Reuse system properties for p2p

p2p interfaces keep increasing. Reuse a single "p2p" phrase to track all
p2p specific properties.

Longer term, we will remove the use of system properties for dhcp

Bug: 6522164
Change-Id: Ic9c54dc1904d2e1e8c33bbbc17234ed801f845dc

3 files changed, 43 insertions, 15 deletions

diff --git a/dhcpcd-hooks/20-dns.conf b/dhcpcd-hooks/20-dns.conf
index a92e91d..6165824 100644
--- a/dhcpcd-hooks/20-dns.conf
+++ b/dhcpcd-hooks/20-dns.conf
@@ -1,6 +1,13 @@
 # Set net.<iface>.dnsN properties that contain the
 # DNS server addresses given by the DHCP server.
 
+if [[ $interface == p2p* ]]
+    then
+    intf=p2p
+    else
+    intf=$interface
+fi
+
 set_dns_props()
 {
     case "${new_domain_name_servers}" in
@@ -9,12 +16,12 @@ set_dns_props()
 
     count=1
     for i in 1 2 3 4; do
-        setprop dhcp.${interface}.dns${i} ""
+        setprop dhcp.${intf}.dns${i} ""
     done
     
     count=1
     for dnsaddr in ${new_domain_name_servers}; do
-        setprop dhcp.${interface}.dns${count} ${dnsaddr}
+        setprop dhcp.${intf}.dns${count} ${dnsaddr}
         count=$(($count + 1))
     done
 }
@@ -22,7 +29,7 @@ set_dns_props()
 unset_dns_props()
 {
     for i in 1 2 3 4; do
-        setprop dhcp.${interface}.dns${i} ""
+        setprop dhcp.${intf}.dns${i} ""
     done
 }
 
diff --git a/dhcpcd-hooks/95-configured b/dhcpcd-hooks/95-configured
index d67236a..7f1b0ab 100644
--- a/dhcpcd-hooks/95-configured
+++ b/dhcpcd-hooks/95-configured
@@ -3,25 +3,32 @@
 # know that setting up the interface is complete.
 
 # For debugging:
-setprop dhcp.${interface}.reason "${reason}"
+
+if [[ $interface == p2p* ]]
+    then
+    intf=p2p
+    else
+    intf=$interface
+fi
+setprop dhcp.${intf}.reason "${reason}"
 
 case "${reason}" in
 BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT)
-    setprop dhcp.${interface}.ipaddress  "${new_ip_address}"
-    setprop dhcp.${interface}.gateway    "${new_routers%% *}"
-    setprop dhcp.${interface}.mask       "${new_subnet_mask}"
-    setprop dhcp.${interface}.leasetime  "${new_dhcp_lease_time}"
-    setprop dhcp.${interface}.server     "${new_dhcp_server_identifier}"
-    setprop dhcp.${interface}.vendorInfo "${new_vendor_encapsulated_options}"
+    setprop dhcp.${intf}.ipaddress  "${new_ip_address}"
+    setprop dhcp.${intf}.gateway    "${new_routers%% *}"
+    setprop dhcp.${intf}.mask       "${new_subnet_mask}"
+    setprop dhcp.${intf}.leasetime  "${new_dhcp_lease_time}"
+    setprop dhcp.${intf}.server     "${new_dhcp_server_identifier}"
+    setprop dhcp.${intf}.vendorInfo "${new_vendor_encapsulated_options}"
 
-    setprop dhcp.${interface}.result "ok"
+    setprop dhcp.${intf}.result "ok"
     ;;
 
 EXPIRE|FAIL|IPV4LL|STOP)
-    setprop dhcp.${interface}.result "failed"
+    setprop dhcp.${intf}.result "failed"
     ;;
 
 RELEASE)
-    setprop dhcp.${interface}.result "released"
+    setprop dhcp.${intf}.result "released"
     ;;
 esac
diff --git a/dhcpcd.c b/dhcpcd.c
index 15c087b..155c07b 100644
--- a/dhcpcd.c
+++ b/dhcpcd.c
@@ -1751,6 +1751,8 @@ main(int argc, char **argv)
 	struct timespec ts;
 
 #ifdef ANDROID
+	/* Reuse system properties for a p2p interface */
+	char p2p_interface[PROPERTY_KEY_MAX];
 	switchUser();
 #endif
 	closefrom(3);
@@ -1915,9 +1917,15 @@ main(int argc, char **argv)
 			exit(EXIT_FAILURE);
 		}
 
+		if (strncmp(argv[optind], "p2p", 3) == 0) {
+			strncpy(p2p_interface, "p2p", sizeof(p2p_interface));
+		} else {
+			strncpy(p2p_interface, argv[optind], sizeof(p2p_interface));
+		}
+
 		if (snprintf(pidpropname,
 			     sizeof(pidpropname),
-			     "dhcp.%s.pid", argv[optind]) >= PROPERTY_KEY_MAX)
+			     "dhcp.%s.pid", p2p_interface) >= PROPERTY_KEY_MAX)
 			exit(EXIT_FAILURE);
 		property_get(pidpropname, pidpropval, NULL);
 		if (strlen(pidpropval) == 0)
@@ -2000,9 +2008,15 @@ main(int argc, char **argv)
 			exit(EXIT_FAILURE);
 		}
 
+		if (strncmp(argv[optind], "p2p", 3) == 0) {
+			strncpy(p2p_interface, "p2p", sizeof(p2p_interface));
+		} else {
+			strncpy(p2p_interface, argv[optind], sizeof(p2p_interface));
+		}
+
 		if (snprintf(pidpropname,
 			     sizeof(pidpropname),
-			     "dhcp.%s.pid", argv[optind]) >= PROPERTY_KEY_MAX)
+			     "dhcp.%s.pid", p2p_interface) >= PROPERTY_KEY_MAX)
 			exit(EXIT_FAILURE);
 		if (snprintf(pidpropval, sizeof(pidpropval), "%d", getpid()) >= PROPERTY_VALUE_MAX)
 			exit(EXIT_FAILURE);