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-rw-r--r--fs/ceph/armor.c103
1 files changed, 0 insertions, 103 deletions
diff --git a/fs/ceph/armor.c b/fs/ceph/armor.c
deleted file mode 100644
index eb2a666b0be7..000000000000
--- a/fs/ceph/armor.c
+++ /dev/null
@@ -1,103 +0,0 @@
-
-#include <linux/errno.h>
-
-int ceph_armor(char *dst, const char *src, const char *end);
-int ceph_unarmor(char *dst, const char *src, const char *end);
-
-/*
- * base64 encode/decode.
- */
-
-static const char *pem_key =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-static int encode_bits(int c)
-{
- return pem_key[c];
-}
-
-static int decode_bits(char c)
-{
- if (c >= 'A' && c <= 'Z')
- return c - 'A';
- if (c >= 'a' && c <= 'z')
- return c - 'a' + 26;
- if (c >= '0' && c <= '9')
- return c - '0' + 52;
- if (c == '+')
- return 62;
- if (c == '/')
- return 63;
- if (c == '=')
- return 0; /* just non-negative, please */
- return -EINVAL;
-}
-
-int ceph_armor(char *dst, const char *src, const char *end)
-{
- int olen = 0;
- int line = 0;
-
- while (src < end) {
- unsigned char a, b, c;
-
- a = *src++;
- *dst++ = encode_bits(a >> 2);
- if (src < end) {
- b = *src++;
- *dst++ = encode_bits(((a & 3) << 4) | (b >> 4));
- if (src < end) {
- c = *src++;
- *dst++ = encode_bits(((b & 15) << 2) |
- (c >> 6));
- *dst++ = encode_bits(c & 63);
- } else {
- *dst++ = encode_bits((b & 15) << 2);
- *dst++ = '=';
- }
- } else {
- *dst++ = encode_bits(((a & 3) << 4));
- *dst++ = '=';
- *dst++ = '=';
- }
- olen += 4;
- line += 4;
- if (line == 64) {
- line = 0;
- *(dst++) = '\n';
- olen++;
- }
- }
- return olen;
-}
-
-int ceph_unarmor(char *dst, const char *src, const char *end)
-{
- int olen = 0;
-
- while (src < end) {
- int a, b, c, d;
-
- if (src < end && src[0] == '\n')
- src++;
- if (src + 4 > end)
- return -EINVAL;
- a = decode_bits(src[0]);
- b = decode_bits(src[1]);
- c = decode_bits(src[2]);
- d = decode_bits(src[3]);
- if (a < 0 || b < 0 || c < 0 || d < 0)
- return -EINVAL;
-
- *dst++ = (a << 2) | (b >> 4);
- if (src[2] == '=')
- return olen + 1;
- *dst++ = ((b & 15) << 4) | (c >> 2);
- if (src[3] == '=')
- return olen + 2;
- *dst++ = ((c & 3) << 6) | d;
- olen += 3;
- src += 4;
- }
- return olen;
-}