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cleanup and some documentation
Ticket: CM-1438 Reviewed By: Testing Done:
This commit is contained in:
roopa
2
TODO
2
TODO
@ -1,5 +1,7 @@
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TODO:
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====
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- support old ifupdown state file /run/network/ifstate. B
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- support -i interfaces file
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- support for debian ifupdown methods: tunnel, v4tunnel, 6to4, ppp, wvdial, ipv4ll
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- support for debian ifupdown ipv6 auto method
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- support for debian ifupdown CAN address family
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@ -1 +0,0 @@
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.so ifup.8
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@ -1 +0,0 @@
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.so ifup.8
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232
man/ifup.8
232
man/ifup.8
@ -1,232 +0,0 @@
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.TH ifup 8 "22 May 2004" IFUPDOWN ""
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.SH NAME
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ifup \- bring a network interface up
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.PP
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ifdown \- take a network interface down
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.PP
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ifquery \- parse interface configuration
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.SH SYNOPSIS
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.B ifup
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[\fB\-nv\fR]
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[\fB\-\-no\-act\fR]
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[\fB\-\-verbose\fR]
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[\fB\-i\fR \fIFILE\fR|\fB\-\-interfaces=\fR\fIFILE\fR]
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[\fB\-\-allow\fR \fICLASS\fR]
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\fB\-a\fR|\fIIFACE\fR...
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.br
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.B ifup
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\fB\-h\fR|\fB\-\-help\fR
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.br
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.B ifup
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\fB\-V\fR|\fB\-\-version\fR
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.PP
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.B ifdown
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[\fB\-nv\fR]
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[\fB\-\-no\-act\fR]
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[\fB\-\-verbose\fR]
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[\fB\-i\fR \fIFILE\fR|\fB\-\-interfaces=\fR\fIFILE\fR]
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[\fB\-\-allow\fR \fICLASS\fR]
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\fB\-a\fR|\fIIFACE\fR...
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.PP
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.B ifquery
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[\fB\-nv\fR]
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[\fB\-\-no\-act\fR]
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[\fB\-\-verbose\fR]
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[\fB\-i\fR \fIFILE\fR|\fB\-\-interfaces=\fR\fIFILE\fR]
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[\fB\-\-allow\fR \fICLASS\fR]
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\fB\-a\fR|\fIIFACE\fR...
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.PP
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.B ifquery
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\fB\-l\fR|\fB\-\-list\fR
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[\fB\-nv\fR]
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[\fB\-\-no\-act\fR]
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[\fB\-\-verbose\fR]
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[\fB\-i\fR \fIFILE\fR|\fB\-\-interfaces=\fR\fIFILE\fR]
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[\fB\-\-allow\fR \fICLASS\fR]
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\fB\-a\fR|\fIIFACE\fR...
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.SH DESCRIPTION
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The
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.BR ifup " and " ifdown
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commands may be used to configure (or, respectively, deconfigure) network
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interfaces based on interface definitions in the file
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.IR /etc/network/interfaces ". "
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.BR ifquery " command may be used to parse interfaces configuration."
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.SH OPTIONS
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A summary of options is included below.
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.TP
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.BR \-a ", " \-\-all
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If given to \fBifup\fP, affect all interfaces marked \fBauto\fP.
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Interfaces are brought up in the order in which they are defined
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in
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.IR /etc/network/interfaces .
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Combined with \fB-\-allow\fP, acts on all interfaces of a specified class
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instead.
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If given to \fBifdown\fP, affect all defined interfaces.
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Interfaces are brought down in the order in which they are
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currently listed in the state file. Only interfaces defined
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in
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.I /etc/network/interfaces
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will be brought down.
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.TP
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.B \-\-force
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Force configuration or deconfiguration of the interface.
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.TP
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.BR \-h ", " \-\-help
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Show summary of options.
