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January

LeOS-U
harvey186 2024-01-10 16:01:06 +01:00
parent 21945b75e0
commit 99b545bc28
11 changed files with 0 additions and 2190 deletions
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639
patches/leos/platform_bionic/0002-Hosts_Cache.patch
View File

@ -1,639 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tom Marshall <tdm@cyngn.com>
Date: Fri, 17 Jun 2016 16:38:12 -0700
Subject: [PATCH] bionic: Sort and cache hosts file data for fast lookup
The hosts file is normally searched linearly. This is very slow when
the file is large. To mitigate this, read the hosts file and sort the
entries in an in-memory cache. When an address is requested via
gethostbyname or getaddrinfo, binary search the cache.
In case where the cache is not available, return a suitable error code
and fall back to the existing lookup code.
This has been written to behave as much like the existing lookup code as
possible. But note bionic and glibc differ in behavior for some corner
cases. Choose the most standard compliant behavior for these where
possible. Otherwise choose the behavior that seems most reasonable.
RM-290
Change-Id: I3b322883cbc48b0d76a0ce9d149b59faaac1dc58
(cherry picked from commit ed4c3a6bd449a4ed70645071a440ae146f194116)
---
libc/dns/net/getaddrinfo.c | 10 +
libc/dns/net/hosts_cache.c | 520 +++++++++++++++++++++++++++++++++++++
libc/dns/net/hosts_cache.h | 23 ++
libc/dns/net/sethostent.c | 7 +
4 files changed, 560 insertions(+)
create mode 100644 libc/dns/net/hosts_cache.c
create mode 100644 libc/dns/net/hosts_cache.h
diff --git a/libc/dns/net/getaddrinfo.c b/libc/dns/net/getaddrinfo.c
index d0c11d2b0..cc94b21e2 100644
--- a/libc/dns/net/getaddrinfo.c
+++ b/libc/dns/net/getaddrinfo.c
@@ -109,6 +109,8 @@
#include "nsswitch.h"
#include "private/bionic_defs.h"
+#include "hosts_cache.h"
+
typedef union sockaddr_union {
struct sockaddr generic;
struct sockaddr_in in;
@@ -2125,6 +2127,14 @@ _files_getaddrinfo(void *rv, void *cb_data, va_list ap)
name = va_arg(ap, char *);
pai = va_arg(ap, struct addrinfo *);
+ memset(&sentinel, 0, sizeof(sentinel));
+ cur = &sentinel;
+ int gai_error = hc_getaddrinfo(name, NULL, pai, &cur);
+ if (gai_error != EAI_SYSTEM) {
+ *((struct addrinfo **)rv) = sentinel.ai_next;
+ return (gai_error == 0 ? NS_SUCCESS : NS_NOTFOUND);
+ }
+
// fprintf(stderr, "_files_getaddrinfo() name = '%s'\n", name);
memset(&sentinel, 0, sizeof(sentinel));
cur = &sentinel;
diff --git a/libc/dns/net/hosts_cache.c b/libc/dns/net/hosts_cache.c
new file mode 100644
index 000000000..52d29e032
--- /dev/null
+++ b/libc/dns/net/hosts_cache.c
@@ -0,0 +1,520 @@
+/*
+ * Copyright (C) 2016 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <fcntl.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <strings.h>
+#include <sys/file.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <utime.h>
+#include <pthread.h>
+
+#include <netinet/in6.h>
+#include <arpa/inet.h>
+
+#include "hostent.h"
+#include "resolv_private.h"
+
+#define MAX_ADDRLEN (INET6_ADDRSTRLEN - (1 + 5))
+#define MAX_HOSTLEN MAXHOSTNAMELEN
+
+#define ESTIMATED_LINELEN 32
+#define HCFILE_ALLOC_SIZE 256
+
+/*
+ * Host cache entry for hcfile.c_data.
+ * Offsets are into hcfile.h_data.
