HAPEE-LB

Changelog

version 1.7r1



2018/01/18 : 1.7r1 (1.0.0-178.345)
    - Revert "BUG/MINOR: checks: Don't forget to release the connection on error case."

2017/12/07 : 1.7r1 (1.0.0-178.344)
    - BUG/MAJOR: http: fix buffer overflow on loguri buffer.
    - MINOR: log: Add logurilen tunable.

2017/11/13 : 1.7r1 (1.0.0-177.342)
    - MINOR: server: Handle weight increase in consistent hash.
    - BUG/MINOR: mailers: Fix a memory leak when email alerts are released
    - BUG/MINOR: stream-int: don't set MSG_MORE on SHUTW_NOW without AUTO_CLOSE
    - BUG/MINOR: checks: Don't forget to release the connection on error case.
    - BUG/MINOR: dns: Fix CLI keyword declaration
    - BUILD/MINOR: 51d: fix warning when building with 51Degrees release version 3.2.12.12
    - DOC: fix some typos
    - DOC: 51d: Updated git URL and instructions for getting Hash Trie data files.
    - DOC: 51d: add 51Degrees git URL that points to release version 3.2.12.12
    - BUG/MAJOR: stream-int: don't re-arm recv if send fails
    - BUG/MEDIUM: http: Return an error when url_dec sample converter failed
    - BUG/MINOR: tcp-check: don't initialize then break a connection starting with a comment
    - BUG/MEDIUM: tcp-check: don't call tcpcheck_main() from the I/O handlers!
    - BUG/MINOR: tcp-check: don't quit with pending data in the send buffer
    - BUG/MEDIUM: tcp-check: properly indicate polling state before performing I/O
    - BUG/MEDIUM: tcp/http: set-dst-port action broken
    - BUG/MINOR: contrib/halog: fixing small memory leak
    - BUG/MINOR: log: fixing small memory leak in error code path.
    - BUG/MINOR: compression: Check response headers before http-response rules eval
    - BUG/MEDIUM: compression: Fix check on txn in smp_fetch_res_comp_algo
    - BUG/MINOR: Lua: The socket may be destroyed when we try to access.
    - BUG/MEDIUM: http: Close streams for connections closed before a redirect
    - BUG/MEDIUM: epoll: ensure we always consider HUP and ERR
    - BUG/MEDIUM: http: Fix a regression bug when a HTTP response is in TUNNEL mode
    - BUG/MEDIUM: stream: properly set the required HTTP analysers on use-service
    - BUG/MEDIUM: lua: HTTP services must take care of body-less status codes
    - BUG/MINOR: lua: Fix bitwise logic for hlua_server_check_* functions.
    - BUG/MAJOR: http: Fix possible infinity loop in http_sync_(req|res)_state
    - BUG/MEDIUM: http: Switch HTTP responses in TUNNEL mode when body length is undefined
    - MINOR: http: Switch requests/responses in TUNNEL mode only by checking txn flags
    - MINOR: http: Reorder/rewrite checks in http_resync_states

2017/10/06 : 1.7r1 (1.0.0-176.311)
    - BUG/MEDIUM: connection: remove useless flag CO_FL_DATA_RD_SH

2017/10/04 : 1.7r1 (1.0.0-176.310)
    - BUG/MEDIUM: cli: fix "show fd" crash when dumping closed FDs
    - BUILD/MINOR: cli: shut a minor gcc warning in "show fd"
    - MINOR: peers: Add additional information to stick-table definition messages.

2017/08/28 : 1.7r1 (1.0.0-176.307)

2017/07/31 : 1.7r1 (1.0.0-174.307)
    - MINOR: cli: add a new "show fd" command
    - MINOR: listener: add a function to return a listener's state as a string
    - DOC: fix alphabetical order of "show commands" in management.txt
    - MINOR: cli: add two general purpose pointers and integers in the CLI struct
    - MINOR: lua: Add lists of frontends and backends
    - DOC: lua: Proxy class doc update
    - MINOR: lua: Add proxy as member of proxy object.
    - BUG/MINOR: lua: always detach the tcp/http tasks before freeing them
    - BUG/MINOR: lua: Correctly use INET6_ADDRSTRLEN in Server.get_addr()
    - BUG/MINOR: lua: Fix Server.get_addr() port values
    - BUG/MINOR: http: Set the response error state in http_sync_res_state
    - DOC: Updated 51Degrees git URL to point to a stable version.
    - BUILD: lua: replace timegm() with my_timegm() to fix build on Solaris 10
    - MINOR: tools: add a portable timegm() alternative
    - DOC: update the list of OpenSSL versions in the README
    - DOC: update CONTRIBUTING regarding optional parts and message format
    - BUG/MEDIUM: lua: bad memory access
    - BUG/MAJOR: lua/socket: resources not detroyed when the socket is aborted
    - BUG/MINOR: lua: executes the function destroying the Lua session in safe mode
    - BUG/MINOR: lua: In error case, the safe mode is not removed
    - BUG/MINOR: peers: peer synchronization issue (with several peers sections).
    - BUG/MINOR: http: properly handle all 1xx informational responses

