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| author |   Sean Hefty <sean.hefty@intel.com> | 2013-05-29 10:09:31 -0700 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2013-06-20 23:35:43 -0700 |
| commit | eebe4c3a62aadb64ba30bde97b96d656e369d934 (patch) | |
| tree | bee1a741899b80595855bfcbc0e67b4df24c0983 /drivers/infiniband/core/ucma.c | |
| parent | RDMA/ucma: Name changes to indicate only IP addresses supported (diff) | |
| download | linux-dev-eebe4c3a62aadb64ba30bde97b96d656e369d934.tar.xz linux-dev-eebe4c3a62aadb64ba30bde97b96d656e369d934.zip | |
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/core/ucma.c')
| -rw-r--r-- | drivers/infiniband/core/ucma.c | 27 |
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, |