+ * Strings are *not* terminated by NULL, but by whitespace (isspace) or '#'.
+ * Use hstr* functions with these.
+ */
+struct hcent
+{
+ uint32_t addr;
+ uint32_t name;
+};
+
+/*
+ * Overall host cache file state.
+ */
+struct hcfile
+{
+ int h_fd;
+ struct stat h_st;
+ char *h_data;
+
+ uint32_t c_alloc;
+ uint32_t c_len;
+ struct hcent *c_data;
+};
+static struct hcfile hcfile;
+static pthread_mutex_t hclock = PTHREAD_MUTEX_INITIALIZER;
+
+static size_t hstrlen(const char *s)
+{
+ const char *p = s;
+ while (*p && *p != '#' && !isspace(*p))
+ ++p;
+ return p - s;
+}
+
+static int hstrcmp(const char *a, const char *b)
+{
+ size_t alen = hstrlen(a);
+ size_t blen = hstrlen(b);
+ int res = strncmp(a, b, MIN(alen, blen));
+ if (res == 0)
+ res = alen - blen;
+ return res;
+}
+
+static char *hstrcpy(char *dest, const char *src)
+{
+ size_t len = hstrlen(src);
+ memcpy(dest, src, len);
+ dest[len] = '\0';
+ return dest;
+}
+
+static char *hstrdup(const char *s)
+{
+ size_t len = hstrlen(s);
+ char *dest = (char *)malloc(len + 1);
+ if (!dest)
+ return NULL;
+ memcpy(dest, s, len);
+ dest[len] = '\0';
+ return dest;
+}
+
+static int cmp_hcent_name(const void *a, const void *b)
+{
+ struct hcent *ea = (struct hcent *)a;
+ const char *na = hcfile.h_data + ea->name;
+ struct hcent *eb = (struct hcent *)b;
+ const char *nb = hcfile.h_data + eb->name;
+
+ return hstrcmp(na, nb);
+}
+
+static struct hcent *_hcfindname(const char *name)
+{
+ size_t first, last, mid;
+ struct hcent *cur = NULL;
+ int cmp;
+
+ if (hcfile.c_len == 0)
+ return NULL;
+
+ first = 0;
+ last = hcfile.c_len - 1;
+ mid = (first + last) / 2;
+ while (first <= last) {
+ cur = hcfile.c_data + mid;
+ cmp = hstrcmp(hcfile.h_data + cur->name, name);
+ if (cmp == 0)
+ goto found;
+ if (cmp < 0)
+ first = mid + 1;
+ else {
+ if (mid > 0)
+ last = mid - 1;
+ else
+ return NULL;
+ }
+ mid = (first + last) / 2;
+ }
+ return NULL;
+
+found:
+ while (cur > hcfile.c_data) {
+ struct hcent *prev = cur - 1;
+ cmp = cmp_hcent_name(cur, prev);
+ if (cmp)
+ break;
+ cur = prev;
+ }
+
+ return cur;
+}
+
+/*
+ * Find next name on line, if any.
+ *
+ * Assumes that line is terminated by LF.