2017/07/07 : 1.7r1 (1.0.0-172.285)
    - BUG/MEDIUM: filters: Be sure to call flt_end_analyze for both channels
    - BUG/MINOR: http: Don't reset the transaction if there are still data to send
    - BUG/MINOR: stream: Don't forget to remove CF_WAKE_ONCE flag on response channel
    - BUG/MEDIUM: map/acl: fix unwanted flags inheritance.
    - DOC: fix references to the section about time format.
    - BUG/MAJOR: compression: Be sure to release the compression state in all cases
    - BUG/MAJOR: map: fix segfault during 'show map/acl' on cli.
    - BUG/MAJOR: cli: fix custom io_release was crushed by NULL.
    - BUG/MINOR: stream: flag TASK_WOKEN_RES not set if task in runqueue
    - BUG/MINOR: log: pin the front connection when front ip/ports are logged
    - BUG/MINOR: haproxy/cli : fix for solaris/illumos distros for CMSG* macros
    - SCRIPTS: create-release: enforce GIT_COMMITTER_{NAME|EMAIL} validity
    - scripts: create-release pass -n to tail
    - BUG/MAJOR: server: Segfault after parsing server state file.
    - BUG/MEDIUM: peers: Peers CLOSE_WAIT issue.
    - BUG/MINOR: http/filters: Be sure to wait if a filter loops in HTTP_MSG_ENDING
    - BUG/MINOR: acls: Set the right refflag when patterns are loaded from a map
    - BUG/MINOR: buffers: Fix bi/bo_contig_space to handle full buffers
    - DOC: fix references to the section about the unix socket
    - BUG/MEDIUM: cfgparse: Check if tune.http.maxhdr is in the range 1..32767
    - BUG/MEDIUM: http: Drop the connection establishment when a redirect is performed
    - BUG/MINOR: Wrong peer task expiration handling during synchronization processing.
    - BUG/MEDIUM: unix: never unlink a unix socket from the file system
    - MINOR: warning on multiple -x
    - BUG/MEDIUM: fix segfault when no argument to -x option

