MCAST] = ucma_leave_multicast,
[RDMA_USER_CM_CMD_MIGRATE_ID] = ucma_migrate_id,
- [RDMA_USER_CM_CMD_QUERY] = ucma_query
+ [RDMA_USER_CM_CMD_QUERY] = ucma_query,
+ [RDMA_USER_CM_CMD_BIND] = ucma_bind
};
static ssize_t ucma_write(struct file *filp, const char __user *buf,