+ */
+static const char *_hcnextname(const char *name)
+{
+ while (!isspace(*name)) {
+ if (*name == '#')
+ return NULL;
+ ++name;
+ }
+ while (isspace(*name)) {
+ if (*name == '\n')
+ return NULL;
+ ++name;
+ }
+ if (*name == '#')
+ return NULL;
+ return name;
+}
+
+static int _hcfilemmap(void)
+{
+ struct stat st;
+ int h_fd;
+ char *h_addr;
+ const char *p, *pend;
+ uint32_t c_alloc;
+
+ h_fd = open(_PATH_HOSTS, O_RDONLY);
+ if (h_fd < 0)
+ return -1;
+ if (flock(h_fd, LOCK_EX) != 0) {
+ close(h_fd);
+ return -1;
+ }
+
+ if (hcfile.h_data) {
+ memset(&st, 0, sizeof(st));
+ if (fstat(h_fd, &st) == 0) {
+ if (st.st_size == hcfile.h_st.st_size &&
+ st.st_mtime == hcfile.h_st.st_mtime) {
+ flock(h_fd, LOCK_UN);
+ close(h_fd);
+ return 0;
+ }
+ }
+ free(hcfile.c_data);
+ munmap(hcfile.h_data, hcfile.h_st.st_size);
+ close(hcfile.h_fd);
+ memset(&hcfile, 0, sizeof(struct hcfile));
+ }
+
+ if (fstat(h_fd, &st) != 0) {
+ flock(h_fd, LOCK_UN);
+ close(h_fd);
+ return -1;
+ }
+ h_addr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, h_fd, 0);
+ if (h_addr == MAP_FAILED) {
+ flock(h_fd, LOCK_UN);
+ close(h_fd);
+ return -1;
+ }
+
+ hcfile.h_fd = h_fd;
+ hcfile.h_st = st;
+ hcfile.h_data = h_addr;
+
+ c_alloc = 0;
+ /*
+ * Do an initial allocation if the file is "large". Estimate
+ * 32 bytes per line and define "large" as more than half of
+ * the alloc growth size (256 entries).
+ */
+ if (st.st_size >= ESTIMATED_LINELEN * HCFILE_ALLOC_SIZE / 2) {
+ c_alloc = st.st_size / ESTIMATED_LINELEN;
+ hcfile.c_data = malloc(c_alloc * sizeof(struct hcent));
+ if (!hcfile.c_data) {
+ goto oom;
+ }
+ }
+
+ p = (const char *)h_addr;
+ pend = p + st.st_size;
+ while (p < pend) {
+ const char *eol, *addr, *name;
+ size_t len;
+ addr = p;
+ eol = memchr(p, '\n', pend - p);
+ if (!eol)
+ break;
+ p = eol + 1;
+ if (*addr == '#' || *addr == '\n')
+ continue;
+ len = hstrlen(addr);
+ if (len > MAX_ADDRLEN)
+ continue;
+ name = addr + len;
+ while (name < eol && isspace(*name))
+ ++name;
+ while (name < eol) {
+ len = hstrlen(name);
+ if (len == 0)
+ break;
+ if (len < MAX_HOSTLEN) {
+ struct hcent *ent;
+ if (c_alloc <= hcfile.c_len) {
+ struct hcent *c_data;
+ c_alloc += HCFILE_ALLOC_SIZE;
+ c_data = realloc(hcfile.c_data, c_alloc * sizeof(struct hcent));
+ if (!c_data) {
+ goto oom;
+ }
+ hcfile.c_data = c_data;
+ }
+ ent = hcfile.c_data + hcfile.c_len;
+ ent->addr = addr - h_addr;
+ ent->name = name - h_addr;
+ ++hcfile.c_len;
+ }
+ name += len;
+ while (name < eol && isspace(*name))
+ ++name;
+ }
+ }
+
+ qsort(hcfile.c_data, hcfile.c_len,
+ sizeof(struct hcent), cmp_hcent_name);
+
+ flock(h_fd, LOCK_UN);
+
+ return 0;
+
+oom:
+ free(hcfile.c_data);
+ munmap(hcfile.h_data, hcfile.h_st.st_size);
+ flock(hcfile.h_fd, LOCK_UN);
+ close(hcfile.h_fd);
+ memset(&hcfile, 0, sizeof(struct hcfile));
+ return -1;
+}
+
+/*
+ * Caching version of getaddrinfo.
+ *
+ * If we find the requested host name in the cache, use getaddrinfo to
+ * populate the result for each address we find.
+ *
+ * Note glibc and bionic differ in the handling of ai_canonname. POSIX
+ * says that ai_canonname is only populated in the first result entry.
+ * glibc does this. bionic populates ai_canonname in all result entries.