2017/06/14 : 1.7r1 (1.0.0-171.260)
    - DOC: Add documentation for new "server-template" keyword.
    - MINOR: server: Add server_template_init() function to initialize servers from a templates.
    - MINOR: server: Add 'server-template' new keyword supported in backend sections.
    - MINOR: server: Extract the code which finalizes server initializations after 'server' lines parsing.
    - MINOR: server: Extract the code responsible of copying default-server settings.
    - BUG/MAJOR: Broken parsing for valid keywords provided after 'source' setting.
    - BUG/MEDIUM: server: Wrong server default CRT filenames initialization.
    - DOC: server: Add docs for "server" and "default-server" new "no-*" and other settings.
    - MINOR: server: Add 'no-agent-check' server keyword.
    - MINOR: server: Make 'default-server' support 'disabled' keyword.
    - MINOR: server: Make 'default-server' support 'addr' keyword.
    - MINOR: server: Make 'default-server' support 'sni' keyword.
    - MINOR: server: Make 'default-server' support 'source' keyword.
    - MINOR: server: Make 'default-server' support 'namespace' keyword.
    - MINOR: server: Make 'default-server' support 'tcp-ut' keyword.
    - MINOR: server: Make 'default-server' support 'ciphers' keyword.
    - MINOR: server: Make 'default-server' support 'cookie' keyword.
    - MINOR server: Restrict dynamic cookie check to the same proxy.
    - CLEANUP: config: Typo in comment.
    - BUG/MEDIUM server: Fix crash when dynamic is defined, but not key is provided.
    - MINOR: cli: Let configure the dynamic cookies from the cli.
    - MINOR: server: Add dynamic session cookies.
    - MINOR: server: Make 'default-server' support 'observe' keyword.
    - MINOR: server: Make 'default-server' support 'redir' keyword.
    - MINOR: server: Make 'default-server' support 'ca-file', 'crl-file' and 'crt' settings.
    - MINOR: server: Make 'default-server' support 'track' setting.
    - MINOR: server: Make 'default-server' support 'check' keyword.
    - MINOR: server: Make 'default-server' support 'verifyhost' setting.
    - MINOR: server: Make 'default-server' support 'verify' keyword.
    - CLEANUP: server: code alignement.
    - MINOR: server: Make 'default-server' support 'send-proxy-v2-ssl*' keywords.
    - MINOR: server: Make 'default-server' support 'ssl' keyword.
    - MINOR: server: Make 'default-server' support 'no-ssl*' and 'no-tlsv*' keywords.
    - CLEANUP: server: code alignement.
    - MINOR: server: Make 'default-server' support 'force-sslv3' and 'force-tlsv1[0-2]' keywords.
    - MINOR: server: Make 'default-server' support 'check-ssl' keyword.
    - MINOR: server: Make 'default-server' support 'send-proxy' and 'send-proxy-v2 keywords.
    - MINOR: server: Make 'default-server' support 'non-stick' keyword.
    - CLEANUP: server: code alignement.
    - MINOR: server: Make 'default-server' support 'check-send-proxy' keyword.
    - MINOR: server: Make 'default-server' support 'backup' keyword.
    - MINOR: server: move the use_ssl field out of the ifdef USE_OPENSSL
    - MINOR: cli: add 'expose-fd listeners' to pass listeners FDs
    - MINOR: cli: add ACCESS_LVL_MASK to store the access level
    - MINOR: systemd wrapper: add support for passing the -x option.
    - MINOR: socket transfer: Set a timeout on the socket.
    - MINOR: proxy: Don't close FDs if not our proxy.
    - MINOR: doc: document the -x flag
    - MINOR: tcp: When binding socket, attempt to reuse one from the old proc.
    - MINOR: global: Add an option to get the old listening sockets.
    - MINOR: cli: Add a command to send listening sockets.
    - BUG/MAJOR: http: call manage_client_side_cookies() before erasing the buffer
    - BUG/MINOR: Makefile: fix compile error with USE_LUA=1 in ubuntu16.04
    - BUG/MEDIUM: lua: segfault if a converter or a sample doesn't return anything
    - BUG/MAJOR: dns: Broken kqueue events handling (BSD systems).
    - BUG/MINOR: checks: don't send proxy protocol with agent checks
    - DOC: update RFC references
    - BUG/MINOR: http: Fix conditions to clean up a txn and to handle the next request
    - MINOR/DOC: lua: just precise one thing
    - BUG/MINOR: hash-balance-factor isn't effective in certain circumstances
    - MEDIUM: config: don't check config validity when there are fatal errors
    - BUG/MEDIUM: lua: memory leak
    - DOC: errloc/errorloc302/errorloc303 missing status codes.
    - DOC: add layer 4 links/cross reference to "block" keyword.
    - BUG/MINOR: server: missing default server 'resolvers' setting duplication.
    - BUG/MINOR: server: don't use "proxy" when px is really meant.
    - BUG/MAJOR: Use -fwrapv.
    - BUG/MEDIUM: acl: proprely release unused args in prune_acl_expr()
    - CLEANUP: logs: typo: simgle => single
    - MINOR: lua: ensure the memory allocator is used all the time
    - BUG/MEDIUM: acl: don't free unresolved args in prune_acl_expr()
    - BUG/MEDIUM: arg: ensure that we properly unlink unresolved arguments on error
    - BUG/MINOR: arg: don't try to add an argument on failed memory allocation
    - BUG/MINOR: config: missing goto out after parsing an incorrect ACL character
    - BUG/MINOR: dns: Wrong address family used when creating IPv6 sockets.
    - DOC: stick-table is available in frontend sections
    - DOC: mention lighttpd 1.4.46 implements PROXY
    - DOC: update sample code for PROXY protocol
    - DOC: add few comments to examples.
    - DOC: changed "block"(deprecated) examples to http-request deny

2017/04/10 : 1.7r1 (1.0.0-163.180)

