gardesk/gardm / 41a679f

Browse files

power actions via logind and deployment scripts

Add systemd-logind integration for power actions (shutdown, reboot,
suspend) via D-Bus. Update system configuration for Fedora compatibility.

Changes:
- Add zbus dependency for D-Bus communication
- Add power.rs module with logind integration
- Update PAM config based on SDDM's Fedora configuration
- Update systemd service for better compatibility
- Add deployment scripts:
- install.sh: installs binaries, configs, and service
- test-gardm.sh: safe testing on separate VT/display
- swap-dm.sh: safely swap from SDDM to gardm with rollback
Authored by mfwolffe <wolffemf@dukes.jmu.edu>
SHA
41a679f2d9f786d94b46f2a3b929fbba99d251d2
Parents
839cdcb
Tree
ed836da

10 changed files

StatusFile+-
M Cargo.lock 673 10
M etc/gardm.service 7 10
M etc/pam.d/gardm 22 6
M gardmd/Cargo.toml 1 0
M gardmd/src/lib.rs 1 0
M gardmd/src/main.rs 27 19
A gardmd/src/power.rs 91 0
A scripts/install.sh 87 0
A scripts/swap-dm.sh 173 0
A scripts/test-gardm.sh 87 0
Cargo.lockmodified
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@@ -123,6 +271,28 @@ version = "2.10.0"
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+[[package]]
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 [[package]]
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 [[package]]
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 [[package]]
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@@ -347,6 +588,27 @@ dependencies = [
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 ]
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 ]
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 ]
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 ]
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 ]
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 ]
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 dependencies = [
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+ "zbus",
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 ]
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 [[package]]
802
 [[package]]
@@ -519,6 +820,18 @@ dependencies = [
519
  "wasi",
820
  "wasi",
520
 ]
821
 ]
521
 
822
 
823
+[[package]]
824
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825
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826
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829
+ "cfg-if",
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+ "libc",
831
+ "r-efi",
832
+ "wasip2",
833
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834
+
522
 [[package]]
835
 [[package]]
523
 name = "gif"
836
 name = "gif"
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837
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@@ -591,7 +904,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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 checksum = "0bb0228f477c0900c880fd78c8759b95c7636dbd7842707f49e132378aa2acdc"
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 checksum = "0bb0228f477c0900c880fd78c8759b95c7636dbd7842707f49e132378aa2acdc"
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 dependencies = [
905
 dependencies = [
593
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594
- "proc-macro-crate",
907
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  "proc-macro-error",
908
  "proc-macro-error",
596
  "proc-macro2",
909
  "proc-macro2",
597
  "quote",
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654
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 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
656
 
969
 
970
+[[package]]
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972
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+
657
 [[package]]
982
 [[package]]
658
 name = "image"
983
 name = "image"
659
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984
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@@ -782,6 +1107,15 @@ version = "2.7.6"
782
 source = "registry+https://github.com/rust-lang/crates.io-index"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
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1108
 checksum = "f52b00d39961fc5b2736ea853c9cc86238e165017a493d1d5c8eac6bdc4cc273"
784
 
1109
 
1110
+[[package]]
1111
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1112
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1116
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1118
+
785
 [[package]]
1119
 [[package]]
786
 name = "minimal-lexical"
1120
 name = "minimal-lexical"
787
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1121
 version = "0.2.1"
@@ -820,6 +1154,19 @@ dependencies = [
820
  "libc",
1154
  "libc",
821
 ]
1155
 ]
822
 
1156
 
1157
+[[package]]
1158
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1159
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1160
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1162
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1163
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1164
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1165
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1167
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1168
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1169
+
823
 [[package]]
1170
 [[package]]
824
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1171
 name = "nom"
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1172
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@@ -866,6 +1213,16 @@ version = "0.2.0"
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1213
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1214
 checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
868
 
1215
 
1216
+[[package]]
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869
 [[package]]
1226
 [[package]]
870
 name = "pam-client"
1227
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1228
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@@ -941,6 +1298,12 @@ dependencies = [
941
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1298
  "system-deps",
942
 ]
1299
 ]
943
 
1300
 
1301
+[[package]]
1302
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1303
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944
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 [[package]]
945
 name = "parking_lot"
1308
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1309
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@@ -976,6 +1339,17 @@ version = "0.1.0"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
1339
 source = "registry+https://github.com/rust-lang/crates.io-index"
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 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
1340
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
978
 
1341
 
1342
+[[package]]
1343
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1344
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1348
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+ "fastrand",
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+ "futures-io",
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1352
+
979
 [[package]]
1353
 [[package]]
980
 name = "pkg-config"
1354
 name = "pkg-config"
981
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1355
 version = "0.3.32"
@@ -995,14 +1369,46 @@ dependencies = [
995
  "miniz_oxide",
1369
  "miniz_oxide",
996
 ]
1370
 ]
997
 
