diff --git a/etc/mtree/BSD.usr.dist b/etc/mtree/BSD.usr.dist --- a/etc/mtree/BSD.usr.dist +++ b/etc/mtree/BSD.usr.dist @@ -74,6 +74,10 @@ engines-3 .. flua + freebsd + sys + .. + .. .. i18n .. diff --git a/lib/flua/libfreebsd/Makefile b/lib/flua/libfreebsd/Makefile new file mode 100644 --- /dev/null +++ b/lib/flua/libfreebsd/Makefile @@ -0,0 +1,3 @@ +SUBDIR+= sys + +.include diff --git a/lib/flua/libfreebsd/sys/Makefile b/lib/flua/libfreebsd/sys/Makefile new file mode 100644 --- /dev/null +++ b/lib/flua/libfreebsd/sys/Makefile @@ -0,0 +1,4 @@ +SUBDIR+= linker + +.include + diff --git a/lib/flua/libfreebsd/sys/linker/Makefile b/lib/flua/libfreebsd/sys/linker/Makefile new file mode 100644 --- /dev/null +++ b/lib/flua/libfreebsd/sys/linker/Makefile @@ -0,0 +1,12 @@ +SHLIB_NAME= linker.so +SHLIBDIR= ${LIBDIR}/flua/freebsd/sys + +SRCS+= lua_freebsd_sys_linker.c + +CFLAGS+= \ + -I${SRCTOP}/contrib/lua/src \ + -I${SRCTOP}/lib/liblua \ + +MAN= freebsd.sys.linker.3lua + +.include diff --git a/lib/flua/libfreebsd/sys/linker/freebsd.sys.linker.3lua b/lib/flua/libfreebsd/sys/linker/freebsd.sys.linker.3lua new file mode 100644 --- /dev/null +++ b/lib/flua/libfreebsd/sys/linker/freebsd.sys.linker.3lua @@ -0,0 +1,67 @@ +.\" +.\" SPDX-License-Identifier: BSD-2-Clause +.\" +.\" Copyright (c) 2024, Baptiste Daroussin +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.Dd September 6, 2024 +.Dt FREEBSD.SYS.LINKER 3lua +.Os +.Sh NAME +.Nm freebsd.sys.linker +.Nd Lua binding to +.Fx 's +Linker functions +.Sh SYNOPSIS +.Bd -literal +local linker = require('freebsd.sys.linker') +.Ed +.Pp +.Bl -tag -width XXXX -compact +.It Dv fileid, err, errno = linker.kldload(name) +.It Dv ok, err, errno = linker.kldunload(fileid|name) +.El +.Sh DESCRIPTION +The +.Nm +module is a binding to the +.Fx 's +linker functions. +List of functions: +.Bl -tag -width XXXX +.It Dv fileid, err = freebsd.sys.linker.kldload(name) +Load the kernel module named +.Fa name +and return the identifier +.Pq fileid +as an interger. +.It Dv ok, err, errno = freebsd.sys.linker.kldunload(fileid|name) +Unload the kernel module identifier either by +.Fa name +as a string, or +.Fa fileid +as an integer. +.El +.Sh SEE ALSO +.Xr kldload 2 , +.Xr kldunload 2 diff --git a/lib/flua/libfreebsd/sys/linker/lua_freebsd_sys_linker.c b/lib/flua/libfreebsd/sys/linker/lua_freebsd_sys_linker.c new file mode 100644 --- /dev/null +++ b/lib/flua/libfreebsd/sys/linker/lua_freebsd_sys_linker.c @@ -0,0 +1,104 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2024, Baptiste Daroussin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + +#include +#include + +#include +#include +#include + +#include +#include +#include + +int luaopen_freebsd_sys_linker(lua_State *L); + +static int +lua_kldload(lua_State *L) +{ + const char *name; + int ret; + + name = luaL_checkstring(L, 1); + ret = kldload(name); + if (ret == -1) { + lua_pushnil(L); + lua_pushstring(L, strerror(errno)); + lua_pushinteger(L, errno); + return (3); + } + lua_pushinteger(L, ret); + return (1); +} + +static int +lua_kldunload(lua_State *L) +{ + const char *name; + int ret, fileid; + + if (lua_isinteger(L, 1)) { + fileid = lua_tointeger(L, 1); + } else { + name = luaL_checkstring(L, 1); + fileid = kldfind(name); + } + if (fileid == -1) { + lua_pushnil(L); + lua_pushstring(L, strerror(errno)); + lua_pushinteger(L, errno); + return (3); + } + ret = kldunload(fileid); + lua_pushinteger(L, ret); + if (ret == -1) { + lua_pushnil(L); + lua_pushstring(L, strerror(errno)); + lua_pushinteger(L, errno); + return (3); + } + lua_pushinteger(L, 0); + return (1); +} + +#define REG_SIMPLE(n) { #n, lua_ ## n } +static const struct luaL_Reg freebsd_sys_linker[] = { + REG_SIMPLE(kldload), + REG_SIMPLE(kldunload), + { NULL, NULL }, +}; +#undef REG_SIMPLE + +int +luaopen_freebsd_sys_linker(lua_State *L) +{ + luaL_newlib(L, freebsd_sys_linker); + + return (1); +}