2017/04/07 : 1.7r1 (1.0.0-162.180)
    - MINOR: config parsing: add warning when log-format/tcplog/httplog is overriden in "defaults" sections
    - DOC: log-format/tcplog/httplog update
    - DOC: update the contributing file
    - DOC: fix parenthesis and add missing "Example" tags
    - BUG/MINOR: filters: Don't force the stream's wakeup when we wait in flt_end_analyze
    - BUG/MEDIUM: http: Fix blocked HTTP/1.0 responses when compression is enabled
    - BUG/MEDIUM: buffers: Fix how input/output data are injected into buffers
    - BUG/MEDIUM: peers: fix buffer overflow control in intdecode.
    - BUILD: scripts: fix typo in announce-release error message
    - BUILD: make the release script use shortlog for the final changelog

2017/03/27 : 1.7r1 (1.0.0-160.170)
    - MINOR: Add hostname sample fetch
    - CLEANUP: Replace repeated code to count usable servers with be_usable_srv()
    - MINOR: Add nbsrv sample converter
    - BUG/MEDIUM: tcp: don't require privileges to bind to device
    - MINOR: doc: fix use-server example (imap vs mail)
    - MINOR: server: irrelevant error message with 'default-server' config file keyword.
    - BUG/MINOR: cfgparse: loop in tracked servers lists not detected by check_config_validity().
    - MEDIUM: global: add a 'hard-stop-after' option to cap the soft-stop time
    - DOC: Protocol doc: add noop TLV
    - DOC: Protocol doc: add SSL TLVs, rename CHECKSUM
    - DOC: Protocol doc: add checksum, TLV type ranges
    - DOC/MINOR: Fix typos in proxy protocol doc
    - OPTIM: poll: enable support for POLLRDHUP
    - BUG/MINOR: raw_sock: always perfom the last recv if RDHUP is not available
    - MINOR: fd: add a new flag HAP_POLL_F_RDHUP to struct poller
    - BUG/MEDIUM: stream: fix client-fin/server-fin handling
    - MINOR: doc: 2.4. Examples should be 2.5. Examples
    - BUG/MAJOR: http: fix typo in http_apply_redirect_rule
    - BUG: payload: fix payload not retrieving arbitrary lengths
    - BUG/MEDIUM: connection: ensure to always report the end of handshakes
    - BUG/MAJOR: stream-int: do not depend on connection flags to detect connection
    - BUG/MEDIUM: filters: Fix channels synchronization in flt_end_analyze
    - BUG/MEDIUM: listener: do not try to rebind another process' socket
    - CONTRIB: tcploop: use the trash instead of NULL for recv()
    - CONTRIB: tcploop: fix connect's address length
    - CONTRIB: tcploop: report action 'K' (kill) in usage message
    - CONTRIB: tcploop: fix time format to silence build warnings
    - CONTRIB: tcploop: make it build on FreeBSD
    - CONTRIB: tcploop: add limits.h to fix build issue with some compilers
    - BUG/MINOR: checks: attempt clean shutw for SSL check
    - BUG/MEDIUM: ssl: switchctx should not return SSL_TLSEXT_ERR_ALERT_WARNING
    - BUG/MAJOR: connection: update CO_FL_CONNECTED before calling the data layer
    - BUG/MINOR: Fix "get map <map> <value>" CLI command
    - BUG/MEDIUM: cli: Prevent double free in CLI ACL lookup
    - BUG/MEDIUM: ssl: Clear OpenSSL error stack after trying to parse OCSP file
    - BUG/MINOR: spoe: Fix parsing of arguments in spoe-message section
    - BUG/MINOR: spoe: Fix soft stop handler using a specific id for spoe filters
    - MINOR: config: warn when some HTTP rules are used in a TCP proxy
    - MINOR: http: don't close when redirect location doesn't start with "/"
    - BUG/MEDIUM: config: reject anything but "if" or "unless" after a use-backend rule
    - MEDIUM: ssl: add new sample-fetch which captures the cipherlist
    - BUG/MAJOR: lua segmentation fault when the request is like 'GET ?arg=val HTTP/1.1'
    - MINOR: server: extend the flags to 32 bits
    - MINOR: doc: Add docs for agent-addr and agent-send CLI commands
    - MINOR: doc: Add docs for agent-addr configuration variable
    - MINOR: cli: Add possiblity to change agent config via CLI/socket
    - MINOR: checks: Add agent-addr config directive
    - BUG/MINOR: sendmail: The return of vsnprintf is not cleanly tested
    - BUG/MINOR: http: Return an error when a replace-header rule failed on the response
