RPM build fix (reverted CI changes which will need to be un-reverted or made conditional) and vendor Rust dependencies to make builds much faster in any CI system.

zeroidc/vendor/ring/src/aead/shift.rs

@@ -0,0 +1,51 @@
+// Copyright 2018 Brian Smith.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+use super::block::{Block, BLOCK_LEN};
+
+#[cfg(target_arch = "x86")]
+pub fn shift_full_blocks<F>(in_out: &mut [u8], in_prefix_len: usize, mut transform: F)
+where
+    F: FnMut(&[u8; BLOCK_LEN]) -> Block,
+{
+    use core::convert::TryFrom;
+
+    let in_out_len = in_out.len().checked_sub(in_prefix_len).unwrap();
+
+    for i in (0..in_out_len).step_by(BLOCK_LEN) {
+        let block = {
+            let input =
+                <&[u8; BLOCK_LEN]>::try_from(&in_out[(in_prefix_len + i)..][..BLOCK_LEN]).unwrap();
+            transform(input)
+        };
+        let output = <&mut [u8; BLOCK_LEN]>::try_from(&mut in_out[i..][..BLOCK_LEN]).unwrap();
+        *output = *block.as_ref();
+    }
+}
+
+pub fn shift_partial<F>((in_prefix_len, in_out): (usize, &mut [u8]), transform: F)
+where
+    F: FnOnce(&[u8]) -> Block,
+{
+    let (block, in_out_len) = {
+        let input = &in_out[in_prefix_len..];
+        let in_out_len = input.len();
+        if in_out_len == 0 {
+            return;
+        }
+        debug_assert!(in_out_len < BLOCK_LEN);
+        (transform(input), in_out_len)
+    };
+    in_out[..in_out_len].copy_from_slice(&block.as_ref()[..in_out_len]);
+}