[pull] master from shadowsocks:master#132
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Add bswap_data() to swap buffer pointers instead of copying, replace brealloc+memcpy with pointer swaps in aead and stream codecs, add in-place fast paths for non-Salsa20 stream ciphers, and use index tracking instead of memmove in aead_decrypt chunked reassembly. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The idx-tracking optimization in aead_decrypt skipped memmove when partial AEAD chunks spanned multiple calls, but never compacted the dead space before idx. This caused the chunk buffer to grow proportionally to total data transferred (~10 MB growth per 10 MB transferred), tripping the stress test memory leak threshold. Compact residual data to the front when appending new ciphertext, keeping the buffer bounded to the size of the residual plus new data. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…action Fix unbounded buffer growth in aead_decrypt chunk reassembly
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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