1371
 
1372
+[[package]]
1373
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1378
+ "cfg-if",
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+ "concurrent-queue",
1380
+ "hermit-abi",
1381
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1382
+ "rustix",
1383
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1384
+]
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1386
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1392
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1393
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998
 [[package]]
1395
 [[package]]
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 name = "proc-macro-crate"
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1003
 dependencies = [
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 dependencies = [
1004
- "toml_datetime",
1401
+ "toml_datetime 0.6.3",
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1411
+ "toml_edit 0.23.10+spec-1.0.0",
1006
 ]
1412
 ]
1007
 
1413
 
1008
 [[package]]
1414
 [[package]]
@@ -1056,6 +1462,42 @@ dependencies = [
1056
  "proc-macro2",
1462
  "proc-macro2",
1057
 ]
1463
 ]
1058
 
1464
 
1465
+[[package]]
1466
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1467
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+ "libc",
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+ "rand_chacha",
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+ "rand_core",
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1482
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+ "ppv-lite86",
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1500
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 [[package]]
1501
 [[package]]
1060
 name = "rayon"
1502
 name = "rayon"
1061
 version = "1.11.0"
1503
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@@ -1091,7 +1533,7 @@ version = "0.5.2"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
1533
 source = "registry+https://github.com/rust-lang/crates.io-index"
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 checksum = "a4e608c6638b9c18977b00b475ac1f28d14e84b27d8d42f70e0bf1e3dec127ac"
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 dependencies = [
1535
 dependencies = [
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- "getrandom",
1536
+ "getrandom 0.2.17",
1095
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@@ -1241,6 +1683,17 @@ dependencies = [
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  "zmij",
1242
 ]
1684
 ]
1243
 
1685
 
1686
+[[package]]
1687
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1688
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1689
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1691
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 [[package]]
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 [[package]]
1245
 name = "serde_spanned"
1698
 name = "serde_spanned"
1246
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1699
 version = "0.6.9"
@@ -1250,6 +1703,17 @@ dependencies = [
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1703
  "serde",
1251
 ]
1704
 ]
1252
 
1705
 
1706
+[[package]]
1707
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1708
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+ "cfg-if",
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+ "cpufeatures",
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+ "digest",
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+]
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1253
 [[package]]
1717
 [[package]]
1254
 name = "sharded-slab"
1718
 name = "sharded-slab"
1255
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1719
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@@ -1312,6 +1776,12 @@ dependencies = [
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1313
 ]
1777
 ]
1314
 
1778
 
1779
+[[package]]
1780
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1315
 [[package]]
1785
 [[package]]
1316
 name = "strsim"
1786
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1317
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1787
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@@ -1359,6 +1829,19 @@ version = "0.12.16"
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1829
 source = "registry+https://github.com/rust-lang/crates.io-index"
1360
 checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
1830
 checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
1361
 
1831
 
1832
+[[package]]
1833
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1834
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1835
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1837
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1839
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1841
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1843
+]
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1362
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 [[package]]
1363
 name = "thiserror"
1846
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1847
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@@ -1455,8 +1938,8 @@ checksum = "185d8ab0dfbb35cf1399a6344d8484209c088f75f8f68230da55d48d95d43e3d"
1455
 dependencies = [
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 dependencies = [
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  "serde",
1939
  "serde",
1457
  "serde_spanned",
1940
  "serde_spanned",
1458
- "toml_datetime",
1941
+ "toml_datetime 0.6.3",
1459
- "toml_edit",
1942
+ "toml_edit 0.20.2",
1460
 ]
1943
 ]
1461
 
1944
 
1462
 [[package]]
1945
 [[package]]
@@ -1468,6 +1951,15 @@ dependencies = [
1468
  "serde",
1951
  "serde",
1469
 ]
1952
 ]
1470
 
1953
 
1954
+[[package]]
1955
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1956
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+ "serde_core",
1961
+]
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+
1471
 [[package]]
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 [[package]]
1472
 name = "toml_edit"
1964
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1473
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1965
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@@ -1477,8 +1969,29 @@ dependencies = [
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1969
  "indexmap",
1478
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1970
  "serde",
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  "serde_spanned",
1971
  "serde_spanned",
1480
- "toml_datetime",
1972
+ "toml_datetime 0.6.3",
1481
- "winnow",
1973
+ "winnow 0.5.40",
1974
+]
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+
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+[[package]]
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1978
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1981
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1982
+ "indexmap",
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+ "toml_datetime 0.7.5+spec-1.1.0",
1984
+ "toml_parser",
1985
+ "winnow 0.7.14",
1986
+]
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+
1988
+[[package]]
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1993
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1994
+ "winnow 0.7.14",
1482
 ]
1995
 ]
1483
 
1996
 
1484
 [[package]]
1997
 [[package]]
@@ -1542,6 +2055,23 @@ dependencies = [
1542
  "tracing-log",
2055
  "tracing-log",
1543
 ]
2056
 ]
1544
 
2057
 
2058
+[[package]]
2059
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2060
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2061
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2063
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2075
 [[package]]
1546
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2076
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2077
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@@ -1578,6 +2108,15 @@ version = "0.11.1+wasi-snapshot-preview1"
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2108
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2109
 checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
1580
 