    - BUG/MEDIUM: http: Prevent replace-header from overwriting a buffer
    - BUG/MEDIUM: filters: Do not truncate HTTP response when body length is undefined
    - BUG/MEDIUM: http: prevent redirect from overwriting a buffer
    - MINOR: chunks: implement a simple dynamic allocator for trash buffers
    - BUG/MAJOR: dns: restart sockets after fork()
    - MINOR: dns: give ability to dns_init_resolvers() to close a socket when requested
    - BUG/MINOR: lua: Map.end are not reliable because "end" is a reserved keyword
    - DOC: lua: improve links
    - BUG/MINOR: unix: fix connect's polling in case no data are scheduled
    - BUG/MEDIUM: tcp: don't poll for write when connect() succeeds
    - BUILD: ssl: eliminate warning with OpenSSL 1.1.0 regarding RAND_pseudo_bytes()
    - BUILD: ssl: silence a warning reported for ERR_remove_state()
    - BUILD: ssl: fix build on OpenSSL 1.0.0
    - MINOR: modules: report more precise errors about module API mismatch
    - MINOR: modules: Remove Gcc warnings about unused variables
    - BUILD: modules: Remove modules-config.h from DEP variable to generate .i file
    - BUILD: modules: Add macors to compute numerical value of a HAPEE version
    - BUILD: modules: Only define the all target if MODULES isn't defined.
    - MINOR: Use "500 Internal Server Error" for 500 error/status code message.
    - MINOR: samples: add xx-hash functions
    - DOC: lua: Add documentation about variable manipulation from applet
    - MINOR: lua: give HAProxy variable access to the applets
    - MINOR: lua: Allow argument for actions
    - OPTIM/MINOR: config: Optimize fullconn automatic computation loading configuration
    - OPTIM: stream-int: don't disable polling anymore on DONT_READ
    - CLEANUP: memory: remove the now unused cli_parse_show_pools() function
    - MINOR: cli: automatically enable a CLI I/O handler when there's no parser
    - DOC: cli: show cli sockets
    - BUG/MINOR: cli: "show cli sockets" would always report process 64
    - BUG/MINOR: cli: "show cli sockets" wouldn't list all processes
    - MEDIUM: cli: 'show cli sockets' list the CLI sockets
    - MINOR: tcp-rules: check that the listener exists before updating its counters
    - MINOR: cfgparse: add two new functions to check arguments count
    - MINOR: haproxy: add a registration for post-deinit functions
    - MINOR: haproxy: add a registration for post-check functions
    - MINOR: haproxy: add a registration for build options
    - CLEANUP: haproxy: statify unexported functions
    - BUG/MINOR: stream: Fix how backend-specific analyzers are set on a stream
    - MEDIUM: modules: 'modules list' on the cli shows currently loaded modules
    - BUILD: modules: strip the MODULE_COPTS before hashing them
    - BUILD: modules: add make module-copts to show module options
    - BUILD: modules: take pkg-config out of install-inc
    - MINOR: modules: fix incorrect API HASH generation with certain awk versions
    - MODULES: BUILD: modules: Add version of the module in the defines
    - BUILD: modules: use gawk insteads of awk
    - BUILD: modules: make modules support optional
    - MINOR: modules: Don't use constructor/destructor anymore...
    - MINOR: modules: Terminate properly loaded modules if possible
    - MINOR: modules: Keep a list of loaded modules to unload them when HAProxy is stopped
    - MINOR: modules: Register function called after the main config check
    - MEDIUM: modules: modules: Add memory reservation support for the modules
    - MEDIUM: modules: modules: Add modules support
    - BUG/MINOR: Reset errno variable before calling strtol(3)
    - DOC: add deprecation notice to "block"
    - MINOR: proto_http.c 502 error txt typo.
    - BUG/MINOR: ssl: EVP_PKEY must be freed after X509_get_pubkey usage
    - BUG/MEDIUM: tools: do not force an unresolved address to AF_INET:0.0.0.0
    - MEDIUM: server: disable protocol validations when the server doesn't resolve
    - MINOR: server: take the destination port from the port field, not the addr
    - MINOR: tools: make str2sa_range() return the port in a separate argument
