Henri DF
ea158baa8d
Fix error string
2016-03-02 22:24:12 +00:00
Henri DF
33ad92e98b
Fix typo-bug in lua code
2016-03-01 22:01:45 -08:00
Henri DF
f0da1c724b
formats.cpp: print lua error string (like elsewherE)
2016-03-01 22:01:14 -08:00
Henri DF
8343d23c3f
remove debugging print from rules_loader.lua
2016-03-01 20:10:34 -08:00
Henri DF
26fcf3415d
Add digwatch.fields() to Lua API
2016-03-01 21:54:20 +00:00
Henri DF
3195c8abea
formats.{cpp,h}: Get rid of global vars
2016-03-01 21:54:18 +00:00
Henri DF
0cdbdf9215
minor include cleanups
2016-03-01 10:49:19 -08:00
Henri DF
6a99c1a978
Basic support for function calls in outputs
2016-02-29 20:15:50 -08:00
Henri DF
1b7a5bd119
compiler: keep source in FunctionCall ASTs
2016-02-29 13:37:16 -08:00
Henri DF
55b2490314
coding convention
2016-02-28 21:14:46 -08:00
Henri DF
1c04ed7874
rework digwatch event output handling
...
the high-level change is that events matching a rule are now send into a
lua "on_event" function for handling, rather than doing the handling
down in c++.
more specifics:
before, the lua "load_rule" function registered formatters with
associated IDs with the c++ side, which later used this state to
reconcile events with formats and print output accordingly.
now, no such state is kept on the c++ side. the lua "load_rule" function
maintains the id->formatters map, and uses it to print outputs when it
receives events.
this change simplifies the existing flow and will also make the forthcoming
implementation of function outputs far simpler than it would have been
in the current setup.
2016-02-28 21:06:29 -08:00
Henri DF
f71de57a90
fix unused vars warning in digwatch.cpp
2016-02-28 20:28:47 -08:00
Henri DF
c695051990
rule_loader.lua: comments cleanups
2016-02-28 23:50:10 +00:00
Henri DF
6569f0372d
Grammar: support function-call syntax in outputs
...
This change adds syntax support for function call outputs. For example:
... | syslog(evt, WARN)
Regular outputs are still allowed and parsed in the same way.
2016-02-28 14:28:00 -08:00
Henri DF
733548b80b
Grammar: fix commas in lists
...
commas were (unintentionally) optional in lists. so a list like (a b c)
was a valid three-element list.
2016-02-28 14:24:54 -08:00
Henri DF
96942f8034
Grammar: parse array lookup in fields
2016-02-28 13:20:35 -08:00
Henri DF
4053b7241e
Fix 'in' clause expansion
2016-02-25 10:54:42 -08:00
Henri DF
eaeb360b31
Fix macro expansion
2016-02-25 10:54:28 -08:00
Henri DF
d62ea1df24
Support for comments in rules files
2016-02-24 15:47:19 -08:00
Henri DF
2428231c7a
Remove unneeded code from digwatch main
2016-02-24 10:32:14 -08:00
Henri DF
1a70d12525
whitespace
2016-02-24 09:17:26 -08:00
Henri DF
5f43446bfa
compiler.lua: Move macro checking into own file
2016-02-24 09:03:55 -08:00
Henri DF
a2ec9870de
compiler.lua: consistently use 'ast' instead of 'node'
2016-02-24 08:46:33 -08:00
Henri DF
e725be968e
rule_loader.lua: add/improve comments
2016-02-24 08:46:12 -08:00
Henri DF
a9d0268390
Move format handling into own class
2016-02-23 18:55:20 -08:00
Henri DF
636429c674
Move lua_State creation to digwatch main
2016-02-23 18:43:41 -08:00
Henri DF
3e73f01472
Always print events
...
Before this change, events were only printed if they had all the
fields (same behavior as with sysdig when the output format doesn't have
a leading "*"). With this change, all events are printed; those that
don't have all fields are prefixed with a notification.
2016-02-23 18:15:43 -08:00
Henri DF
2f105932fa
parser-smoke.sh: add a test
2016-02-23 11:35:11 -08:00
Henri DF
87186df85a
digwatch: use appropriate formatter for each event
2016-02-23 10:21:25 -08:00
Henri DF
a3976281a8
Pass rule indices down into filters
...
This allows to match events back up with the display output they are
associated with.
2016-02-23 18:09:52 +00:00
Henri DF
406f079621
Deep copy macro ASTs when expanding
...
So that we can individually tag expressions that originate from the same macro (see next commit).
2016-02-23 18:09:52 +00:00
Henri DF
3a56c1a0e4
AST: Rule node always has an Output child node
2016-02-23 18:09:52 +00:00
Henri DF
a7d0132154
Add 'sysdig.set_formatter' and use it in compiler
...
This allows the compiler to define per-rule formats. They are currently
instantiated and stored on the c++ side, but not being made use of yet.
2016-02-23 18:09:51 +00:00
Henri DF
426097241d
Move compiler state and AST grafting to rule_loader.lua
...
This is needed so that rule_loader (which should be renamed in a later pass..) can tag
filters with their index.
2016-02-22 18:07:54 -08:00
Henri DF
5ba821aaef
Fix handling of nested ASTs
2016-02-22 16:26:15 -08:00
Henri DF
d759e3b942
Fix macro expansion bug introduced with Rules
2016-02-22 16:01:40 -08:00
Henri DF
bba5aa6974
Add support for output formats
2016-02-22 21:31:21 +00:00
Henri DF
05362e2c68
compiler: don't fail on empty lines
2016-02-22 21:31:21 +00:00
Henri DF
7853260f38
fix test script
2016-02-22 21:31:21 +00:00
Henri DF
e5637d0cee
specify lua5.1 in test.lua
2016-02-22 21:31:21 +00:00
Henri DF
c7bafc9a49
Move lua/ to userspace/digwatch
2016-02-21 13:43:08 -08:00
Henri DF
3d58c3c9ae
Compile and load digwatch rules!
2016-02-20 21:25:41 -08:00
Henri DF
9fef5a7b29
Rework loading of Lua and rules files
2016-02-20 16:21:56 -08:00
Henri DF
9b89116a26
Add config_digwatch.h.in
2016-02-20 13:38:57 -08:00
Henri DF
9899680064
Lua parser refactoring
...
Move compiler loading out of libsinsp/lua_parser.cpp and into a new
class in digwatch/rules.cpp.
This way the libsinsp support is strictly about providing a lua API for
scripts to setup filters. Loading the actual parser and rules is logic
that belongs in the app (digwatch in this case, maybe sysdig down the
line) rather than there.
2016-02-19 20:30:23 -08:00
Henri DF
208930fd55
Simplify error handling in digwatch main
2016-02-19 14:50:51 -08:00
Henri DF
32ad5673c6
Pass filter object into sinsp::set_filter()
2016-02-18 21:09:26 -08:00
Henri DF
4c371e5b1d
Add curl dependency
2016-02-19 01:58:17 +00:00
Henri DF
0a294cd5e5
digwatch scaffolding
...
basic cmake setup and digwatch binary, mostly pulled from sysdig
2016-02-19 01:58:17 +00:00