2110
 
2111
+[[package]]
2112
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2113
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+source = "registry+https://github.com/rust-lang/crates.io-index"
2115
+checksum = "0562428422c63773dad2c345a1882263bbf4d65cf3f42e90921f787ef5ad58e7"
2116
+dependencies = [
2117
+ "wit-bindgen",
2118
+]
2119
+
1581
 [[package]]
2120
 [[package]]
1582
 name = "weezl"
2121
 name = "weezl"
1583
 version = "0.1.12"
2122
 version = "0.1.12"
@@ -1786,6 +2325,21 @@ dependencies = [
1786
  "memchr",
2325
  "memchr",
1787
 ]
2326
 ]
1788
 
2327
 
2328
+[[package]]
2329
+name = "winnow"
2330
+version = "0.7.14"
2331
+source = "registry+https://github.com/rust-lang/crates.io-index"
2332
+checksum = "5a5364e9d77fcdeeaa6062ced926ee3381faa2ee02d3eb83a5c27a8825540829"
2333
+dependencies = [
2334
+ "memchr",
2335
+]
2336
+
2337
+[[package]]
2338
+name = "wit-bindgen"
2339
+version = "0.46.0"
2340
+source = "registry+https://github.com/rust-lang/crates.io-index"
2341
+checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
2342
+
1789
 [[package]]
2343
 [[package]]
1790
 name = "x11rb"
2344
 name = "x11rb"
1791
 version = "0.13.2"
2345
 version = "0.13.2"
@@ -1805,6 +2359,78 @@ version = "0.13.2"
1805
 source = "registry+https://github.com/rust-lang/crates.io-index"
2359
 source = "registry+https://github.com/rust-lang/crates.io-index"
1806
 checksum = "ea6fc2961e4ef194dcbfe56bb845534d0dc8098940c7e5c012a258bfec6701bd"
2360
 checksum = "ea6fc2961e4ef194dcbfe56bb845534d0dc8098940c7e5c012a258bfec6701bd"
1807
 
2361
 
2362
+[[package]]
2363
+name = "xdg-home"
2364
+version = "1.3.0"
2365
+source = "registry+https://github.com/rust-lang/crates.io-index"
2366
+checksum = "ec1cdab258fb55c0da61328dc52c8764709b249011b2cad0454c72f0bf10a1f6"
2367
+dependencies = [
2368
+ "libc",
2369
+ "windows-sys 0.59.0",
2370
+]
2371
+
2372
+[[package]]
2373
+name = "zbus"
2374
+version = "4.4.0"
2375
+source = "registry+https://github.com/rust-lang/crates.io-index"
2376
+checksum = "bb97012beadd29e654708a0fdb4c84bc046f537aecfde2c3ee0a9e4b4d48c725"
2377
+dependencies = [
2378
+ "async-broadcast",
2379
+ "async-executor",
2380
+ "async-fs",
2381
+ "async-io",
2382
+ "async-lock",
2383
+ "async-process",
2384
+ "async-recursion",
2385
+ "async-task",
2386
+ "async-trait",
2387
+ "blocking",
2388
+ "enumflags2",
2389
+ "event-listener",
2390
+ "futures-core",
2391
+ "futures-sink",
2392
+ "futures-util",
2393
+ "hex",
2394
+ "nix 0.29.0",
2395
+ "ordered-stream",
2396
+ "rand",
2397
+ "serde",
2398
+ "serde_repr",
2399
+ "sha1",
2400
+ "static_assertions",
2401
+ "tracing",
2402
+ "uds_windows",
2403
+ "windows-sys 0.52.0",
2404
+ "xdg-home",
2405
+ "zbus_macros",
2406
+ "zbus_names",
2407
+ "zvariant",
2408
+]
2409
+
2410
+[[package]]
2411
+name = "zbus_macros"
2412
+version = "4.4.0"
2413
+source = "registry+https://github.com/rust-lang/crates.io-index"
2414
+checksum = "267db9407081e90bbfa46d841d3cbc60f59c0351838c4bc65199ecd79ab1983e"
2415
+dependencies = [
2416
+ "proc-macro-crate 3.4.0",
2417
+ "proc-macro2",
2418
+ "quote",
2419
+ "syn 2.0.114",
2420
+ "zvariant_utils",
2421
+]
2422
+
2423
+[[package]]
2424
+name = "zbus_names"
2425
+version = "3.0.0"
2426
+source = "registry+https://github.com/rust-lang/crates.io-index"
2427
+checksum = "4b9b1fef7d021261cc16cba64c351d291b715febe0fa10dc3a443ac5a5022e6c"
2428
+dependencies = [
2429
+ "serde",
2430
+ "static_assertions",
2431
+ "zvariant",
2432
+]
2433
+
1808
 [[package]]
2434
 [[package]]
1809
 name = "zerocopy"
2435
 name = "zerocopy"
1810
 version = "0.8.33"
2436
 version = "0.8.33"
@@ -1839,3 +2465,40 @@ checksum = "73ab332fe2f6680068f3582b16a24f90ad7096d5d39b974d1c0aff0125116f02"
1839
 dependencies = [
2465
 dependencies = [
1840
  "simd-adler32",
2466
  "simd-adler32",
1841
 ]
2467
 ]
2468
+
2469
+[[package]]
2470
+name = "zvariant"
2471
+version = "4.2.0"
2472
+source = "registry+https://github.com/rust-lang/crates.io-index"
2473
+checksum = "2084290ab9a1c471c38fc524945837734fbf124487e105daec2bb57fd48c81fe"
2474
+dependencies = [
2475
+ "endi",
2476
+ "enumflags2",
2477
+ "serde",
2478
+ "static_assertions",
2479
+ "zvariant_derive",
2480
+]
2481
+
2482
+[[package]]
2483
+name = "zvariant_derive"
2484
+version = "4.2.0"
2485
+source = "registry+https://github.com/rust-lang/crates.io-index"
2486
+checksum = "73e2ba546bda683a90652bac4a279bc146adad1386f25379cf73200d2002c449"
2487
+dependencies = [
2488
+ "proc-macro-crate 3.4.0",
2489
+ "proc-macro2",
2490
+ "quote",
2491
+ "syn 2.0.114",
2492
+ "zvariant_utils",
2493
+]
2494
+
2495
+[[package]]
2496
+name = "zvariant_utils"
2497
+version = "2.1.0"
2498
+source = "registry+https://github.com/rust-lang/crates.io-index"
2499
+checksum = "c51bcff7cc3dbb5055396bcf774748c3dab426b4b8659046963523cee4808340"
2500
+dependencies = [
2501
+ "proc-macro2",
2502
+ "quote",
2503
+ "syn 2.0.114",
2504
+]
etc/gardm.servicemodified
@@ -1,8 +1,11 @@ 
1
 [Unit]
1
 [Unit]
2
 Description=gar Display Manager
2
 Description=gar Display Manager
3
 Documentation=https://github.com/mfwolffe/gardesk
3
 Documentation=https://github.com/mfwolffe/gardesk
4
-After=systemd-user-sessions.service getty@tty1.service plymouth-quit.service
4
+After=systemd-user-sessions.service getty@tty1.service plymouth-quit.service systemd-logind.service
5
 Conflicts=getty@tty1.service
5
 Conflicts=getty@tty1.service
6
+PartOf=graphical.target
7
+StartLimitIntervalSec=30
8
+StartLimitBurst=2
6
 