    - MEDIUM: server: split the address and the port into two different fields
    - BUG/MEDIUM: server: consider AF_UNSPEC as a valid address family
    - BUG/MINOR: tools: fix off-by-one in port size check
    - BUG/MINOR: config: emit a warning if http-reuse is enabled with incompatible options
    - MINOR: connection: add sample fetch "fc_rcvd_proxy"
    - MINOR: http: custom status reason.
    - BUG/MAJOR: http: fix risk of getting invalid reports of bad requests
    - BUILD: scripts: automatically update the branch in version.h when releasing
    - BUG/MINOR: http: report real parser state in error captures
    - BUG/MAJOR: channel: Fix the definition order of channel analyzers
    - BUG/MINOR: sample-fetches/stick-tables: bad type for the sample fetches sc*_get_gpt0
    - MINOR: stats: Support "select all" for backend actions
    - BUG/MINOR: option prefer-last-server must be ignored in some case
    - BUILD: lua: build failed on FreeBSD.
    - DOC: Add timings events schemas
    - BUG/MINOR: systemd: potential zombie processes
    - BUG/MEDIUM: ssl: for a handshake when server-side SNI changes
    - BUG/MINOR: backend: nbsrv() should return 0 if backend is disabled
    - BUG/MINOR: stats: fix be/sessions/current out in typed stats
    - BUG/MEDIUM: ssl: avoid double free when releasing bind_confs
    - BUG/MEDIUM: ssl: properly reset the reused_sess during a forced handshake
    - BUG/MINOR: lua: bad return code
    - BUG/MINOR: lua: memory leak executing tasks
    - BUG/MINOR: Fix the sending function in Lua's cosocket
    - DOC: fix small typo in fe_id (backend instead of frontend)
    - BUG/MINOR: lua/cli: bad error message
    - DOC: lua: section declared twice
    - DOC: lua: documentation about time parser functions
    - BUG/MINOR: stream-int: automatically release SI_FL_WAIT_DATA on SHUTW_NOW
    - SCRIPTS: git-show-backports: add -H to use the hash of the commit message
    - SCRIPTS: git-show-backports: fix a harmless typo
    - BUG/MEDIUM: lua: In some case, the return of sample-fetches is ignored (2)
    - BUILD/MEDIUM: Fixing the build using LibreSSL
    - BUG/MAJOR: Fix how the list of entities waiting for a buffer is handled
    - BUG/MEDIUM: stream: Save unprocessed events for a stream
    - MINOR: task: Rename run_queue and run_queue_cur counters
    - MINOR: applet: Count number of (active) applets
    - BUG/MINOR: cli: be sure to always warn the cli applet when input buffer is full
    - DOC: Fix some typo in SPOE documentation
    - DOC: Add undocumented argument of the trace filter
    - MINOR: Do not forward the header "Expect: 100-continue" when the option http-buffer-request is set
    - DOC: lua: Documentation about some entry missing
    - MINOR: proxy: Add fe_name/be_name fetchers next to existing fe_id/be_id
    - BUG/MINOR: stats: fix be/sessions/max output in html stats
    - BUG/MEDIUM: variables: some variable name can hide another ones
    - DOC: mention that req_tot is for both frontends and backends
    - BUG/MINOR: http: don't send an extra CRLF after a Set-Cookie in a redirect
    - DOC: Added 51Degrees conv and fetch functions to documentation.
    - DOC: Fix map table's format
    - BUG/MEDIUM: cli: fix "show stat resolvers" and "show tls-keys"
    - BUG/MINOR: cli: allow the backslash to be escaped on the CLI
    - BUG/MAJOR: stream: fix session abort on resource shortage
    - BUG/MINOR: http: Call XFER_DATA analyzer when HTTP txn is switched in tunnel mode
    - BUG/MINOR: filters: Invert evaluation order of HTTP_XFER_BODY and XFER_DATA analyzers
    - BUG/MINOR: filters: Protect args in macros HAS_DATA_FILTERS and IS_DATA_FILTER
    - BUG/MINOR: http: Keep the same behavior between 1.6 and 1.7 for tunneled txn
    - BUG/MEDIUM: http: Fix tunnel mode when the CONNECT method is used
    - DOC: Spelling fixes
    - BUG/MINOR: stats: make field_str() return an empty string on NULL
    - BUG/MEDIUM: proxy: return "none" and "unknown" for unknown LB algos
    - BUILD: fix the reported version number


HAPEE-LB 1.7r1 – Changelog