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.TP
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\fB\-\-allow=\fR\fICLASS\fR
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Only allow interfaces listed in an
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.I allow\-CLASS
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line in
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.IR /etc/network/interfaces " to be acted upon."
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.TP
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\fB\-i\fR \fIFILE\fR, \fB\-\-interfaces=\fR\fIFILE\fR
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Read interface definitions from
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.I FILE
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instead of from
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.IR /etc/network/interfaces "."
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.TP
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.BI \-X " PATTERN\fR, " "\-\-exclude=" PATTERN
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Exclude interfaces from the list of interfaces to operate on by the \fIPATTERN\fR.
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\fIPATTERN\fR uses a usual shell glob syntax. If shell wildcards are not used, it
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must match the exact interface name. This option may be specified multiple times
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resulting in more than one pattern being excluded.
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.TP
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.BI \-o " OPTION" "\fB=" VALUE
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Set \fIOPTION\fR to \fIVALUE\fR as though it were in
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.IR /etc/network/interfaces .
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.TP
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.BR \-n ", " \-\-no\-act
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Don't configure any interfaces or run any "up" or "down" commands.
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.TP
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.B \-\-no\-mappings
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Don't run any mappings. See
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.BR interfaces (5)
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for more information about the mapping feature.
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.TP
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.B \-\-no\-scripts
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Don't run any scripts under /etc/network/if-*.d/
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.TP
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.BR \-V ", " \-\-version
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Show copyright and version information.
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.TP
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.BR \-v ", " \-\-verbose
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Show commands as they are executed.
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.TP
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.BR \-l ", " \-\-list
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For \fBifquery\fR, list all the interfaces which match the specified class.
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If no class specified, prints all the interfaces listed as \fBauto\fR.
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.SH EXAMPLES
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.TP
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.B ifup -a
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Bring up all the interfaces defined with
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.I auto
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in
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.I /etc/network/interfaces
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.TP
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.B ifup eth0
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Bring up interface
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.B eth0
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.TP
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.B ifup eth0=home
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Bring up interface
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.B eth0
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as logical interface
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.B home
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.TP
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.B ifdown -a
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Bring down all interfaces that are currently up.
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.TP
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.B ifquery -l
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Print names of all interfaces specified with the \fBauto\fR keyword.
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.TP
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.B ifquery -l --allow=hotplug
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Print names of all interfaces specified with the \fBallow-hotplug\fR keyword.
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.TP
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.B ifquery eth0
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Display the interface options as specified in the \fBifupdown\fR
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configuration. Each key-value pair is printed out on individual
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line using "\fB: \fR" as separator.
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.SH NOTES
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.BR ifup ,
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.BR ifdown ,
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and
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.BR ifquery
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are actually the same program called by different names.
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.P
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The program does not configure network interfaces directly;
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it runs low level utilities such as
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.BR ip
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to do its dirty work.
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.P
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When invoked,
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.B ifdown
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checks if
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.B ifup
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is still running. In that case,
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.B SIGTERM
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is sent to ifup.
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.SH FILES
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.TP
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.I /etc/network/interfaces
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definitions of network interfaces
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See
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.BR interfaces (5)
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for more information.
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.TP
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.I /run/network/ifstate
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current state of network interfaces
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.SH KNOWN BUGS/LIMITATIONS
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The program keeps records of whether network interfaces are up or down.
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Under exceptional circumstances these records can become
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inconsistent with the real states of the interfaces.
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For example, an interface that was brought up using
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.B ifup
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and later deconfigured using
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.B ifconfig
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will still be recorded as up.
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To fix this you can use the
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.B \-\-force
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option to force
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.B ifup
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or
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.B ifdown
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to run configuration or deconfiguration commands despite what
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it considers the current state of the interface to be.
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.P
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The file
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.I /run/network/ifstate
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must be writable for
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.B ifup
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or
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.B ifdown
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to work properly.