9
 
7
 [Service]
10
 [Service]
8
 Type=notify
11
 Type=notify
@@ -10,16 +13,10 @@ ExecStart=/usr/bin/gardmd
10
 ExecReload=/bin/kill -HUP $MAINPID
13
 ExecReload=/bin/kill -HUP $MAINPID
11
 Restart=always
14
 Restart=always
12
 RestartSec=1
15
 RestartSec=1
16
+EnvironmentFile=-/etc/sysconfig/gardm
13
 
17
 
14
-# Security hardening
18
+# Minimal security hardening (display managers need broad access)
15
-NoNewPrivileges=no
19
+PrivateTmp=no
16
-ProtectSystem=strict
17
-ProtectHome=read-only
18
-PrivateTmp=yes
19
-ReadWritePaths=/run
20
-
21
-# PAM needs access to various system files
22
-ReadOnlyPaths=/etc/passwd /etc/shadow /etc/group /etc/pam.d
23
 
20
 
24
 [Install]
21
 [Install]
25
 Alias=display-manager.service
22
 Alias=display-manager.service
etc/pam.d/gardmmodified
@@ -1,7 +1,23 @@ 
1
 #%PAM-1.0
1
 #%PAM-1.0
2
-auth       required     pam_securetty.so
2
+# PAM configuration for gardm display manager
3
-auth       requisite    pam_nologin.so
3
+# Based on SDDM's Fedora configuration
4
-auth       include      system-local-login
4
+
5
-account    include      system-local-login
5
+# SELinux permit (Fedora-specific)
6
-session    include      system-local-login
6
+auth     [success=done ignore=ignore default=bad] pam_selinux_permit.so
7
-password   include      system-local-login
7
+auth        substack      password-auth
8
+-auth       optional      pam_gnome_keyring.so
9
+auth        include       postlogin
10
+
11
+account     required      pam_nologin.so
12
+account     include       password-auth
13
+
14
+password    include       password-auth
15
+
16
+session     required      pam_selinux.so close
17
+session     required      pam_loginuid.so
18
+session     required      pam_selinux.so open
19
+session     optional      pam_keyinit.so force revoke
20
+session     required      pam_namespace.so
21
+session     include       password-auth
22
+-session    optional      pam_gnome_keyring.so auto_start
23
+session     include       postlogin
gardmd/Cargo.tomlmodified
@@ -25,3 +25,4 @@ x11rb = { workspace = true }
25
 clap = { workspace = true }
25
 clap = { workspace = true }
26
 libc = "0.2"
26
 libc = "0.2"
27
 sd-notify = "0.4"
27
 sd-notify = "0.4"
28
+zbus = "4"
gardmd/src/lib.rsmodified
@@ -6,6 +6,7 @@ pub mod auth;
6
 pub mod config;
6
 pub mod config;
7
 pub mod greeter;
7
 pub mod greeter;
8
 pub mod ipc;
8
 pub mod ipc;
9
+pub mod power;
9
 pub mod session;
10
 pub mod session;
10
 pub mod sessions;
11
 pub mod sessions;
11
 pub mod vt;
12
 pub mod vt;
gardmd/src/main.rsmodified
@@ -309,33 +309,41 @@ async fn handle_greeter_request(
309
 