+ * We choose the POSIX/glibc way here.
+ */
+int hc_getaddrinfo(const char *host, const char *service,
+ const struct addrinfo *hints,
+ struct addrinfo **result)
+{
+ int ret = 0;
+ struct hcent *ent, *cur;
+ struct addrinfo *ai;
+ struct addrinfo rhints;
+ struct addrinfo *last;
+ int canonname = 0;
+ int cmp;
+
+ if (getenv("ANDROID_HOSTS_CACHE_DISABLE") != NULL)
+ return EAI_SYSTEM;
+
+ /* Avoid needless work and recursion */
+ if (hints && (hints->ai_flags & AI_NUMERICHOST))
+ return EAI_SYSTEM;
+ if (!host)
+ return EAI_SYSTEM;
+
+ pthread_mutex_lock(&hclock);
+
+ if (_hcfilemmap() != 0) {
+ ret = EAI_SYSTEM;
+ goto out;
+ }
+ ent = _hcfindname(host);
+ if (!ent) {
+ ret = EAI_NONAME;
+ goto out;
+ }
+
+ if (hints) {
+ canonname = (hints->ai_flags & AI_CANONNAME);
+ memcpy(&rhints, hints, sizeof(rhints));
+ rhints.ai_flags &= ~AI_CANONNAME;
+ }
+ else {
+ memset(&rhints, 0, sizeof(rhints));
+ }
+ rhints.ai_flags |= AI_NUMERICHOST;
+
+ last = NULL;
+ cur = ent;
+ do {
+ char addrstr[MAX_ADDRLEN];
+ struct addrinfo *res;
+
+ hstrcpy(addrstr, hcfile.h_data + cur->addr);
+
+ if (getaddrinfo(addrstr, service, &rhints, &res) == 0) {
+ if (!last)
+ (*result)->ai_next = res;
+ else
+ last->ai_next = res;
+ last = res;
+ while (last->ai_next)
+ last = last->ai_next;
+ }
+
+ if(cur + 1 >= hcfile.c_data + hcfile.c_len)
+ break;
+ cmp = cmp_hcent_name(cur, cur + 1);
+ cur = cur + 1;
+ }
+ while (!cmp);
+
+ if (last == NULL) {
+ /* This check is equivalent to (*result)->ai_next == NULL */
+ ret = EAI_NODATA;
+ goto out;
+ }
+
+ if (canonname) {
+ ai = (*result)->ai_next;
+ free(ai->ai_canonname);
+ ai->ai_canonname = hstrdup(hcfile.h_data + ent->name);
+ }
+
+out:
+ pthread_mutex_unlock(&hclock);
+ return ret;
+}
+
+/*
+ * Caching version of gethtbyname.
+ *
+ * Note glibc and bionic differ in the handling of aliases. glibc returns
+ * all aliases for all entries, regardless of whether they match h_addrtype.
+ * bionic returns only the aliases for the first hosts entry. We return all
+ * aliases for all IPv4 entries.
+ *
+ * Additionally, if an alias is IPv6 and the primary name for an alias also
+ * has an IPv4 entry, glibc will return the IPv4 address(es), but bionic
+ * will not. Neither do we.
