From: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue, 22 Jun 2021 14:49:29 +0000 (+0000)
Subject: pakfire: Lock the running kernel
X-Git-Tag: 0.9.28~1194
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7752c65bce34b8ff97e3c9263530bc2c4d61da1e;p=pakfire.git

pakfire: Lock the running kernel

This package cannot be removed

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/libpakfire/pakfire.c b/src/libpakfire/pakfire.c
index aca231700..32eee22e9 100644
--- a/src/libpakfire/pakfire.c
+++ b/src/libpakfire/pakfire.c
@@ -30,6 +30,7 @@
 #include <sys/stat.h>
 #include <sys/sysmacros.h>
 #include <sys/types.h>
+#include <sys/utsname.h>
 #include <syslog.h>
 #include <unistd.h>
 
@@ -405,6 +406,33 @@ static void pakfire_pool_add_multiinstall(Pool* pool) {
 	}
 }
 
+static void pakfire_lock_running_kernel(Pakfire pakfire, Pool* pool) {
+	struct utsname utsname;
+	char buffer[NAME_MAX];
+
+	// Nothing to do when not running on /
+	if (!pakfire_on_root(pakfire))
+		return;
+
+	// Call uname()
+	int r = uname(&utsname);
+	if (r) {
+		ERROR(pakfire, "uname() failed: %m\n");
+		return;
+	}
+
+	DEBUG(pakfire, "Locking running kernel %s\n", utsname.release);
+
+	r = pakfire_string_format(buffer, "kernel(%s)", utsname.release);
+	if (r < 0)
+		return;
+
+	// Add a locking pool job
+	Id id = pool_str2id(pool, buffer, 1);
+	if (id)
+		queue_push2(&pool->pooljobs, SOLVER_LOCK|SOLVER_SOLVABLE_PROVIDES, id);
+}
+
 static int pakfire_populate_pool(Pakfire pakfire) {
 	struct pakfire_db* db;
 	PakfireRepo repo = NULL;
@@ -435,6 +463,9 @@ static int pakfire_populate_pool(Pakfire pakfire) {
 	// Add multiinstall packages
 	pakfire_pool_add_multiinstall(pool);
 
+	// Lock the running kernel
+	pakfire_lock_running_kernel(pakfire, pool);
+
 	// Open database in read-only mode and try to load all installed packages
 	r = pakfire_db_open(&db, pakfire, PAKFIRE_DB_READWRITE);
 	if (r)