309
 
310
         Request::Shutdown => {
310
         Request::Shutdown => {
311
             tracing::info!("Shutdown requested");
311
             tracing::info!("Shutdown requested");
312
-            // TODO: Implement via logind
312
+            match gardmd::power::execute_async(gardmd::power::PowerAction::Shutdown).await {
313
-            (
313
+                Ok(()) => (Response::Success, None),
314
-                Response::Error {
314
+                Err(e) => (
315
-                    message: "Shutdown not yet implemented".to_string(),
315
+                    Response::Error {
316
-                },
316
+                        message: format!("Shutdown failed: {}", e),
317
-                None,
317
+                    },
318
-            )
318
+                    None,
319
+                ),
320
+            }
319
         }
321
         }
320
 
322
 
321
         Request::Reboot => {
323
         Request::Reboot => {
322
             tracing::info!("Reboot requested");
324
             tracing::info!("Reboot requested");
323
-            (
325
+            match gardmd::power::execute_async(gardmd::power::PowerAction::Reboot).await {
324
-                Response::Error {
326
+                Ok(()) => (Response::Success, None),
325
-                    message: "Reboot not yet implemented".to_string(),
327
+                Err(e) => (
326
-                },
328
+                    Response::Error {
327
-                None,
329
+                        message: format!("Reboot failed: {}", e),
328
-            )
330
+                    },
331
+                    None,
332
+                ),
333
+            }
329
         }
334
         }
330
 
335
 
331
         Request::Suspend => {
336
         Request::Suspend => {
332
             tracing::info!("Suspend requested");
337
             tracing::info!("Suspend requested");
333
-            (
338
+            match gardmd::power::execute_async(gardmd::power::PowerAction::Suspend).await {
334
-                Response::Error {
339
+                Ok(()) => (Response::Success, None),
335
-                    message: "Suspend not yet implemented".to_string(),
340
+                Err(e) => (
336
-                },
341
+                    Response::Error {
337
-                None,
342
+                        message: format!("Suspend failed: {}", e),
338
-            )
343
+                    },
344
+                    None,
345
+                ),
346
+            }
339
         }
347
         }
340
 