+ */
+int hc_gethtbyname(const char *host, int af, struct getnamaddr *info)
+{
+ int ret = NETDB_SUCCESS;
+ struct hcent *ent, *cur;
+ int cmp;
+ size_t addrlen;
+ unsigned int naliases = 0;
+ char *aliases[MAXALIASES];
+ unsigned int naddrs = 0;
+ char *addr_ptrs[MAXADDRS];
+ unsigned int n;
+
+ if (getenv("ANDROID_HOSTS_CACHE_DISABLE") != NULL)
+ return NETDB_INTERNAL;
+
+ switch (af) {
+ case AF_INET: addrlen = NS_INADDRSZ; break;
+ case AF_INET6: addrlen = NS_IN6ADDRSZ; break;
+ default:
+ return NETDB_INTERNAL;
+ }
+
+ pthread_mutex_lock(&hclock);
+
+ if (_hcfilemmap() != 0) {
+ ret = NETDB_INTERNAL;
+ goto out;
+ }
+
+ ent = _hcfindname(host);
+ if (!ent) {
+ ret = HOST_NOT_FOUND;
+ goto out;
+ }
+
+ cur = ent;
+ do {
+ char addr[16];
+ char addrstr[MAX_ADDRLEN];
+ char namestr[MAX_HOSTLEN];
+ const char *name;
+
+ hstrcpy(addrstr, hcfile.h_data + cur->addr);
+ if (inet_pton(af, addrstr, &addr) == 1) {
+ char *aligned;
+ /* First match is considered the official hostname */
+ if (naddrs == 0) {
+ hstrcpy(namestr, hcfile.h_data + cur->name);
+ HENT_SCOPY(info->hp->h_name, namestr, info->buf, info->buflen);
+ }
+ for (name = hcfile.h_data + cur->name; name; name = _hcnextname(name)) {
+ if (!hstrcmp(name, host))
+ continue;
+ hstrcpy(namestr, name);
+ HENT_SCOPY(aliases[naliases], namestr, info->buf, info->buflen);
+ ++naliases;
+ if (naliases >= MAXALIASES)
+ goto nospc;
+ }
+ aligned = (char *)ALIGN(info->buf);
+ if (info->buf != aligned) {
+ if ((ptrdiff_t)info->buflen < (aligned - info->buf))
+ goto nospc;
+ info->buflen -= (aligned - info->buf);
+ info->buf = aligned;
+ }
+ HENT_COPY(addr_ptrs[naddrs], addr, addrlen, info->buf, info->buflen);
+ ++naddrs;
+ if (naddrs >= MAXADDRS)
+ goto nospc;
+ }
+
+ if(cur + 1 >= hcfile.c_data + hcfile.c_len)
+ break;
+ cmp = cmp_hcent_name(cur, cur + 1);
+ cur = cur + 1;
+ }
+ while (!cmp);
+
+ if (naddrs == 0) {
+ ret = HOST_NOT_FOUND;
+ goto out;
+ }
+
+ addr_ptrs[naddrs++] = NULL;
+ aliases[naliases++] = NULL;
+
+ /* hp->h_name already populated */
+ HENT_ARRAY(info->hp->h_aliases, naliases, info->buf, info->buflen);
+ for (n = 0; n < naliases; ++n) {
+ info->hp->h_aliases[n] = aliases[n];
+ }
+ info->hp->h_addrtype = af;
+ info->hp->h_length = addrlen;
+ HENT_ARRAY(info->hp->h_addr_list, naddrs, info->buf, info->buflen);
+ for (n = 0; n < naddrs; ++n) {
+ info->hp->h_addr_list[n] = addr_ptrs[n];
+ }
+
+out:
+ pthread_mutex_unlock(&hclock);
+ *info->he = ret;
+ return ret;
+
+nospc:
+ ret = NETDB_INTERNAL;
+ goto out;
+}
diff --git a/libc/dns/net/hosts_cache.h b/libc/dns/net/hosts_cache.h
new file mode 100644
index 000000000..fa5488f51
--- /dev/null
+++ b/libc/dns/net/hosts_cache.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2016 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+struct getnamaddr;