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If that location is not writable
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(for example, because the root filesystem is mounted read-only
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for system recovery)
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then
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.I /run/network/ifstate
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should be made a symbolic link to a writable location.
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If that is not possible then you can use the
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.B \-\-force
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option to run configuration or deconfiguration commands
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without updating the file.
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.P
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Note that the program does not run automatically:
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.B ifup
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alone does not bring up interfaces
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that appear as a result of hardware being installed and
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.B ifdown
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alone does not bring down interfaces
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that disappear as a result of hardware being removed.
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To automate the configuration of network interfaces you need to
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install other packages such as
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.BR udev (7)
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or
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.BR ifplugd (8).
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.SH AUTHOR
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The ifupdown suite was written by Anthony Towns <aj@azure.humbug.org.au>.
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.SH SEE ALSO
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.BR interfaces (5),
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.BR ip (8),
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.BR ifconfig (8).
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@ -139,7 +139,6 @@ class ifupdownMain():
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return self.ifaceobjdict
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def set_ifaceobjdict(self, ifaceobjdict):
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del self.ifaceobjdict
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self.ifaceobjdict = ifaceobjdict
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def set_dependency_graph(self, dependency_graph):
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@ -511,7 +510,8 @@ class ifupdownMain():
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self.operations_compat[op].append(
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msubdir + '/' + module)
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except:
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raise
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# continue reading
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pass
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def conv_iface_namelist_to_objlist(self, intf_list):
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for intf in intf_list:
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@ -912,14 +912,8 @@ class ifupdownMain():
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%str(ifacedownlist))
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# Generate dependency info for old config
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self.populate_dependency_info(ifacedownlist, downops)
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if len(ifacedownlist) == len(self.ifaceobjdict):
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# if you are downing all interfaces, its better run
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# with dependents
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self.run_with_dependents(downops, ifacedownlist)
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else:
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# if not, down only the interfaces that we have in the
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# down list
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self.run_without_dependents(downops, ifacedownlist)
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self.run_with_dependents(downops, ifacedownlist)
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# Update persistant iface states
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try:
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if self.ALL:
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223
sbin/ifupdown
223
sbin/ifupdown
@ -11,7 +11,7 @@ import logging
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lockfile="/run/network/.lock"
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logger = None
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def run(args, op):
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def run_up(args):
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logger.debug('args = %s' %str(args))
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try:
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@ -19,62 +19,100 @@ def run(args, op):
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if len(args.iflist) == 0:
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iflist = None
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logger.debug('creating ifupdown object ..')
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if op == 'up' or op == 'down' or op == 'reload':
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cachearg=(False if (iflist or args.nocache or
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cachearg=(False if (iflist or args.nocache or
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args.perfmode or args.noact)
|
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else True)
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ifupdown_handle = ifupdownMain(force=args.force,
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withdepends=args.withdepends,
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perfmode=args.perfmode,
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njobs=args.jobs,
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dryrun=args.noact,
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cache=cachearg)
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elif op == 'query':
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cachearg=(False if (iflist or args.nocache or
|
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args.perfmode or args.syntaxhelp) else True)
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ifupdown_handle = ifupdownMain(withdepends=args.withdepends,
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perfmode=args.perfmode,
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njobs=args.jobs,
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cache=cachearg)
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ifupdown_handle = ifupdownMain(force=args.force,
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withdepends=args.withdepends,
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perfmode=args.perfmode,
|
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njobs=args.jobs,
|
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dryrun=args.noact,
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cache=cachearg)
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|
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logger.debug('calling \'%s\'' %op + ' for all interfaces ..')
