Add some more utility programs to util/.

4 files changed, 158 insertions, 0 deletions

diff --git a/util/.gitignore b/util/.gitignore
new file mode 100644
index 0000000..abd841a
--- /dev/null
+++ b/util/.gitignore
@@ -0,0 +1,5 @@
+evdump
+gnttest
+pipe2
+xsdump
+!Makefile
diff --git a/util/Makefile b/util/Makefile
new file mode 100644
index 0000000..4429a43
--- /dev/null
+++ b/util/Makefile
@@ -0,0 +1,11 @@
+TARGETS = pipe2 gnttest evdump xsdump
+
+CFLAGS = -Wall -I../src
+LDLIBS := -lxenctrl -lxenstore -ludev
+
+.PHONY: all clean
+
+all: $(TARGETS)
+
+clean:
+	$(RM) $(TARGETS) *.o
diff --git a/util/gnttest.c b/util/gnttest.c
new file mode 100644
index 0000000..b8dea2f
--- /dev/null
+++ b/util/gnttest.c
@@ -0,0 +1,58 @@
+#include <stdarg.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <sys/mman.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+#include <xs.h>
+#include <xenctrl.h>
+#include <xen/event_channel.h>
+#include <xen/io/xenbus.h>
+#include <xen/io/fbif.h>
+#include <xen/io/kbdif.h>
+#include <xen/io/protocols.h>
+
+static void
+bail(const char *msg)
+{
+	fprintf(stderr, "%s\n", msg);
+	exit(1);
+}
+
+int
+main(int argc, char **argv)
+{
+	xc_interface *xc;
+	xc_gnttab *gntdev;
+	int dom;
+	grant_ref_t ref;
+	unsigned char *page;
+
+	if (argc != 3)
+		bail("Usage: gnttest <domid> <grant-ref>");
+
+	dom = atoi(argv[1]);
+	ref = atoi(argv[2]);
+
+	xc = xc_interface_open(0,0,0);
+	if (!xc)
+		bail("Failed to open xc");
+
+	gntdev = xc_gnttab_open(NULL, 0);
+	if (gntdev < 0)
+		bail("Failed to open gntdev");
+
+	page = xc_gnttab_map_grant_ref(gntdev, dom, ref, PROT_READ);
+	write(1, page, 4096);
+
+	xc_gnttab_munmap(gntdev, page, 1);
+	xc_gnttab_close(gntdev);
+	xc_interface_close(xc);
+	return 0;
+}
diff --git a/util/pipe2.c b/util/pipe2.c
new file mode 100644
index 0000000..26d145d
--- /dev/null
+++ b/util/pipe2.c
@@ -0,0 +1,84 @@
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static void
+bail(const char *msg)
+{
+	fprintf(stderr, "%s\n", msg);
+	exit(1);
+}
+
+int
+main(int argc, char *const argv[], char *const envp[])
+{
+	int p1[2], p2[2];
+	char *a1[4], *a2[4];
+	char prog[] = "/usr/lib64/xen/bin/xenconsole";
+	pid_t pid, c1, c2;
+	int status;
+
+	if (argc != 3)
+		bail("Usage: pipe2 <guest1> <guest2>");
+
+	a1[0] = prog;
+	//a1[1] = "console";
+	a1[1] = argv[1];
+	a1[2] = NULL;
+
+	a2[0] = prog;
+	//a2[1] = "console";
+	a2[1] = argv[2];
+	a2[2] = NULL;
+
+	if (pipe(p1) < 0)
+		bail("pipe() call failed!");
+	if (pipe(p2) < 0)
+		bail("pipe() call failed!");
+
+	c1 = fork();
+	if (c1 == 0) {
+		close(0);
+		close(1);
+		close(2);
+		close(p1[1]);
+		close(p2[0]);
+
+		dup2(p1[0], 0);
+		dup2(p2[1], 1);
+		dup2(p2[1], 2);
+
+		close(p2[1]);
+		close(p1[0]);
+
+		execve(prog, a1, envp);
+	}
+
+	c2 = fork();
+	if (c2 == 0) {
+		close(0);
+		close(1);
+		close(2);
+		close(p2[1]);
+		close(p1[0]);
+
+		dup2(p2[0], 0);
+		dup2(p1[1], 1);
+		dup2(p1[1], 2);
+
+		close(p1[1]);
+		close(p2[0]);
+
+		execve(prog, a2, envp);
+	}
+
+	pid = waitpid(-1, &status, 0);
+	fprintf(stderr, "%d exit %d\n", pid, status);
+	pid = waitpid(-1, &status, 0);
+	fprintf(stderr, "%d exit %d\n", pid, status);
+
+	return 0;
+}