+
+int hc_getaddrinfo(const char *host, const char *service,
+ const struct addrinfo *hints,
+ struct addrinfo **result);
+
+int hc_gethtbyname(const char *host, int af, struct getnamaddr *info);
diff --git a/libc/dns/net/sethostent.c b/libc/dns/net/sethostent.c
index 483105a95..1399378cd 100644
--- a/libc/dns/net/sethostent.c
+++ b/libc/dns/net/sethostent.c
@@ -55,6 +55,8 @@ __RCSID("$NetBSD: sethostent.c,v 1.20 2014/03/17 13:24:23 christos Exp $");
#include "hostent.h"
#include "resolv_private.h"
+#include "hosts_cache.h"
+
#ifndef _REENTRANT
void res_close(void);
#endif
@@ -109,6 +111,11 @@ _hf_gethtbyname(void *rv, void *cb_data, va_list ap)
/* NOSTRICT skip string len */(void)va_arg(ap, int);
af = va_arg(ap, int);
+ int rc = hc_gethtbyname(name, af, info);
+ if (rc != NETDB_INTERNAL) {
+ return (rc == NETDB_SUCCESS ? NS_SUCCESS : NS_NOTFOUND);
+ }
+
#if 0
{
res_state res = __res_get_state();

69
patches/leos/platform_bionic/0003-Hosts_Wildcards.patch
View File

@ -1,69 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tom Marshall <tdm.code@gmail.com>
Date: Thu, 16 Jan 2020 13:07:04 -0800
Subject: [PATCH] bionic: Support wildcards in cached hosts file
If an exact name is not found in the hosts file and the host name
contains at least one dot, search for entries of the form "*.domain",
where domain is the portion of the host name after the first dot. If
that is not found, repeat using the domain.
Example: a.b.c.example.com would search for the following in turn:
a.b.c.example.com
*.b.c.example.com
*.c.example.com
*.example.com
*.com
Change-Id: I4b0bb81699151d5b371850daebf785e35ec9b180
---
libc/dns/net/hosts_cache.c | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/libc/dns/net/hosts_cache.c b/libc/dns/net/hosts_cache.c
index 52d29e032..fc6370d0c 100644
--- a/libc/dns/net/hosts_cache.c
+++ b/libc/dns/net/hosts_cache.c
@@ -117,7 +117,7 @@ static int cmp_hcent_name(const void *a, const void *b)
return hstrcmp(na, nb);
}
-static struct hcent *_hcfindname(const char *name)
+static struct hcent *_hcfindname_exact(const char *name)
{
size_t first, last, mid;
struct hcent *cur = NULL;
@@ -158,6 +158,33 @@ found:
return cur;
}
+static struct hcent *_hcfindname(const char *name)
+{
+ struct hcent *ent;
+ char namebuf[MAX_HOSTLEN];
+ char *p;
+ char *dot;
+
+ ent = _hcfindname_exact(name);
+ if (!ent && strlen(name) < sizeof(namebuf)) {
+ strcpy(namebuf, name);
+ p = namebuf;
+ do {
+ dot = strchr(p, '.');
+ if (!dot)
+ break;
+ if (dot > p) {
+ *(dot - 1) = '*';
+ ent = _hcfindname_exact(dot - 1);
+ }
+ p = dot + 1;
+ }
+ while (!ent);
+ }
+
+ return ent;
+}
+
/*
* Find next name on line, if any.