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if op == 'up':
|
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ifupdown_handle.up(['pre-up', 'up', 'post-up'],
|
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ifupdown_handle.up(['pre-up', 'up', 'post-up'],
|
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args.all, args.CLASS, iflist,
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excludepats=args.excludepats,
|
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printdependency=args.printdependency)
|
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elif op == 'down':
|
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ifupdown_handle.down(['pre-down', 'down', 'post-down'],
|
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args.all, args.CLASS, iflist,
|
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excludepats=args.excludepats,
|
||||
printdependency=args.printdependency)
|
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elif op == 'query':
|
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if args.checkcurr:
|
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qop='query-checkcurr'
|
||||
elif args.running:
|
||||
if iflist is None:
|
||||
iflist = [i for i in os.listdir('/sys/class/net/')
|
||||
if os.path.isdir('/sys/class/net/%s' %i)]
|
||||
qop='query-running'
|
||||
elif args.raw:
|
||||
qop='query-raw'
|
||||
elif args.syntaxhelp:
|
||||
qop = 'query-syntax'
|
||||
elif args.printdependency:
|
||||
qop = 'query-dependency'
|
||||
else:
|
||||
qop='query'
|
||||
except:
|
||||
raise
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||||
|
||||
ifupdown_handle.query([qop], args.all, args.CLASS, iflist,
|
||||
excludepats=args.excludepats,
|
||||
printdependency=args.printdependency,
|
||||
format=args.format)
|
||||
elif op == 'reload':
|
||||
if iflist is not None:
|
||||
raise Exception('iflist is currently not supported with reload')
|
||||
ifupdown_handle.reload(args.all, args.CLASS, iflist,
|
||||
excludepats=args.excludepats,
|
||||
downchangediface=args.downchangediface)
|
||||
def run_down(args):
|
||||
logger.debug('args = %s' %str(args))
|
||||
|
||||
try:
|
||||
iflist = args.iflist
|
||||
if len(args.iflist) == 0:
|
||||
iflist = None
|
||||
logger.debug('creating ifupdown object ..')
|
||||
cachearg=(False if (iflist or args.nocache or
|
||||
args.perfmode or args.noact)
|
||||
else True)
|
||||
ifupdown_handle = ifupdownMain(force=args.force,
|
||||
withdepends=args.withdepends,
|
||||
perfmode=args.perfmode,
|
||||
njobs=args.jobs,
|
||||
dryrun=args.noact,
|
||||
cache=cachearg)
|
||||
|
||||
ifupdown_handle.down(['pre-down', 'down', 'post-down'],
|
||||
args.all, args.CLASS, iflist,
|
||||
excludepats=args.excludepats,
|
||||
printdependency=args.printdependency)
|
||||
except:
|
||||
raise
|
||||
|
||||
def run_query(args):
|
||||
logger.debug('args = %s' %str(args))
|
||||
|
||||
try:
|
||||
iflist = args.iflist
|
||||
if len(args.iflist) == 0:
|
||||
iflist = None
|
||||
logger.debug('creating ifupdown object ..')
|
||||
cachearg=(False if (iflist or args.nocache or
|
||||
args.perfmode or args.syntaxhelp) else True)
|
||||
ifupdown_handle = ifupdownMain(withdepends=args.withdepends,
|
||||
perfmode=args.perfmode,
|
||||
njobs=args.jobs,
|
||||
cache=cachearg)
|
||||
if args.checkcurr:
|
||||
qop='query-checkcurr'
|
||||
elif args.running:
|
||||
if iflist is None:
|
||||
iflist = [i for i in os.listdir('/sys/class/net/')
|
||||
if os.path.isdir('/sys/class/net/%s' %i)]
|
||||
qop='query-running'
|
||||
elif args.raw:
|
||||
qop='query-raw'
|
||||
elif args.syntaxhelp:
|
||||
qop = 'query-syntax'
|
||||
elif args.printdependency:
|
||||
qop = 'query-dependency'
|
||||
else:
|
||||
qop='query'
|
||||
|
||||
ifupdown_handle.query([qop], args.all, args.CLASS, iflist,
|
||||
excludepats=args.excludepats,
|
||||
printdependency=args.printdependency,
|
||||
format=args.format)
|
||||
except:
|
||||
raise
|
||||
|
||||
|
||||
def run_reload(args):
|
||||
logger.debug('args = %s' %str(args))
|
||||
|
||||
try:
|
||||
logger.debug('creating ifupdown object ..')
