diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/usernetctl.1 | 17 | ||||
| -rw-r--r-- | src/usernetctl.c | 15 |
2 files changed, 24 insertions, 8 deletions
diff --git a/src/usernetctl.1 b/src/usernetctl.1 index 27287b68..ff3ca593 100644 --- a/src/usernetctl.1 +++ b/src/usernetctl.1 @@ -3,19 +3,26 @@ usernetctl \- allow a user to manipulate a network interface if permitted .SH SYNOPSIS .B usernetctl -\fIconfig-file-name\fP up\fI|\fPdown +\fIinterface-name\fP up\fI|\fPdown\fI|\fPreport .SH DESCRIPTION .B usernetctl checks to see if users are allowed to manipulate the network interface -specified by \fIconfig-file-name\fP, and then tries to bring the network -interface up or down, as specified. +specified by \fIinterface-name\fP, and then tries to bring the network +interface up or down, if up or down was specified on the command line, +or returns true or false status (respectively) if the report option was +specified. .SH OPTIONS .TP -.I "\fIconfig-file-name" -The name of the network configuration file to read; for example, ifcfg-ppp0 +.I "\fIinterface-name" +The name of the network interface to check; for example, "ppp0". For +backwards compatibility, "ifcfg-ppp0" and +"/etc/sysconfig/network-scripts/ifcfg-ppp0" are also supported. .TP up\fI|\fPdown Attempt to bring the interface up or down. +.TP +report +Report on whether users can bring the interface up or down. .SH NOTES Alternate device configurations may inherit the default configuration's permissions. diff --git a/src/usernetctl.c b/src/usernetctl.c index f642f332..ece0544b 100644 --- a/src/usernetctl.c +++ b/src/usernetctl.c @@ -11,7 +11,7 @@ /* this will be running setuid root, so be careful! */ void usage(void) { - fprintf(stderr, "usage: usernetctl <interface-config> <up|down>\n"); + fprintf(stderr, "usage: usernetctl <interface-config> <up|down|report>\n"); exit(1); } @@ -106,6 +106,7 @@ int main(int argc, char ** argv) { char * ifaceConfig; char * chptr; char * cmd; + int report = 0; if (argc != 3) usage(); @@ -113,6 +114,8 @@ int main(int argc, char ** argv) { cmd = "./ifup"; } else if (!strcmp(argv[2], "down")) { cmd = "./ifdown"; + } else if (!strcmp(argv[2], "report")) { + report = 1; } else { usage(); } @@ -157,12 +160,18 @@ int main(int argc, char ** argv) { } /* else fall through */ case FOUND_FALSE: - fprintf(stderr, "Users are not allowed to control this interface.\n"); + if (! report) + fprintf(stderr, + "Users are not allowed to control this interface.\n"); exit(1); break; } - /* looks good to me -- let's go for it */ + /* looks good to me -- let's go for it if we are changing the interface, + * report good status to the user otherwise */ + + if (report) + exit(0); /* pppd wants the real uid to be the same as the effective (god only knows why when it works fine setuid out of the box) */ |