diff options
Diffstat (limited to 'netcfg')
| -rw-r--r-- | netcfg/Android.mk | 16 | ||||
| -rw-r--r-- | netcfg/MODULE_LICENSE_APACHE2 | 0 | ||||
| -rw-r--r-- | netcfg/NOTICE | 190 | ||||
| -rw-r--r-- | netcfg/netcfg.c | 175 |
4 files changed, 381 insertions, 0 deletions
diff --git a/netcfg/Android.mk b/netcfg/Android.mk new file mode 100644 index 0000000..949f417 --- /dev/null +++ b/netcfg/Android.mk @@ -0,0 +1,16 @@ +ifneq ($(BUILD_TINY_ANDROID),true) +LOCAL_PATH:= $(call my-dir) + +include $(CLEAR_VARS) +LOCAL_SRC_FILES:= netcfg.c +LOCAL_MODULE:= netcfg + +#LOCAL_FORCE_STATIC_EXECUTABLE := true +#LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT_SBIN) +#LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_SBIN_UNSTRIPPED) +#LOCAL_STATIC_LIBRARIES := libcutils libc + +LOCAL_SHARED_LIBRARIES := libc libnetutils + +include $(BUILD_EXECUTABLE) +endif diff --git a/netcfg/MODULE_LICENSE_APACHE2 b/netcfg/MODULE_LICENSE_APACHE2 new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/netcfg/MODULE_LICENSE_APACHE2 diff --git a/netcfg/NOTICE b/netcfg/NOTICE new file mode 100644 index 0000000..c5b1efa --- /dev/null +++ b/netcfg/NOTICE @@ -0,0 +1,190 @@ + + Copyright (c) 2005-2008, The Android Open Source Project + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + diff --git a/netcfg/netcfg.c b/netcfg/netcfg.c new file mode 100644 index 0000000..fc9cf48 --- /dev/null +++ b/netcfg/netcfg.c @@ -0,0 +1,175 @@ +/* system/bin/netcfg/netcfg.c +** +** Copyright 2006, The Android Open Source Project +** +** Licensed under the Apache License, Version 2.0 (the "License"); +** you may not use this file except in compliance with the License. +** You may obtain a copy of the License at +** +** http://www.apache.org/licenses/LICENSE-2.0 +** +** Unless required by applicable law or agreed to in writing, software +** distributed under the License is distributed on an "AS IS" BASIS, +** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +** See the License for the specific language governing permissions and +** limitations under the License. +*/ + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <dirent.h> + +static int verbose = 0; + +int ifc_init(); +void ifc_close(); +int ifc_up(char *iname); +int ifc_down(char *iname); +int ifc_remove_host_routes(char *iname); +int ifc_remove_default_route(char *iname); +int ifc_get_info(const char *name, unsigned *addr, unsigned *mask, unsigned *flags); +int do_dhcp(char *iname); + +void die(const char *reason) +{ + perror(reason); + exit(1); +} + +const char *ipaddr(unsigned addr) +{ + static char buf[32]; + + sprintf(buf,"%d.%d.%d.%d", + addr & 255, + ((addr >> 8) & 255), + ((addr >> 16) & 255), + (addr >> 24)); + return buf; +} + +void usage(void) +{ + fprintf(stderr,"usage: netcfg [<interface> {dhcp|up|down}]\n"); + exit(1); +} + +int dump_interface(const char *name) +{ + unsigned addr, mask, flags; + + if(ifc_get_info(name, &addr, &mask, &flags)) { + return 0; + } + + printf("%-8s %s ", name, flags & 1 ? "UP " : "DOWN"); + printf("%-16s", ipaddr(addr)); + printf("%-16s", ipaddr(mask)); + printf("0x%08x\n", flags); + return 0; +} + +int dump_interfaces(void) +{ + DIR *d; + struct dirent *de; + + d = opendir("/sys/class/net"); + if(d == 0) return -1; + + while((de = readdir(d))) { + if(de->d_name[0] == '.') continue; + dump_interface(de->d_name); + } + closedir(d); + return 0; +} + +struct +{ + const char *name; + int nargs; + void *func; +} CMDS[] = { + { "dhcp", 1, do_dhcp }, + { "up", 1, ifc_up }, + { "down", 1, ifc_down }, + { "flhosts", 1, ifc_remove_host_routes }, + { "deldefault", 1, ifc_remove_default_route }, + { 0, 0, 0 }, +}; + +static int call_func(void *_func, unsigned nargs, char **args) +{ + switch(nargs){ + case 1: { + int (*func)(char *a0) = _func; + return func(args[0]); + } + case 2: { + int (*func)(char *a0, char *a1) = _func; + return func(args[0], args[1]); + } + case 3: { + int (*func)(char *a0, char *a1, char *a2) = _func; + return func(args[0], args[1], args[2]); + } + default: + return -1; + } +} + +int main(int argc, char **argv) +{ + char *iname; + int n; + + if(ifc_init()) { + die("Cannot perform requested operation"); + } + + if(argc == 1) { + int result = dump_interfaces(); + ifc_close(); + return result; + } + + if(argc < 3) usage(); + + iname = argv[1]; + if(strlen(iname) > 16) usage(); + + argc -= 2; + argv += 2; + while(argc > 0) { + for(n = 0; CMDS[n].name; n++){ + if(!strcmp(argv[0], CMDS[n].name)) { + char *cmdname = argv[0]; + int nargs = CMDS[n].nargs; + + argv[0] = iname; + if(argc < nargs) { + fprintf(stderr, "not enough arguments for '%s'\n", cmdname); + ifc_close(); + exit(1); + } + if(call_func(CMDS[n].func, nargs, argv)) { + fprintf(stderr, "action '%s' failed (%s)\n", cmdname, strerror(errno)); + ifc_close(); + exit(1); + } + argc -= nargs; + argv += nargs; + goto done; + } + } + fprintf(stderr,"no such action '%s'\n", argv[0]); + usage(); + done: + ; + } + ifc_close(); + + return 0; +} |