348
 
341
         Request::ListSessions => {
349
         Request::ListSessions => {
gardmd/src/power.rsadded
@@ -0,0 +1,91 @@ 
1
+//! Power management via systemd-logind
2
+//!
3
+//! Implements shutdown, reboot, and suspend via D-Bus calls to logind.
4
+
5
+use anyhow::{Context, Result};
6
+use zbus::blocking::Connection;
7
+
8
+/// Power action to perform
9
+#[derive(Debug, Clone, Copy)]
10
+pub enum PowerAction {
11
+    Shutdown,
12
+    Reboot,
13
+    Suspend,
14
+}
15
+
16
+impl PowerAction {
17
+    /// Get the logind method name for this action
18
+    fn method_name(&self) -> &'static str {
19
+        match self {
20
+            PowerAction::Shutdown => "PowerOff",
21
+            PowerAction::Reboot => "Reboot",
22
+            PowerAction::Suspend => "Suspend",
23
+        }
24
+    }
25
+}
26
+
27
+/// Execute a power action via logind
28
+pub fn execute(action: PowerAction) -> Result<()> {
29
+    let conn = Connection::system().context("Failed to connect to system D-Bus")?;
30
+
31
+    // Call org.freedesktop.login1.Manager.<Action>(interactive: bool)
32
+    // interactive=false means no polkit prompt
33
+    conn.call_method(
34
+        Some("org.freedesktop.login1"),
35
+        "/org/freedesktop/login1",
36
+        Some("org.freedesktop.login1.Manager"),
37
+        action.method_name(),
38
+        &(false,), // interactive = false
39
+    )
40
+    .context(format!("Failed to execute {:?}", action))?;
41
+
42
+    Ok(())
43
+}
44
+
45
+/// Async version of execute using zbus async API
46
+pub async fn execute_async(action: PowerAction) -> Result<()> {
47
+    let conn = zbus::Connection::system()
48
+        .await
49
+        .context("Failed to connect to system D-Bus")?;
50
+
51
+    conn.call_method(
52
+        Some("org.freedesktop.login1"),
53
+        "/org/freedesktop/login1",
54
+        Some("org.freedesktop.login1.Manager"),
55
+        action.method_name(),
56
+        &(false,),
57
+    )
58
+    .await
59
+    .context(format!("Failed to execute {:?}", action))?;
60
+
61
+    Ok(())
62
+}
63
+
64
+/// Check if a power action is allowed (can be performed without authentication)
65
+pub async fn can_execute(action: PowerAction) -> Result<bool> {
66
+    let conn = zbus::Connection::system()
67
+        .await
68
+        .context("Failed to connect to system D-Bus")?;
69
+
70
+    let can_method = match action {
71
+        PowerAction::Shutdown => "CanPowerOff",
72
+        PowerAction::Reboot => "CanReboot",
73
+        PowerAction::Suspend => "CanSuspend",
74
+    };
75
+
76
+    let reply: zbus::Message = conn
77
+        .call_method(
78
+            Some("org.freedesktop.login1"),
79
+            "/org/freedesktop/login1",
80
+            Some("org.freedesktop.login1.Manager"),
81
+            can_method,
82
+            &(),
83
+        )
84
+        .await
85
+        .context(format!("Failed to check {:?} capability", action))?;
86
+
87
+    let result: String = reply.body().deserialize().context("Failed to parse reply")?;
88
+
89
+    // Returns "yes", "no", "challenge" (needs auth), or "na" (not applicable)
90
+    Ok(result == "yes")
91
+}
scripts/install.shadded
@@ -0,0 +1,87 @@ 
1
+#!/bin/bash
2
+# gardm installation script
3
+# Installs gardm (gar display manager) system-wide
4
+
5
+set -e
6
+
7
+# Colors for output
8
+RED='\033[0;31m'
9
+GREEN='\033[0;32m'
10
+YELLOW='\033[1;33m'
11
+NC='\033[0m' # No Color
12
+
13
+log_info() {
14
+    echo -e "${GREEN}[INFO]${NC} $1"
15
+}
16
+
17
+log_warn() {
18
+    echo -e "${YELLOW}[WARN]${NC} $1"
19
+}
20
+
21
+log_error() {
22
+    echo -e "${RED}[ERROR]${NC} $1"
23
+}
24
+
25
+# Check if running as root
26
+if [ "$EUID" -ne 0 ]; then
27
+    log_error "Please run as root (sudo ./install.sh)"
28
+    exit 1
29
+fi
30
+
31
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
32
+PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
33
+
34
+log_info "Installing gardm from $PROJECT_DIR"
35
+
36
+# Build release binaries
37
+log_info "Building release binaries..."
38
+cd "$PROJECT_DIR"
39
+cargo build --release -p gardmd -p gardm-greeter
40
+
41
+# Install binaries
42
+log_info "Installing binaries to /usr/bin..."
43
+install -Dm755 target/release/gardmd /usr/bin/gardmd
44
+install -Dm755 target/release/gardm-greeter /usr/bin/gardm-greeter
45
+
46
+# Create config directories
47
+log_info "Creating configuration directories..."
48
+mkdir -p /etc/gardm
49
+mkdir -p /usr/share/gardm/backgrounds
50
+
51
+# Install PAM configuration
