nuttx

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T

fangxinyong 903e87a7bd builtin: support uid/gid config for binfs app

Implement I_SUID/I_SGID feature for binfs in the POSIX compliant way.
If set-user-ID bit is set in the file permissions, then the effective
user ID of process shall be set to UID of the new process image file.

test case:
hello example emulates to set uid and file set-user-ID bit, and call
geteuid and getegid API.
UID  = 2000
GID  = 3000
MODE = 06555

nsh> ls -l /bin/hello
 -r-sr-sr-x    2000    3000       0 hello
nsh> hello
geteuid:2000
getegid:3000

Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>

2023-08-14 01:37:00 +08:00

CMakeLists.txt

build: add initial cmake build system

2023-07-08 13:50:48 +08:00

fs_binfs.c

builtin: support uid/gid config for binfs app

2023-08-14 01:37:00 +08:00

Kconfig

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Make.defs

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README.txt

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README.txt

fs/binfs README
================

  This is the binfs file system that allows "fake" execution of NSH built-
  in applications via the file system.  The binfs fs file system can be
  built into the system by enabling:

    CONFIG_BUILTIN=y
    CONFIG_FS_BINFS=y

  It can then be mounted from the NSH command like like:

   mount -t binfs /bin

Example
=======

  NuttShell (NSH) NuttX-6.31
  nsh> hello
  nsh: hello: command not found

  nsh> mount -t binfs /bin
  nsh> ls /bin
  ls /bin
  /bin:
   hello

  nsh> /bin/hello
  Hello, World!!