diff --git a/build-aux/knet_valgrind_memcheck.supp b/build-aux/knet_valgrind_memcheck.supp
index e631e161..27bba569 100644
--- a/build-aux/knet_valgrind_memcheck.supp
+++ b/build-aux/knet_valgrind_memcheck.supp
@@ -1,588 +1,622 @@
 {
    lzma internal stuff
    Memcheck:Cond
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:lzma_stream_header_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:lzma_crc32
    fun:lzma_stream_header_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:lzma_crc32
    fun:lzma_stream_header_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:lzma_block_header_encode
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:is_overlap
    fun:memcpy@@GLIBC_2.14
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:memcpy@@GLIBC_2.14
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:memcpy@@GLIBC_2.14
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:lzma_vli_encode
    fun:lzma_filter_flags_encode
    fun:lzma_block_header_encode
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_filter_flags_encode
    fun:lzma_block_header_encode
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:memset
    fun:lzma_block_header_encode
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:memset
    fun:lzma_block_header_encode
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:lzma_block_unpadded_size
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:lzma_index_append
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:lzma_vli_size
    fun:lzma_index_append
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:lzma_index_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_index_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_index_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:lzma_vli_encode
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_index_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:lzma_vli_encode
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_index_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:lzma_crc32
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_index_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:lzma_crc32
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_index_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:lzma_stream_footer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Value8
    fun:lzma_crc32
    fun:lzma_stream_footer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    fun:lzma_crc32
    fun:lzma_stream_footer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
    fun:clone
 }
 {
    lzma internal stuff
    Memcheck:Cond
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    obj:/usr/lib64/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
 }
 {
    lzma internal stuff (Debian Unstable)
    Memcheck:Cond
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
 }
 {
    lzma internal stuff (Debian Experimental)
    Memcheck:Cond
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    obj:*/libknet/.libs/compress_lzma.so
    obj:*
 }
 {
    lzma internal stuff (Debian / Ubuntu)
    Memcheck:Cond
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    obj:/lib/x86_64-linux-gnu/liblzma.so.5.2.2
    fun:lzma_block_buffer_encode
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:compress_lib_test
    fun:compress_cfg
    fun:knet_handle_compress
    fun:test
 }
 {
    lzma internal stuff (Ubuntu 17.10 i386)
    Memcheck:Cond
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
    fun:start_thread
 }
 {
    lzma internal stuff (Ubuntu 17.10 i386)
    Memcheck:Cond
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:compress
    fun:_parse_recv_from_sock
    fun:_handle_send_to_links
    fun:_handle_send_to_links_thread
 }
 {
    lzma internal stuff (Ubuntu 17.10 i386)
    Memcheck:Cond
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    obj:/lib/i386-linux-gnu/liblzma.so.5.2.2
    fun:lzma_stream_buffer_encode
    fun:lzma_easy_buffer_encode
    fun:lzma_compress
    fun:compress_lib_test
    fun:compress_cfg
    fun:knet_handle_compress
 }
 {
    nss internal stuff (FreeBSD 11.1)
    Memcheck:Addr8
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    fun:PR_LoadLibraryWithFlags
    obj:/usr/local/lib/nss/libnssutil3.so
    fun:PORT_LoadLibraryFromOrigin
    obj:/usr/local/lib/nss/libnss3.so
    fun:PR_CallOnce
    obj:/usr/local/lib/nss/libnss3.so
 }
 {
    nss internal stuff (FreeBSD 11.1)
    Memcheck:Addr8
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    fun:PR_LoadLibraryWithFlags
    obj:/usr/local/lib/nss/libnssutil3.so
    fun:PORT_LoadLibraryFromOrigin
    obj:/usr/local/lib/nss/libnss3.so
    fun:PR_CallOnce
    obj:/usr/local/lib/nss/libnss3.so
    fun:SECMOD_LoadModule
    obj:/usr/local/lib/nss/libnss3.so
 }
+{
+   nss internal leak (3.38+) non recurring
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   obj:*
+   obj:*
+   obj:*
+   obj:*
+   obj:*
+   fun:init_nss
+   fun:nsscrypto_init
+   fun:crypto_init
+   fun:knet_handle_crypto
+   fun:test
+   fun:main
+}
+{
+   nss internal leak (3.38+) non recurring
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:calloc
+   obj:*
+   obj:*
+   obj:*
+   obj:*
+   obj:*
+   fun:init_nss
+   fun:nsscrypto_init
+   fun:crypto_init
+   fun:knet_handle_crypto
+   fun:test
+   fun:main
+}
 {
    openssl internal stuff (FreeBSD 11.1)
    Memcheck:Addr8
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    obj:/libexec/ld-elf.so.1
    obj:/usr/local/lib/libcrypto.so.10
    fun:DSO_load
    fun:DSO_dsobyaddr
    obj:/usr/local/lib/libcrypto.so.10
    fun:pthread_once
    fun:CRYPTO_THREAD_run_once
    fun:OPENSSL_init_crypto
    fun:opensslcrypto_init
 }