pppd: add patches for gcc14 compilation

package/all-patches/pppd/0002-fix-npmode-enum.patch

@@ -0,0 +1,25 @@
+diff --git a/pppd/sys-linux.c b/pppd/sys-linux.c
+index b497231..7512fcb 100644
+--- a/pppd/sys-linux.c
++++ b/pppd/sys-linux.c
+@@ -126,6 +126,7 @@
+ #include <netinet/in.h>
+ #include <arpa/inet.h>
+
++#include <linux/ppp_defs.h>
+ #include <linux/ppp-ioctl.h>
+
+ #include <linux/netlink.h>
+
+diff --git a/pppd/plugins/pppol2tp/pppol2tp.c b/pppd/plugins/pppol2tp/pppol2tp.c
+index 3b9737e..4660b63 100644
+--- a/pppd/plugins/pppol2tp/pppol2tp.c
++++ b/pppd/plugins/pppol2tp/pppol2tp.c
+@@ -38,6 +38,7 @@
+
+ #include <linux/version.h>
+ #include <linux/sockios.h>
++#include <linux/ppp_defs.h>
+ #include <linux/ppp-ioctl.h>
+
+ #ifndef aligned_u64

package/all-patches/pppd/0003-fix-gcc14-build.patch

@@ -0,0 +1,43 @@
+commit ac269dbf7c142371cd975c775c6171707ac4dde8
+Author: nasbdh9 <[email protected]>
+Date:   Tue Oct 15 10:53:48 2024 +0800
+
+    pppd/crypto: Fix gcc 14 build (#524)
+
+    Fix this:
+
+    crypto.c: In function 'PPP_crypto_error':
+    crypto.c:178:11: error: implicit declaration of function 'vsnprintf' [-Wimplicit-function-declaration]
+      178 |     off = vsnprintf(buf, len, fmt, args);
+          |           ^~~~~~~~~
+    crypto.c:41:1: note: include '<stdio.h>' or provide a declaration of 'vsnprintf'
+       40 | #include "crypto-priv.h"
+      +++ |+#include <stdio.h>
+       41 |
+    crypto.c:178:26: warning: 'vsnprintf' argument 2 type is 'int' where 'long unsigned int' is expected in a call to built-in function declared without prototype [-Wbuiltin-declaration-mismatch]
+      178 |     off = vsnprintf(buf, len, fmt, args);
+          |                          ^~~
+    <built-in>: note: built-in 'vsnprintf' declared here
+
+    Signed-off-by: Tan Zien <[email protected]>
+
+diff --git a/pppd/crypto.c b/pppd/crypto.c
+index 054ee13..3576afd 100644
+--- a/pppd/crypto.c
++++ b/pppd/crypto.c
+@@ -34,6 +34,7 @@
+
+ #include <stdlib.h>
+ #include <string.h>
++#include <stdio.h>
+
+ #include "pppd.h"
+ #include "crypto.h"
+@@ -243,7 +244,6 @@ int PPP_crypto_deinit()
+ }
+
+ #ifdef UNIT_TEST
+-#include <stdio.h>
+
+ int debug;
+ int error_count;

package/all-patches/pppd/0004-fix-build-without-openssl.patch

@@ -0,0 +1,66 @@
+commit 5f6eabdb6666d914e0f8feb3facfa591dee75a1f
+Author: Tomas Paukrt <[email protected]>
+Date:   Thu Nov 21 03:53:28 2024 +0100
+
+    pppd: Fix build without OpenSSL (#533)
+
+    The symbol OPENSSL_VERSION_NUMBER is not defined when pppd is
+    compiled without OpenSSL support, so it evaluates to zero.
+    This results in the following linker error:
+
+    crypto.c:241: undefined reference to `ERR_free_strings'
+
+    Signed-off-by: Tomas Paukrt <[email protected]>
+
+diff --git a/pppd/crypto.c b/pppd/crypto.c
+index 3576afd..8e98261 100644
+--- a/pppd/crypto.c
++++ b/pppd/crypto.c
+@@ -43,7 +43,6 @@
+ #ifdef PPP_WITH_OPENSSL
+ #include <openssl/opensslv.h>
+ #include <openssl/err.h>
+-#endif
+
+ #if OPENSSL_VERSION_NUMBER >= 0x30000000L
+ #include <openssl/provider.h>
+@@ -53,6 +52,7 @@ struct crypto_ctx {
+     OSSL_PROVIDER *provider;
+ } g_crypto_ctx;
+ #endif
++#endif
+
+ PPP_MD_CTX *PPP_MD_CTX_new()
+ {
+@@ -200,6 +200,7 @@ int PPP_crypto_init()
+ {
+     int retval = 0;
+
++#ifdef PPP_WITH_OPENSSL
+ #if OPENSSL_VERSION_NUMBER >= 0x30000000L
+     g_crypto_ctx.legacy = OSSL_PROVIDER_load(NULL, "legacy");
+     if (g_crypto_ctx.legacy == NULL)
+@@ -214,6 +215,7 @@ int PPP_crypto_init()
+         PPP_crypto_error("Could not load default provider");
+         goto done;
+     }
++#endif
+ #endif
+
+     retval = 1;
+@@ -225,6 +227,7 @@ done:
+
+ int PPP_crypto_deinit()
+ {
++#ifdef PPP_WITH_OPENSSL
+ #if OPENSSL_VERSION_NUMBER >= 0x30000000L
+     if (g_crypto_ctx.legacy) {
+         OSSL_PROVIDER_unload(g_crypto_ctx.legacy);
+@@ -239,6 +242,7 @@ int PPP_crypto_deinit()
+
+ #if OPENSSL_VERSION_NUMBER < 0x10100000L
+     ERR_free_strings();
++#endif
+ #endif
+     return 1;
+ }