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authorDavid Howells <dhowells@redhat.com>2019-06-26 21:02:33 +0100
committerDavid Howells <dhowells@redhat.com>2019-06-27 23:02:12 +0100
commita58946c158a040068e7c94dc1d58bbd273258068 (patch)
treee655258b700359cdfd9f762c099b7587dc0eed9b /fs
parent9b242610514fe387ef957bce05e1fdd3efd60359 (diff)
downloadlinux-a58946c158a040068e7c94dc1d58bbd273258068.tar.bz2
keys: Pass the network namespace into request_key mechanism
Create a request_key_net() function and use it to pass the network namespace domain tag into DNS revolver keys and rxrpc/AFS keys so that keys for different domains can coexist in the same keyring. Signed-off-by: David Howells <dhowells@redhat.com> cc: netdev@vger.kernel.org cc: linux-nfs@vger.kernel.org cc: linux-cifs@vger.kernel.org cc: linux-afs@lists.infradead.org
Diffstat (limited to 'fs')
-rw-r--r--fs/afs/addr_list.c4
-rw-r--r--fs/afs/dynroot.c8
-rw-r--r--fs/cifs/dns_resolve.c3
-rw-r--r--fs/nfs/dns_resolve.c3
-rw-r--r--fs/nfs/nfs4idmap.c2
5 files changed, 12 insertions, 8 deletions
diff --git a/fs/afs/addr_list.c b/fs/afs/addr_list.c
index 9eaff55df7b4..6b1e8fc6c954 100644
--- a/fs/afs/addr_list.c
+++ b/fs/afs/addr_list.c
@@ -250,8 +250,8 @@ struct afs_vlserver_list *afs_dns_query(struct afs_cell *cell, time64_t *_expiry
_enter("%s", cell->name);
- ret = dns_query("afsdb", cell->name, cell->name_len, "srv=1",
- &result, _expiry, true);
+ ret = dns_query(cell->net->net, "afsdb", cell->name, cell->name_len,
+ "srv=1", &result, _expiry, true);
if (ret < 0) {
_leave(" = %d [dns]", ret);
return ERR_PTR(ret);
diff --git a/fs/afs/dynroot.c b/fs/afs/dynroot.c
index af1689d1f32e..b075605b0c45 100644
--- a/fs/afs/dynroot.c
+++ b/fs/afs/dynroot.c
@@ -28,6 +28,7 @@ const struct file_operations afs_dynroot_file_operations = {
static int afs_probe_cell_name(struct dentry *dentry)
{
struct afs_cell *cell;
+ struct afs_net *net = afs_d2net(dentry);
const char *name = dentry->d_name.name;
size_t len = dentry->d_name.len;
int ret;
@@ -40,13 +41,14 @@ static int afs_probe_cell_name(struct dentry *dentry)
len--;
}
- cell = afs_lookup_cell_rcu(afs_d2net(dentry), name, len);
+ cell = afs_lookup_cell_rcu(net, name, len);
if (!IS_ERR(cell)) {
- afs_put_cell(afs_d2net(dentry), cell);
+ afs_put_cell(net, cell);
return 0;
}
- ret = dns_query("afsdb", name, len, "srv=1", NULL, NULL, false);
+ ret = dns_query(net->net, "afsdb", name, len, "srv=1",
+ NULL, NULL, false);
if (ret == -ENODATA)
ret = -EDESTADDRREQ;
return ret;
diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c
index 1e21b2528cfb..534cbba72789 100644
--- a/fs/cifs/dns_resolve.c
+++ b/fs/cifs/dns_resolve.c
@@ -77,7 +77,8 @@ dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
goto name_is_IP_address;
/* Perform the upcall */
- rc = dns_query(NULL, hostname, len, NULL, ip_addr, NULL, false);
+ rc = dns_query(current->nsproxy->net_ns, NULL, hostname, len,
+ NULL, ip_addr, NULL, false);
if (rc < 0)
cifs_dbg(FYI, "%s: unable to resolve: %*.*s\n",
__func__, len, len, hostname);
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index e6a700f01452..aec769a500a1 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -22,7 +22,8 @@ ssize_t nfs_dns_resolve_name(struct net *net, char *name, size_t namelen,
char *ip_addr = NULL;
int ip_len;
- ip_len = dns_query(NULL, name, namelen, NULL, &ip_addr, NULL, false);
+ ip_len = dns_query(net, NULL, name, namelen, NULL, &ip_addr, NULL,
+ false);
if (ip_len > 0)
ret = rpc_pton(net, ip_addr, ip_len, sa, salen);
else
diff --git a/fs/nfs/nfs4idmap.c b/fs/nfs/nfs4idmap.c
index 4884fdae28fb..1e7296395d71 100644
--- a/fs/nfs/nfs4idmap.c
+++ b/fs/nfs/nfs4idmap.c
@@ -291,7 +291,7 @@ static struct key *nfs_idmap_request_key(const char *name, size_t namelen,
if (IS_ERR(rkey)) {
mutex_lock(&idmap->idmap_mutex);
rkey = request_key_with_auxdata(&key_type_id_resolver_legacy,
- desc, "", 0, idmap);
+ desc, NULL, "", 0, idmap);
mutex_unlock(&idmap->idmap_mutex);
}
if (!IS_ERR(rkey))