diff options
Diffstat (limited to 'sys/netinet/libalias/libalias.3')
-rw-r--r-- | sys/netinet/libalias/libalias.3 | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/sys/netinet/libalias/libalias.3 b/sys/netinet/libalias/libalias.3 index 913a96d..8f7d93f 100644 --- a/sys/netinet/libalias/libalias.3 +++ b/sys/netinet/libalias/libalias.3 @@ -1028,7 +1028,9 @@ or as part of the userland library. .Ss LIBALIAS MODULES IN KERNEL LAND When compiled for the kernel, .Nm -modules are plain KLDs recognizable with the "alias_" prefix. +modules are plain KLDs recognizable with the +.Pa alias_ +prefix. .Pp To add support for a new protocol, load the corresponding module. For example: @@ -1045,7 +1047,11 @@ handle module loading/tracking/unloading in userland. .Pp While compiled for a userland .Nm , -all the modules are plain libraries, residing in /usr/lib, and recognizable with the "libalias_" prefix. +all the modules are plain libraries, residing in +.Pa /usr/lib , +and recognizable with the +.Pa libalias_ +prefix. .Pp There is a configuration file, .Pa /etc/libalias.conf , @@ -1065,8 +1071,15 @@ This file contains the paths to the modules that will load. To load/unload a new module, just add its path to .Pa libalias.conf -and call LibAliasRefreshModules from the program. -In case the application provides an HUP signal handler, add a call to LibAliasRefreshModules inside the handler, and everytime you want to refresh the loaded modules, send it the +and call +.Fn LibAliasRefreshModules +from the program. +In case the application provides a +.Dv SIGHUP +signal handler, add a call to +.Fn LibAliasRefreshModules +inside the handler, and everytime you want to refresh the loaded modules, +send it the .Dv SIGHUP signal: .Pp @@ -1080,9 +1093,9 @@ From .Pa alias_mod.c : .Bd -literal /* Protocol and userland module handlers chains. */ -LIST_HEAD(handler_chain, proto_handler) handler_chain \&... +LIST_HEAD(handler_chain, proto_handler) handler_chain ... \&... -SLIST_HEAD(dll_chain, dll) dll_chain \&... +SLIST_HEAD(dll_chain, dll) dll_chain ... .Ed .Pp .Va handler_chain @@ -1096,13 +1109,13 @@ is composed of entries: .Bd -literal struct proto_handler { - u_int pri; - int16_t dir; - uint8_t proto; - int (*fingerprint)(struct libalias *la, + u_int pri; + int16_t dir; + uint8_t proto; + int (*fingerprint)(struct libalias *la, + struct ip *pip, struct alias_data *ah); + int (*protohandler)(struct libalias *la, struct ip *pip, struct alias_data *ah); - int (*protohandler)(struct libalias *la, - struct ip *pip, struct alias_data *ah); LIST_ENTRY(proto_handler) entries; }; .Ed @@ -1355,7 +1368,7 @@ the following simple steps can be followed. Find the main file of an application (let us call it .Pa main.c ) . -.It +.It Add this to the header section of .Pa main.c , if not already present: |