Ok, my preliminary suggestion is actually, remove scheduling and let systemd user (the ones in the home directory) configuration files do this instead. Perhaps it can be streamlined by you in some way. Realistically, I'm just thinking I don't need to run it more than once a week. Honestly I probably don't need to run it at all.

As I would like to avoid burning CPU cycles while I'm on the go it would be great of the automatic scan would not run when the machine in on battery power.

Should be possible to implement using the battery crate.

So I decided to install libre defender over just ClamAV being interested in the goal of being desktop-oriented. Unfortunately, I've found that on my laptop, it starts as soon as I get up (probably a system timer start on resume thing). When it runs, it uses so much CPU (io?) that my system... lags. Not to the point it's frozen, but to where it's obnoxious to use. All 8 cores of my CPU are maxed, and my IO seems to be running high. I checked htop/iotop, and it appears to be nice-ed and ionice-ed properly. So to some extent, it could be argued this is a kernel problem, a Wayland problem, etc. However, no other application causes this problem, not even when I'm doing intensive software development, only when it's doing a scan.

My first thought on resolving this? let me limit it to one core. I doubt, even if one core is running at max, that it causes my system to be unusable.

Linux manjaro 5.10.60-1-MANJARO #1 SMP PREEMPT Wed Aug 18 08:02:07 UTC 2021 x86_64 GNU/Linux

NOTE: This is a Thinkpad Carbon X1 Gen 8 (model released 2020), and I upgraded everything to the Max. Generally speaking, performance issues shouldn't be in its vocabulary.

P.S. Your README shows an example config file, but not where it goes ;).

I was attempting to work from a coffee shop this morning. After powering on my machine, I noticed that libredefender was attempting to run a scan, killing my battery.

Laptop: Lenovo Thinkpad P14s (AMD - Cezanne)

Laptop State prior - Fully Powered off. (Not in standby or hibernate)

Config:

[scan]
excludes = [
    # git repositories
    "/home/brogers/git/**/*",
]
## by default libredefender spawns one thread per cpu core
## set to 1 to use a single thread
#concurrency = 1
concurrency = 4
skip_hidden = false
#skip_larger_than = "30MiB"

[update]
## use data fetched by clamav-freshclam.service (default)
path = "/var/lib/clamav"

[schedule]
preferred_hours = "22:00:00-09:00:00"
## Do not run scans when on battery
skip_on_battery = true

I'm unsure if the logs will display anything useful. However, please let me know if log output would be helpful and which log to provide.

This change introduces a new configuration parameter scan_on_battery which makes it possible to skip a scan when running on battery. The default is true, which means that scans will be performed, even when running on battery. If the parameter is set to false the scan will be skipped if any battery is in state Discharging.

Fixes #27

Hello, I stumbled across this and decided that I'd give it a go, why not, looking for some antivirus stuff for Linux for the hell of it. However, every time I want to do a scan, this occurs.

[2021-06-03T08:02:37Z INFO  libredefender::scan] Initializing with libclamav 0.103.2
[2021-06-03T08:02:37Z WARN  libredefender::db] Failed to open existing database, using new one: Failed to open database: No such file or directory (os error 2)
[2021-06-03T08:02:37Z INFO  libredefender::scan] Empty arguments, defaulting to home directory
[2021-06-03T08:02:37Z INFO  libredefender::scan] Loading database from /var/lib/clamav...
[2021-06-03T08:02:45Z INFO  libredefender::scan] Checking database age...
Error: Failed to open clamav database

Caused by:
    No such file or directory (os error 2)
[ricochet@gamer ~]$

// However, I already have ClamAV setup and I have ran freshclam before.

// Here is a listing of my files in /var/lib/clamav:

[ricochet@gamer ~]$ cd /var/lib/clamav
[ricochet@gamer clamav]$ ls
bytecode.cvd  daily.cvd  main.cvd  mirrors.dat

Up to now we've been blind with regards to the information about batteries present in the system. This change should allow us to ask for debug output in case of problems.

Hi there

Thanks for creating this :)

I am trying to turn scheduled scanning off and have tried commenting out the schedule section, which didn't seem to work and am now trying with a preferred time of between 9am and 9:10am, to see what that does :)

Perhaps I need to delete crontab if I have previously enabled a schedule?

Thanks in advance

libredefender: /usr/lib/libclamav.so.9: no version information available (required by libredefender) libredefender: /usr/lib/libclamav.so.9: no version information available (required by libredefender) ❌ Last scan - ✅ Threats present 0 ❌ Signatures 0 ❌ Signatures updated -

After running freshclam and starting the freshclam service. Is it a permissions issue? Perhaps this needs to be run as root, is it intended to be run as root? Documentation does not specify.