*

35
patches/leos/platform_bionic/0004-hosts_toggle.patch
View File

@ -1,35 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tad <tad@spotco.us>
Date: Wed, 20 Apr 2022 00:40:52 -0400
Subject: [PATCH] Add a toggle to disable /etc/hosts lookup
Signed-off-by: Tad <tad@spotco.us>
Change-Id: I92679c57e73228dc194e61a86ea1a18b2ac90e04
---
libc/dns/net/getaddrinfo.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libc/dns/net/getaddrinfo.c b/libc/dns/net/getaddrinfo.c
index cc94b21e2..12294da04 100644
--- a/libc/dns/net/getaddrinfo.c
+++ b/libc/dns/net/getaddrinfo.c
@@ -83,6 +83,7 @@
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/socket.h>
+#include <sys/system_properties.h>
#include <sys/un.h>
#include <net/if.h>
#include <netinet/in.h>
@@ -2127,6 +2128,11 @@ _files_getaddrinfo(void *rv, void *cb_data, va_list ap)
name = va_arg(ap, char *);
pai = va_arg(ap, struct addrinfo *);
+ char value[PROP_VALUE_MAX] = { 0 };
+ if (__system_property_get("persist.security.hosts_disable", value) != 0)
+ if (atoi(value) != 0 && strcmp(name, "localhost") != 0 && strcmp(name, "ip6-localhost") != 0)
+ return NS_NOTFOUND;
+
memset(&sentinel, 0, sizeof(sentinel));
cur = &sentinel;
int gai_error = hc_getaddrinfo(name, NULL, pai, &cur);

156
patches/leos/platform_packages_apps_Settings/0001-Host-toogle-new.patch
View File

@ -1,156 +0,0 @@
From 436f872cd2d42cf2ad1015eb921376cbe1eede1b Mon Sep 17 00:00:00 2001
From: harvey186 <harvey186@hotmail.com>
Date: Mon, 18 Dec 2023 11:59:34 +0100
Subject: [PATCH] Host toogle new
Change-Id: I30b1221f456bb0bb95966789724e292f5b3047b9
---
res/values/strings.xml | 3 +
res/xml/privacy_dashboard_settings.xml | 7 ++
.../security/HostsPreferenceController.java | 106 ++++++++++++++++++
.../settings/security/SecuritySettings.java | 1 +
4 files changed, 117 insertions(+)
create mode 100644 src/com/android/settings/security/HostsPreferenceController.java
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 69a03bd4f9..1f58bb9d62 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -752,6 +752,9 @@
<string name="security_settings_face_settings_require_confirmation">Always require confirmation</string>
<!-- When authenticating in apps, always require confirmation (e.g. confirm button) after a face is authenticated. [CHAR LIMIT=70] -->
<string name="security_settings_face_settings_require_confirmation_details">When using Face Unlock in apps, always require confirmation step</string>
+ <string name="hosts_disable_title">Disable DNS content blocker</string>
+ <string name="hosts_disable_summary">Disables use of the included /etc/hosts database for data collection and malware blocking.</string>
+
<!-- Button text in face settings which removes the user's face model from the device [CHAR LIMIT=40] -->
<string name="security_settings_face_settings_remove_face_model">Delete face model</string>
<!-- Button text in face settings which lets the user enroll their face [CHAR LIMIT=40] -->
diff --git a/src/com/android/settings/security/HostsPreferenceController.java b/src/com/android/settings/security/HostsPreferenceController.java
new file mode 100644
index 0000000000..d8af6d2649
--- /dev/null
+++ b/src/com/android/settings/security/HostsPreferenceController.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.settings.security;
+
+import android.content.Context;
+
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.os.SystemProperties;
+
+import android.provider.Settings;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceGroup;
+import androidx.preference.PreferenceScreen;
+import androidx.preference.TwoStatePreference;
+import androidx.preference.SwitchPreference;
+
+import com.android.internal.widget.LockPatternUtils;
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.core.lifecycle.events.OnResume;
+
+public class HostsPreferenceController extends AbstractPreferenceController
+ implements PreferenceControllerMixin, OnResume, Preference.OnPreferenceChangeListener {
+
+ private static final String SYS_KEY_HOSTS_DISABLE = "persist.security.hosts_disable";
+ private static final String PREF_KEY_HOSTS_DISABLE = "hosts_disable";
+ private static final String PREF_KEY_SECURITY_CATEGORY = "security_category";
+
+ private PreferenceCategory mSecurityCategory;
+ private SwitchPreference mHostsDisable;
+ private boolean mIsAdmin;
+ private UserManager mUm;
+
+ public HostsPreferenceController(Context context) {
+ super(context);
+ mUm = UserManager.get(context);
+ }
+
+ @Override
+ public void displayPreference(PreferenceScreen screen) {
+ super.displayPreference(screen);
+ mSecurityCategory = screen.findPreference(PREF_KEY_SECURITY_CATEGORY);
+ updatePreferenceState();
+ }
+
+ @Override
+ public boolean isAvailable() {
+ mIsAdmin = mUm.isAdminUser();
+ return mIsAdmin;
+ }
+
+ @Override
+ public String getPreferenceKey() {
+ return PREF_KEY_HOSTS_DISABLE;
+ }
+
+ // TODO: should we use onCreatePreferences() instead?