|
||||
cachearg=(False if (args.nocache or
|
||||
args.perfmode or args.noact) else True)
|
||||
ifupdown_handle = ifupdownMain(withdepends=args.withdepends,
|
||||
perfmode=args.perfmode,
|
||||
njobs=args.jobs,
|
||||
cache=cachearg)
|
||||
ifupdown_handle.reload(args.all, None, None,
|
||||
excludepats=args.excludepats,
|
||||
downchangediface=args.downchangediface)
|
||||
except:
|
||||
raise
|
||||
|
||||
@ -106,8 +144,8 @@ def update_argparser(argparser):
|
||||
argparser.add_argument('-a', '--all', action='store_true', required=False,
|
||||
help='process all interfaces marked \"auto\"')
|
||||
argparser.add_argument('iflist', metavar='IFACE',
|
||||
nargs='*', help='interface list separated by spaces')
|
||||
|
||||
nargs='*', help='interface list separated by spaces. ' +
|
||||
'IFACE list is mutually exclusive with -a option.')
|
||||
argparser.add_argument('-v', '--verbose', dest='verbose',
|
||||
action='store_true', help='verbose')
|
||||
argparser.add_argument('-d', '--debug', dest='debug',
|
||||
@ -119,7 +157,9 @@ def update_argparser(argparser):
|
||||
argparser.add_argument('--allow', dest='CLASS',
|
||||
help='ignore non-\"allow-CLASS\" interfaces')
|
||||
argparser.add_argument('--with-depends', dest='withdepends',
|
||||
action='store_true', help='run with all dependent interfaces')
|
||||
action='store_true', help='run with all dependent interfaces.'+
|
||||
' This option is redundant when \'-a\' is specified. With ' +
|
||||
'\'-a\' interfaces are always executed in dependency order')
|
||||
argparser.add_argument('--perfmode', dest='perfmode',
|
||||
action='store_true', help=argparse.SUPPRESS)
|
||||
argparser.add_argument('-j', '--jobs', dest='jobs', type=int,
|
||||
@ -129,7 +169,7 @@ def update_argparser(argparser):
|
||||
argparser.add_argument('-X', '--exclude', dest='excludepats',
|
||||
action='append',
|
||||
help='Exclude interfaces from the list of interfaces' +
|
||||
' to operate on')
|
||||
' to operate on. Can be specified multiple times.')
|
||||
|
||||
def update_ifupdown_argparser(argparser):
|
||||
""" common arg parser for ifup and ifdown """
|
||||
@ -175,10 +215,33 @@ def update_ifquery_argparser(argparser):
|
||||
help='print supported interface config syntax')
|
||||
|
||||
def update_ifreload_argparser(argparser):
|
||||
update_ifupdown_argparser(argparser)
|
||||
argparser.add_argument('--down-changediface', dest='downchangediface',
|
||||
""" parser for ifreload """
|
||||
argparser.add_argument('-a', '--all', action='store_true', required=True,
|
||||
help='process all interfaces marked \"auto\"')
|
||||
argparser.add_argument('iflist', metavar='IFACE',
|
||||
nargs='*', help=argparse.SUPPRESS)
|
||||
argparser.add_argument('-n', '--no-act', dest='noact',
|
||||
action='store_true', help=argparse.SUPPRESS)
|
||||
argparser.add_argument('-v', '--verbose', dest='verbose',
|
||||
action='store_true', help='verbose')
|
||||
argparser.add_argument('-d', '--debug', dest='debug',
|
||||
action='store_true',
|
||||
help='down interfaces that have changed before bringing them up')
|
||||
help='output debug info')
|
||||
argparser.add_argument('--with-depends', dest='withdepends',
