Add rust net_device wrappers

Signed-off-by: Finn Behrens <me@kloenk.de>
Rust-for-Linux · Jul 10, 2021 · 3878bda · 3878bda
1 parent e97ba67
commit 3878bda
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Showing 12 changed files with 2,128 additions and 1 deletion.
diff --git a/rust/helpers.c b/rust/helpers.c
@@ -11,6 +11,9 @@
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
 #include <linux/security.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
 
 void rust_helper_BUG(void)
 {
@@ -212,6 +215,34 @@ int rust_helper_security_binder_transfer_file(struct task_struct *from,
 }
 EXPORT_SYMBOL_GPL(rust_helper_security_binder_transfer_file);
 
+void *rust_helper_netdev_priv(struct net_device *dev)
+{
+	return netdev_priv(dev);
+}
+EXPORT_SYMBOL_GPL(rust_helper_netdev_priv);
+
+void rust_helper_eth_hw_addr_random(struct net_device *dev)
+{
+	eth_hw_addr_random(dev);
+}
+EXPORT_SYMBOL_GPL(rust_helper_eth_hw_addr_random);
+
+int rust_helper_net_device_set_new_lstats(struct net_device *dev)
+{
+	dev->lstats = netdev_alloc_pcpu_stats(struct pcpu_lstats);
+	if (!dev->lstats)
+		return -ENOMEM;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rust_helper_net_device_set_new_lstats);
+
+void rust_helper_dev_lstats_add(struct net_device *dev, unsigned int len)
+{
+	dev_lstats_add(dev, len);
+}
+EXPORT_SYMBOL_GPL(rust_helper_dev_lstats_add);
+
 /* We use bindgen's --size_t-is-usize option to bind the C size_t type
  * as the Rust usize type, so we can use it in contexts where Rust
  * expects a usize like slice (array) indices. usize is defined to be

diff --git a/rust/kernel/bindings_helper.h b/rust/kernel/bindings_helper.h
@@ -18,7 +18,15 @@
 #include <linux/platform_device.h>
 #include <linux/of_platform.h>
 #include <linux/security.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/etherdevice.h>
+#include <linux/netdev_features.h>
+#include <linux/rtnetlink.h>
+#include <net/rtnetlink.h>
 
 // `bindgen` gets confused at certain things
 const gfp_t BINDINGS_GFP_KERNEL = GFP_KERNEL;
 const gfp_t BINDINGS___GFP_ZERO = __GFP_ZERO;
+
+const int BINDINGS_NLA_HDRLEN = NLA_HDRLEN;
diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs
@@ -44,6 +44,7 @@ mod error;
 pub mod file;
 pub mod file_operations;
 pub mod miscdev;
+pub mod net;
 pub mod pages;
 pub mod security;
 pub mod str;
@@ -78,7 +79,7 @@ pub mod user_ptr;
 pub use build_error::build_error;
 
 pub use crate::error::{Error, Result};
-pub use crate::types::{Mode, ScopeGuard};
+pub use crate::types::{Mode, SavedAsPointer, SavedAsPointerMut, ScopeGuard};
 
 /// Page size defined in terms of the `PAGE_SHIFT` macro from C.
 ///