52
+log_info "Installing PAM configuration..."
53
+install -Dm644 etc/pam.d/gardm /etc/pam.d/gardm
54
+
55
+# Install systemd service
56
+log_info "Installing systemd service..."
57
+install -Dm644 etc/gardm.service /usr/lib/systemd/system/gardm.service
58
+
59
+# Install default config if not exists
60
+if [ ! -f /etc/gardm/config.toml ]; then
61
+    log_info "Installing default configuration..."
62
+    install -Dm644 etc/config.toml /etc/gardm/config.toml
63
+else
64
+    log_warn "/etc/gardm/config.toml already exists, not overwriting"
65
+fi
66
+
67
+# Create sysconfig file (empty, for environment overrides)
68
+if [ ! -f /etc/sysconfig/gardm ]; then
69
+    echo "# Environment variables for gardm" > /etc/sysconfig/gardm
70
+    chmod 644 /etc/sysconfig/gardm
71
+fi
72
+
73
+# Reload systemd
74
+log_info "Reloading systemd daemon..."
75
+systemctl daemon-reload
76
+
77
+log_info "Installation complete!"
78
+echo ""
79
+echo "To enable gardm as your display manager:"
80
+echo "  1. First, TEST gardm (see scripts/test-gardm.sh)"
81
+echo "  2. Then disable your current display manager:"
82
+echo "     sudo systemctl disable sddm  # or gdm, lightdm, etc."
83
+echo "  3. Enable gardm:"
84
+echo "     sudo systemctl enable gardm"
85
+echo "  4. Reboot"
86
+echo ""
87
+log_warn "ALWAYS keep a terminal/tty login available as fallback!"
scripts/swap-dm.shadded
@@ -0,0 +1,173 @@ 
1
+#!/bin/bash
2
+# Safely swap display managers (e.g., SDDM -> gardm)
3
+# This script includes safety checks and rollback instructions
4
+
5
+set -e
6
+
7
+RED='\033[0;31m'
8
+GREEN='\033[0;32m'
9
+YELLOW='\033[1;33m'
10
+BLUE='\033[0;34m'
11
+NC='\033[0m'
12
+
13
+log_info() {
14
+    echo -e "${GREEN}[INFO]${NC} $1"
15
+}
16
+
17
+log_warn() {
18
+    echo -e "${YELLOW}[WARN]${NC} $1"
19
+}
20
+
21
+log_error() {
22
+    echo -e "${RED}[ERROR]${NC} $1"
23
+}
24
+
25
+log_step() {
26
+    echo -e "${BLUE}[STEP]${NC} $1"
27
+}
28
+
29
+if [ "$EUID" -ne 0 ]; then
30
+    log_error "Please run as root (sudo ./swap-dm.sh)"
31
+    exit 1
32
+fi
33
+
34
+echo "============================================"
35
+echo "  gardm Display Manager Swap Utility"
36
+echo "============================================"
37
+echo ""
38
+
39
+# Detect current display manager
40
+CURRENT_DM=""
41
+for dm in sddm gdm gdm3 lightdm lxdm; do
42
+    if systemctl is-enabled "$dm" >/dev/null 2>&1; then
43
+        CURRENT_DM="$dm"
44
+        break
45
+    fi
46
+done
47
+
48
+if [ -z "$CURRENT_DM" ]; then
49
+    log_warn "Could not detect current display manager"
50
+    echo "Which display manager are you currently using?"
51
+    echo "  1) sddm"
52
+    echo "  2) gdm"
53
+    echo "  3) lightdm"
54
+    echo "  4) other"
55
+    read -p "Selection [1-4]: " choice
56
+    case $choice in
57
+        1) CURRENT_DM="sddm" ;;
58
+        2) CURRENT_DM="gdm" ;;
59
+        3) CURRENT_DM="lightdm" ;;
60
+        *)
61
+            read -p "Enter the service name: " CURRENT_DM
62
+            ;;
63
+    esac
64
+fi
65
+
66
+log_info "Detected current display manager: $CURRENT_DM"
67
+echo ""
68
+
69
+# Pre-flight checks
70
+log_step "Running pre-flight checks..."
71
+
72
+# Check gardm is installed
73
+if [ ! -x /usr/bin/gardmd ]; then
74
+    log_error "gardmd not found at /usr/bin/gardmd"
75
+    log_error "Please run install.sh first"
76
+    exit 1
77
+fi
78
+
79
+if [ ! -x /usr/bin/gardm-greeter ]; then
80
+    log_error "gardm-greeter not found at /usr/bin/gardm-greeter"
81
+    log_error "Please run install.sh first"
82
+    exit 1
83
+fi
84
+
85
+# Check systemd service exists
86
+if [ ! -f /usr/lib/systemd/system/gardm.service ]; then
87
+    log_error "gardm.service not found"
88
+    log_error "Please run install.sh first"
89
+    exit 1
90
+fi
91
+
92
+# Check PAM config
93
+if [ ! -f /etc/pam.d/gardm ]; then
94
+    log_error "PAM configuration not found at /etc/pam.d/gardm"
95
+    log_error "Please run install.sh first"
96
+    exit 1
97
+fi
98
+
99
+log_info "All pre-flight checks passed"
100
+echo ""
101
+
102
+# Safety warnings
103
+echo "============================================"
104
+echo "  IMPORTANT SAFETY INFORMATION"
105
+echo "============================================"
106
+echo ""
107
+log_warn "Swapping display managers can prevent graphical login!"
108
+echo ""
109
+echo "BEFORE PROCEEDING, ensure you can:"
110
+echo "  1. Switch to a TTY (Ctrl+Alt+F2 through F6)"
111
+echo "  2. Log in via TTY as your user"
112
