search for: compression_buff

...d; @@ -604,11 +615,11 @@ ssh_packet_close_internal(struct ssh *ssh, int do_close) state->newkeys[mode] = NULL; ssh_clear_newkeys(ssh, mode); /* next keys */ } -#ifdef WITH_ZLIB /* compression state is in shared mem, so we can only release it once */ if (do_close && state->compression_buffer) { sshbuf_free(state->compression_buffer); - if (state->compression_out_started) { +#ifdef WITH_ZLIB + if (state->compression_out_started == COMP_ZLIB) { z_streamp stream = &state->compression_out_stream; debug("compress outgoing: " "raw data %l...

I added ZSTD support to OpenSSH roughly three years ago and I've been playing with it ever since. The nice part is that ZSTD achieves reasonable compression (like zlib) but consumes little CPU so it is unlikely that compression becomes the bottle neck of a transfer. The compression overhead (CPU) is negligible even when uncompressed data is tunneled over the SSH connection (SOCKS proxy, port

I hacked zstd support into OpenSSH a while ago and just started to clean it up in the recent days. The cleanup includes configuration support among other things that I did not have. During testing I noticed the following differences compared to zlib: - highly interactive shell output (as in refreshed at a _very_ high rate) may result in higher bandwidth compared to zlib. Since zstd is quicker

I added ZSTD support to OpenSSH roughly over a year and I've been playing with it ever since. The nice part is that ZSTD achieves reasonable compression (like zlib) but consumes little CPU so it is unlikely that compression becomes the bottle neck of a transfer. The compression overhead (CPU) is negligible even when uncompressed data is tunneled over the SSH connection (SOCKS proxy, port

...packet.c 27 Sep 2001 11:59:37 -0000 1.70 +++ packet.c 22 Oct 2001 18:36:47 -0000 @@ -96,12 +96,14 @@ /* Buffer for the incoming packet currently being processed. */ static Buffer incoming_packet; +#ifdef WITH_COMPRESSION /* Scratch buffer for packet compression/decompression. */ static Buffer compression_buffer; static int compression_buffer_ready = 0; /* Flag indicating whether packet compression/decompression is enabled. */ static int packet_compression = 0; +#endif /* default maximum packet size */ int max_packet_size = 32768; @@ -233,10 +235,12 @@ buffer_free(&output); buffer_free(&...