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144 commits

Author SHA1 Message Date
Con Kolivas 135067a0b4 Yet more #6 BE fixes. 2011-03-21 20:33:43 +11:00
Con Kolivas 279b745cd7 Yet #5 more BE fixes. 2011-03-21 20:31:33 +11:00
Con Kolivas 637b0d5f7c yet yet yet yet more BE fixes. 2011-03-21 20:29:24 +11:00
Con Kolivas 04d3d6a1f5 Read BE fixes. 2011-03-21 20:23:36 +11:00
Con Kolivas 06a76bc4aa Revert "More big endian fixes." 
This reverts commit edbcc797e0.

Broke regression text. Needs more attention.
 2011-03-21 19:01:24 +11:00
Con Kolivas edbcc797e0 More big endian fixes. 2011-03-21 12:41:36 +11:00
Con Kolivas 280254b8cb Forgot to remove the initial pos offset. 2011-03-21 12:34:57 +11:00
Con Kolivas fd9bbfe64a One last check on limit. 2011-03-21 07:33:35 +11:00
Con Kolivas f87528d14d Forgot to include salt length for next head. 2011-03-20 17:01:33 +11:00
Con Kolivas 30b70dc884 Fixes for non little endian machines. 2011-03-20 16:16:38 +11:00
Con Kolivas 0dad7dcc5a Modify the encrypted version to not write down the rzip chunk size, then keep track of where each block header is written, go back and write 8 bytes of salt before it and encrypt the headers in place. 2011-03-20 15:45:44 +11:00
Con Kolivas e7d33e82d0 Make read_1g able to read from the tmp outbuf if we decide to read from fd_out. 2011-03-19 14:46:06 +11:00
Con Kolivas ff5a5ed054 Use separate lrz_encrypt and lrz_decrypt wrappers to lrz_crypt. 2011-03-19 14:04:22 +11:00
Con Kolivas 63fb1bafea Modify the file format further to make all block header information only encode the number of bytes determined in chunk_bytes instead of 8 full bytes all the time. 2011-03-18 23:18:36 +11:00
ckolivas b8d8ecfe33 Fix warnings. 
Patch ~ by Serge Belyshev.
 2011-03-18 10:37:09 +11:00
ckolivas e856d481bf Discard hash_iv entirely, using passphrase hash and centralise key generation. 
Patch by Serge Belyshev.
 2011-03-18 10:22:58 +11:00
Con Kolivas a3e80871c2 Add 8 bytes of random data to the start of every encrypted compressed block and use it along with 8 bytes from the stored salt to make a unique key and IV for encryption. 2011-03-18 00:06:11 +11:00
ckolivas e78069c0d7 Consolidate magic writing to be able to seek to read and encrypt block header data later. 2011-03-17 16:59:27 +11:00
ckolivas 4bc23ee001 Centralise where all encryption/decryption is done, and whether to carry over the IV or not. 2011-03-17 14:10:58 +11:00
ckolivas 660243b8dc Pad out first block if less than CBC_LEN and encrypting or else encryption will fail. 2011-03-17 11:19:34 +11:00
Con Kolivas 76280ffec5 Mlock ivec for it will hold the injection vector. 2011-03-17 00:25:15 +11:00
Con Kolivas a7468ce6e4 Fail if block to encrypt ends up being less than one full block for now, and tidy up code. 2011-03-16 23:13:09 +11:00
Con Kolivas c41cfe9e83 Some decompression code needs more room so simply allocate u_len for s_buf. 2011-03-16 21:48:21 +11:00
Con Kolivas 5fd7c82e1f Implement ciphertext stealing to not have to pad compressed blocks courtesy of Serge Belyshev who saved me hours of debugging thanks! 2011-03-16 21:24:05 +11:00
Con Kolivas 928a0a098a Consolidate padded length throughout. 2011-03-16 10:29:16 +11:00
Con Kolivas bedea4dbec Consolidate cbc padding into a macro. 2011-03-16 10:17:48 +11:00
Con Kolivas ddcc45ebf0 Revert "aes_crypt_cbc always returns zero so ignore its return value." 
This reverts commit 4314970b0d.

Oops, it can return invalid length.
 2011-03-16 10:00:20 +11:00
Con Kolivas 2d2a9bc1e9 We're freeing the wrong buffer by mistake should decompression fail. 2011-03-16 09:50:30 +11:00
Con Kolivas 4314970b0d aes_crypt_cbc always returns zero so ignore its return value. 2011-03-16 08:39:05 +11:00
Con Kolivas 519123966a total_read field is no longer used. 2011-03-16 08:32:16 +11:00
Con Kolivas 5da0633893 aes_crypt_cbc will allow you to work on the same buffer, so don't bother allocating a separate buffer. 
Allocate slightly more on the buffer that might be used for encryption rather than reallocing.
 2011-03-16 00:46:39 +11:00
Con Kolivas c5938c6a8b Implement the actual aes cbc encryption and decryption. 2011-03-15 23:52:39 +11:00
ckolivas 65a681a254 Relative offset is not required in tmp inbuf, it can be safely zeroed. 2011-03-15 11:21:26 +11:00
Con Kolivas 3a8c0b6689 Remove seeks that aren't required and don't work on tmp input buffers. 
Clean up open_stream_in.
 2011-03-14 21:51:27 +11:00
Con Kolivas c832e80085 More infrastructure to read from temporary buffers on stdin decompression. 2011-03-14 21:19:57 +11:00
Con Kolivas 36e09f206e Begin massive read changes to support using temporary file for STDIN. 2011-03-14 20:22:45 +11:00
Con Kolivas 684959efed Add fields for temporary input buffer and clamp memory accordingly in preparation. 2011-03-14 14:47:26 +11:00
Con Kolivas 5f7a03932b Calculate the total expected size progressively and show it when it's not known. 2011-03-14 13:32:36 +11:00
Con Kolivas 9e772d3140 Make ALL decompression use temporary in-ram buffer whenever possible. 2011-03-14 12:48:40 +11:00
Con Kolivas 27d7c2a031 Tidy. 2011-03-14 12:23:12 +11:00
Con Kolivas 0fe3213a47 Write to physical files if we cannot fit the decompression in ram. 2011-03-14 12:15:54 +11:00
Con Kolivas 37009e2ac5 Make sure to read on an fd if that's what we're supposed to be doing. 2011-03-14 11:25:04 +11:00
Con Kolivas b644240152 write_1g always uses control->fd_out so don't pass fd to it. 2011-03-14 11:15:35 +11:00
Con Kolivas 4a6fa7602f Begin decompressing to stdout via temporary buffer by creating a read/write wrapper. 2011-03-14 10:07:51 +11:00
Con Kolivas f2ddd9022c Ignore the eof flag if the file size is known. 2011-03-13 21:31:03 +11:00
Con Kolivas 8756fe91e2 Enable decompression when file has been chunked stdout and display progress only when expected size is known. 2011-03-13 17:52:23 +11:00
Con Kolivas 6d0ac95170 Remove extra locking that does nothing. 2011-03-13 12:12:37 +11:00
Con Kolivas 6ac74aa9f0 Create a flag to know when the temporary output buffer is in use, in preparation for when we use it on decompression. 2011-03-13 08:34:06 +11:00
Con Kolivas 2f87f62696 Make the tmp out buf slightly larger to account for incompressible data, and check for buffer overflows. 2011-03-13 08:16:46 +11:00
Con Kolivas 11ea12d3ce Forgot to test for TEST_ONLY. 2011-03-12 23:07:52 +11:00