+echo "  3. Have root/sudo access from TTY"
113
+echo ""
114
+echo "ROLLBACK PROCEDURE (if gardm fails):"
115
+echo "  1. Switch to TTY: Ctrl+Alt+F2"
116
+echo "  2. Log in as your user"
117
+echo "  3. Run: sudo systemctl disable gardm"
118
+echo "  4. Run: sudo systemctl enable $CURRENT_DM"
119
+echo "  5. Reboot: sudo reboot"
120
+echo ""
121
+
122
+read -p "Have you tested gardm with test-gardm.sh? [y/N]: " tested
123
+if [ "$tested" != "y" ] && [ "$tested" != "Y" ]; then
124
+    log_warn "It's recommended to test gardm first!"
125
+    log_warn "Run: sudo ./test-gardm.sh"
126
+    echo ""
127
+    read -p "Continue anyway? [y/N]: " continue
128
+    if [ "$continue" != "y" ] && [ "$continue" != "Y" ]; then
129
+        log_info "Aborted. Please test gardm first."
130
+        exit 0
131
+    fi
132
+fi
133
+
134
+echo ""
135
+read -p "Ready to swap $CURRENT_DM -> gardm? [y/N]: " confirm
136
+if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
137
+    log_info "Aborted by user"
138
+    exit 0
139
+fi
140
+
141
+echo ""
142
+log_step "Disabling $CURRENT_DM..."
143
+systemctl disable "$CURRENT_DM"
144
+
145
+log_step "Enabling gardm..."
146
+systemctl enable gardm
147
+
148
+echo ""
149
+log_info "Display manager swap complete!"
150
+echo ""
151
+echo "============================================"
152
+echo "  NEXT STEPS"
153
+echo "============================================"
154
+echo ""
155
+echo "1. Reboot your system: sudo reboot"
156
+echo "2. gardm should start instead of $CURRENT_DM"
157
+echo ""
158
+echo "If gardm fails to start:"
159
+echo "  - Switch to TTY (Ctrl+Alt+F2)"
160
+echo "  - Run: sudo systemctl disable gardm"
161
+echo "  - Run: sudo systemctl enable $CURRENT_DM"
162
+echo "  - Run: sudo reboot"
163
+echo ""
164
+echo "To check gardm status after reboot:"
165
+echo "  systemctl status gardm"
166
+echo "  journalctl -u gardm -b"
167
+echo ""
168
+
169
+read -p "Reboot now? [y/N]: " reboot_now
170
+if [ "$reboot_now" = "y" ] || [ "$reboot_now" = "Y" ]; then
171
+    log_info "Rebooting..."
172
+    reboot
173
+fi
scripts/test-gardm.shadded
@@ -0,0 +1,87 @@ 
1
+#!/bin/bash
2
+# Test gardm without replacing your current display manager
3
+# This script runs gardm on a different VT/display for testing
4
+
5
+set -e
6
+
7
+RED='\033[0;31m'
8
+GREEN='\033[0;32m'
9
+YELLOW='\033[1;33m'
10
+NC='\033[0m'
11
+
12
+log_info() {
13
+    echo -e "${GREEN}[INFO]${NC} $1"
14
+}
15
+
16
+log_warn() {
17
+    echo -e "${YELLOW}[WARN]${NC} $1"
18
+}
19
+
20
+log_error() {
21
+    echo -e "${RED}[ERROR]${NC} $1"
22
+}
23
+
24
+# Check if running as root
25
+if [ "$EUID" -ne 0 ]; then
26
+    log_error "Please run as root (sudo ./test-gardm.sh)"
27
+    exit 1
28
+fi
29
+
30
+# Find an unused display
31
+find_unused_display() {
32
+    for i in {1..9}; do
33
+        if [ ! -e "/tmp/.X$i-lock" ] && [ ! -S "/tmp/.X11-unix/X$i" ]; then
34
+            echo ":$i"
35
+            return
36
+        fi
37
+    done
38
+    echo ":99"
39
+}
40
+
41
+# Find an unused VT (above the typical user range)
42
+find_unused_vt() {
43
+    for vt in {7..12}; do
44
+        if ! fuser "/dev/tty$vt" >/dev/null 2>&1; then
45
+            echo "$vt"
46
+            return
47
+        fi
48
+    done
49
+    echo "8"
50
+}
51
+
52
+DISPLAY_NUM=$(find_unused_display)
53
+VT_NUM=$(find_unused_vt)
54
+
55
+log_info "Testing gardm on display $DISPLAY_NUM, VT $VT_NUM"
56
+log_warn "Press Ctrl+C here (or switch back to your main VT) to stop the test"
57
+echo ""
58
+echo "To switch VTs:"
59
+echo "  - Ctrl+Alt+F1 through F7 (or F2-F8 depending on your setup)"
60
+echo "  - Your current session is likely on VT 1 or 2"
61
+echo ""
62
+echo "Press Enter to start test, or Ctrl+C to cancel..."
63
+read
64
+
65
+# Check if binaries exist
66
+if [ ! -x /usr/bin/gardmd ]; then
67
+    log_error "gardmd not installed. Run install.sh first."
68
+    exit 1
69
+fi
70
+
71
+if [ ! -x /usr/bin/gardm-greeter ]; then
72
+    log_error "gardm-greeter not installed. Run install.sh first."
73
+    exit 1
74
+fi
75
+
76
+# Check PAM config
77
+if [ ! -f /etc/pam.d/gardm ]; then
78
+    log_error "PAM config not installed. Run install.sh first."
79
+    exit 1
80
+fi
81
+
82
+log_info "Starting gardmd on display $DISPLAY_NUM, VT $VT_NUM..."
83
+log_info "You will be switched to VT $VT_NUM"
84
+
85
+# Run gardmd directly (not via systemd, for testing)
86
+# The daemon will start X on the specified display/VT
87
+exec /usr/bin/gardmd --display "$DISPLAY_NUM" --vt "$VT_NUM"