Only actual files should be opened. Directories are logged but walkdir already traverses them on its own so we're can safely skip them too.

Resolves #8

Running freshclam for the first time creates cvd files, the next time that file seems to be renamed to cld. This patch reads the database age from the cvd file if no cld file was found.

Resolves #3

Hi, i tried compile source code on FreeBSD 13.1 and cargo 1.63.0, rustc 1.63.0 and I have issue with missing libc compile_rust_libredeferender.TXT

     |

error[E0277]: the trait bound `<<D as si::Dimension>::L as std::ops::Neg>::Output: Integer` is not satisfied
   --> code/FreeBSD-Ports/libredefender/work/libredefender-0.6.0/cargo-crates/uom-0.21.1/src/system.rs:716:18
    |
716 |               ) -> Quantity<$quantities<$($crate::typenum::Negate<D::$symbol>),+>, U, V>
    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Integer` is not implemented for `<<D as si::Dimension>::L as std::ops::Neg>::Output`
    |
   ::: code/FreeBSD-Ports/libredefender/work/libredefender-0.6.0/cargo-crates/uom-0.21.1/src/si/mod.rs:10:1
    |
10  | / system! {
11  | |     /// [International System of Quantities](http://jcgm.bipm.org/vim/en/1.6.html) (ISQ).
12  | |     quantities: ISQ {
13  | |         length: meter, L;
...   |
55  | |     }
56  | | }
    | |_- in this macro invocation
    |
note: required by a bound in `si::Quantity`
   --> code/FreeBSD-Ports/libredefender/work/libredefender-0.6.0/cargo-crates/uom-0.21.1/src/system.rs:232:16
    |
230 |           pub struct Quantity<D, U, V>
    |                      -------- required by a bound in this
231 |           where
232 |               D: Dimension + ?Sized,
    |                  ^^^^^^^^^ required by this bound in `si::Quantity`
    |
   ::: code/FreeBSD-Ports/libredefender/work/libredefender-0.6.0/cargo-crates/uom-0.21.1/src/si/mod.rs:10:1
    |
10  | / system! {
11  | |     /// [International System of Quantities](http://jcgm.bipm.org/vim/en/1.6.html) (ISQ).
12  | |     quantities: ISQ {
13  | |         length: meter, L;
...   |
55  | |     }
56  | | }
    | |_- in this macro invocation
    = note: this error originates in the macro `system` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `<<D as si::Dimension>::M as std::ops::Neg>::Output: Integer` is not satisfied
   --> code/FreeBSD-Ports/libredefender/work/libredefender-0.6.0/cargo-crates/uom-0.21.1/src/system.rs:716:18
    |
716 |               ) -> Quantity<$quantities<$($crate::typenum::Negate<D::$symbol>),+>, U, V>
    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Integer` is not implemented for `<<D as si::Dimension>::M as std::ops::Neg>::Output`
    |
   ::: code/FreeBSD-Ports/libredefender/work/libredefender-0.6.0/cargo-crates/uom-0.21.1/src/si/mod.rs:10:1
    |
10  | / system! {
11  | |     /// [International System of Quantities](http://jcgm.bipm.org/vim/en/1.6.html) (ISQ).
12  | |     quantities: ISQ {
13  | |         length: meter, L;
...   |
55  | |     }
56  | | }

Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: [2022-03-18T04:18:56Z ERROR libredefender::schedule] Error: Failed to load clamav database: cl_error 8: Can't open file or directory
Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: [2022-03-18T04:18:56Z INFO  libredefender::schedule] Sleeping for 0h 0m 0s (2022-03-18 04:18:56 +00:00)...
Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: [2022-03-18T04:18:56Z INFO  libredefender::scan] Scanning home directory: "/home/satoshi"
Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: [2022-03-18T04:18:56Z INFO  libredefender::scan] Loading database from /var/lib/clamav...
Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: LibClamAV Error: cli_loaddbdir: No supported database files found in /var/lib/clamav
Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: [2022-03-18T04:18:56Z ERROR libredefender::schedule] Error: Failed to load clamav database: cl_error 8: Can't open file or directory
Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: [2022-03-18T04:18:56Z INFO  libredefender::schedule] Sleeping for 0h 0m 0s (2022-03-18 04:18:56 +00:00)...
Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: [2022-03-18T04:18:56Z INFO  libredefender::scan] Scanning home directory: "/home/satoshi"
Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: [2022-03-18T04:18:56Z INFO  libredefender::scan] Loading database from /var/lib/clamav...
Mar 18 04:18:56 xiaomi13 libredefender.desktop[16403]: LibClamAV Error: cli_loaddbdir: No supported database files found in /var/lib/clamav

found my journalctl spammed with following errors