Add FMD fault inventory to sled-agent API

Exposes illumos Fault Management Daemon (FMD) data through the
sled-agent inventory endpoint. This lets the control plane see
diagnosed hardware/software faults on each sled.

New API version 35 adds an `fmd: Option<FmdInventory>` field to
`Inventory`. When present, it contains:
- Cases: diagnosed faults with UUID, diagnostic code, URL, and the
  full event nvlist serialized as JSON
- Resources: affected components with FMRI, fault status flags

On illumos, sled-agent queries FMD on each inventory request. On
non-illumos (sim, tests), the field is None. Database storage is
not included — that's a follow-up.

Author: smklein

Cargo.lock

@@ -504,6 +504,8 @@ filetime = "0.2.26"
 flate2 = "1.1.2"
 float-ord = "0.3.2"
 flume = "0.11.1"
+fmd-adm = { git = "https://github.com/oxidecomputer/fmd-adm", rev = "fffb52212fb1e073e9f1b16761b3614af8b38063" }
+fmd-adm-sys = { git = "https://github.com/oxidecomputer/fmd-adm", rev = "fffb52212fb1e073e9f1b16761b3614af8b38063" }
 foreign-types = "0.3.2"
 fs-err = "3.1.1"
 futures = "0.3.31"

Cargo.toml

@@ -60,6 +60,9 @@ progenitor::generate_api!(
         ExternalIpConfig = omicron_common::api::internal::shared::ExternalIpConfig,
         ExternalIpv4Config = omicron_common::api::internal::shared::ExternalIpv4Config,
         ExternalIpv6Config = omicron_common::api::internal::shared::ExternalIpv6Config,
+        FmdCase = sled_agent_types_versions::latest::inventory::FmdCase,
+        FmdInventory = sled_agent_types_versions::latest::inventory::FmdInventory,
+        FmdResource = sled_agent_types_versions::latest::inventory::FmdResource,
         Generation = omicron_common::api::external::Generation,
         Hostname = omicron_common::api::external::Hostname,
         ImportExportPolicy = sled_agent_types_versions::latest::early_networking::ImportExportPolicy,

clients/sled-agent-client/src/lib.rs

@@ -3,10 +3,14 @@ name = "end-to-end-tests"
 version = "0.1.0"
 edition.workspace = true
 license = "MPL-2.0"
+build = "build.rs"
 
 [lints]
 workspace = true
 
+[build-dependencies]
+omicron-rpaths.workspace = true
+
 [dependencies]
 anstyle.workspace = true
 anyhow = { workspace = true, features = ["backtrace"] }
@@ -50,3 +54,7 @@ thiserror.workspace = true
 tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
 toml.workspace = true
 uuid.workspace = true
+
+[target.'cfg(target_os = "illumos")'.dependencies]
+# See omicron-rpaths for more about the "fmd-adm-sys" dependency.
+fmd-adm-sys.workspace = true

end-to-end-tests/Cargo.toml

@@ -0,0 +1,10 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+// See omicron-rpaths for documentation.
+// NOTE: This file MUST be kept in sync with the other build.rs files in this
+// repository.
+fn main() {
+    omicron_rpaths::configure_default_omicron_rpaths();
+}

end-to-end-tests/build.rs

@@ -164,6 +164,10 @@ omicron-workspace-hack.workspace = true
 omicron-uuid-kinds.workspace = true
 zip = { workspace = true, features = ["jiff-02"] }
 
+[target.'cfg(target_os = "illumos")'.dependencies]
+# See omicron-rpaths for more about the "fmd-adm-sys" dependency.
+fmd-adm-sys.workspace = true
+
 [dev-dependencies]
 async-bb8-diesel.workspace = true
 camino-tempfile.workspace = true

nexus/Cargo.toml

@@ -84,6 +84,10 @@ omicron-workspace-hack.workspace = true
 # only enabled during tests or via the `testing` feature
 omicron-test-utils = { workspace = true, optional = true }
 
+[target.'cfg(target_os = "illumos")'.dependencies]
+# See omicron-rpaths for more about the "fmd-adm-sys" dependency.
+fmd-adm-sys.workspace = true
+
 [features]
 # Enable to export `TestDatabase`
 testing = ["omicron-test-utils"]

nexus/db-queries/Cargo.toml

@@ -711,6 +711,7 @@ mod test {
                     smf_services_enabled_not_online:
                         SvcsEnabledNotOnlineResult::DataUnavailable,
                     reference_measurements: IdOrdMap::new(),
+                    fmd: None,
                 },
             )
             .unwrap();

nexus/db-queries/src/db/datastore/physical_disk.rs

@@ -3,10 +3,14 @@ name = "nexus-inventory"
 version = "0.1.0"
 edition.workspace = true
 license = "MPL-2.0"
+build = "build.rs"
 
 [lints]
 workspace = true
 
+[build-dependencies]
+omicron-rpaths.workspace = true
+
 [dependencies]
 anyhow.workspace = true
 base64.workspace = true
@@ -46,6 +50,10 @@ uuid.workspace = true
 omicron-cockroach-metrics.workspace = true
 omicron-workspace-hack.workspace = true
 
+[target.'cfg(target_os = "illumos")'.dependencies]
+# See omicron-rpaths for more about the "fmd-adm-sys" dependency.
+fmd-adm-sys.workspace = true
+
 [dev-dependencies]
 expectorate.workspace = true
 gateway-test-utils.workspace = true

nexus/inventory/Cargo.toml

@@ -0,0 +1,10 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+// See omicron-rpaths for documentation.
+// NOTE: This file MUST be kept in sync with the other build.rs files in this
+// repository.
+fn main() {
+    omicron_rpaths::configure_default_omicron_rpaths();
+}