|
||||
action='store_true', help=argparse.SUPPRESS)
|
||||
argparser.add_argument('--perfmode', dest='perfmode',
|
||||
action='store_true', help=argparse.SUPPRESS)
|
||||
argparser.add_argument('--nocache', dest='nocache', action='store_true',
|
||||
help=argparse.SUPPRESS)
|
||||
argparser.add_argument('-X', '--exclude', dest='excludepats',
|
||||
action='append',
|
||||
help=argparse.SUPPRESS)
|
||||
argparser.add_argument('-j', '--jobs', dest='jobs', type=int,
|
||||
default=-1, choices=range(1,12), help=argparse.SUPPRESS)
|
||||
argparser.add_argument('--down-changediface', dest='downchangediface',
|
||||
action='store_true', help='down interfaces whose ' +
|
||||
'config have changed before bringing them up. By' +
|
||||
' default all interfaces are brought up')
|
||||
|
||||
def parse_args(argsv, op):
|
||||
if op == 'query':
|
||||
@ -186,19 +249,30 @@ def parse_args(argsv, op):
|
||||
else:
|
||||
descr = 'interface management'
|
||||
argparser = argparse.ArgumentParser(description=descr)
|
||||
update_argparser(argparser)
|
||||
if op == 'up':
|
||||
update_ifup_argparser(argparser)
|
||||
elif op == 'down':
|
||||
update_ifdown_argparser(argparser)
|
||||
elif op == 'query':
|
||||
update_ifquery_argparser(argparser)
|
||||
elif op == 'reload':
|
||||
if op == 'reload':
|
||||
update_ifreload_argparser(argparser)
|
||||
else:
|
||||
update_argparser(argparser)
|
||||
if op == 'up':
|
||||
update_ifup_argparser(argparser)
|
||||
elif op == 'down':
|
||||
update_ifdown_argparser(argparser)
|
||||
elif op == 'query':
|
||||
update_ifquery_argparser(argparser)
|
||||
elif op == 'reload':
|
||||
update_ifreload_argparser(argparser)
|
||||
|
||||
return argparser.parse_args(argsv)
|
||||
|
||||
handlers = {'up' : run_up,
|
||||
'down' : run_down,
|
||||
'query' : run_query,
|
||||
'reload' : run_reload }
|
||||
|
||||
def main(argv):
|
||||
""" main function """
|
||||
args = None
|
||||
|
||||
try:
|
||||
op = None
|
||||
if re.search(r'ifup', argv[0]) != None:
|
||||
@ -215,22 +289,27 @@ def main(argv):
|
||||
exit(1)
|
||||
# Command line arg parser
|
||||
args = parse_args(argv[1:], op)
|
||||
if not len(args.iflist) and not args.all and not args.syntaxhelp:
|
||||
print '\'-a\' option or interface list are required'
|
||||
exit(1)
|
||||
if not len(args.iflist) and not args.all:
|
||||
if op != 'query' or not args.syntaxhelp:
|
||||
print '\'-a\' option or interface list are required'
|
||||
exit(1)
|
||||
|
||||
if len(args.iflist) and args.all:
|
||||
print '\'-a\' option and interface list are mutually exclusive'
|
||||
exit(1)
|
||||
init(args)
|
||||
run(args, op)
|
||||
handlers.get(op)(args)
|
||||
except Exception, e:
|
||||
if str(e) == '':
|
||||
exit(1)
|
||||
if args.debug:
|
||||
if args and args.debug:
|
||||
raise
|
||||
else:
|
||||
logger.error(str(e))
|
||||
if not args.debug:
|
||||
if logger:
|
||||
logger.error(str(e))
|
||||
else:
|
||||
print str(e)
|
||||
if args and not args.debug:
|
||||
print '\nRerun the command with \'-d\' for a detailed errormsg'
|
||||
exit(1)
|
||||
finally:
|
||||
|
||||
Reference in New Issue
Block a user