+ private void updatePreferenceState() {
+ if (mSecurityCategory == null) {
+ return;
+ }
+
+ if (mIsAdmin) {
+ mHostsDisable = (SwitchPreference) mSecurityCategory.findPreference(PREF_KEY_HOSTS_DISABLE);
+ mHostsDisable.setChecked(SystemProperties.getInt(SYS_KEY_HOSTS_DISABLE, 0) == 1);
+ } else {
+ mSecurityCategory.removePreference(mSecurityCategory.findPreference(PREF_KEY_HOSTS_DISABLE));
+ }
+ }
+
+ @Override
+ public void onResume() {
+ updatePreferenceState();
+ if (mHostsDisable != null) {
+ boolean mode = mHostsDisable.isChecked();
+ SystemProperties.set(SYS_KEY_HOSTS_DISABLE, mode ? "1" : "0");
+ }
+ }
+
+ @Override
+ public boolean onPreferenceChange(Preference preference, Object value) {
+ final String key = preference.getKey();
+ if (PREF_KEY_HOSTS_DISABLE.equals(key)) {
+ final boolean mode = !mHostsDisable.isChecked();
+ SystemProperties.set(SYS_KEY_HOSTS_DISABLE, mode ? "1" : "0");
+ }
+ return true;
+ }
+}
diff --git a/src/com/android/settings/security/SecuritySettings.java b/src/com/android/settings/security/SecuritySettings.java
index b30b54d4d4..62eeaefd57 100644
--- a/src/com/android/settings/security/SecuritySettings.java
+++ b/src/com/android/settings/security/SecuritySettings.java
@@ -105,6 +105,7 @@ public class SecuritySettings extends DashboardFragment {
securityPreferenceControllers.add(new CombinedBiometricStatusPreferenceController(
context, lifecycle));
securityPreferenceControllers.add(new ChangeScreenLockPreferenceController(context, host));
+ securityPreferenceControllers.add(new HostsPreferenceController(context));
controllers.add(new PreferenceCategoryController(context, SECURITY_CATEGORY)
.setChildren(securityPreferenceControllers));
controllers.addAll(securityPreferenceControllers);
--
2.34.1

32
patches/leos/platform_packages_apps_Settings/0001-Hosts_toogle_new_dev_options.patch
View File

@ -1,32 +0,0 @@
From 1da77885c43a2f95f427f0a30be648c63e505d64 Mon Sep 17 00:00:00 2001
From: harvey186 <harvey186@hotmail.com>
Date: Mon, 18 Dec 2023 12:38:03 +0100
Subject: [PATCH] Hosts_toogle_new_dev_options
Change-Id: I126c43dd2d011439591bf3f6ff1d718056359a86
---
res/xml/development_settings.xml | 7 ++
1 files changed, 163 insertions(+), 7 deletions(-)
diff --git a/res/xml/development_settings.xml b/res/xml/development_settings.xml
index 32acac66dd..ee433d1c34 100644
--- a/res/xml/development_settings.xml
+++ b/res/xml/development_settings.xml
@@ -28,6 +28,13 @@
android:title="@string/memory_settings_title"
android:summary="@string/summary_placeholder"
android:fragment="com.android.settings.applications.ProcessStatsSummary" />
+
+ <!-- Hosts toggle -->
+ <SwitchPreference
+ android:key="hosts_disable"
+ android:title="@string/hosts_disable_title"
+ android:summary="@string/hosts_disable_summary"
+ android:persistent="false" />
<com.android.settings.BugreportPreference
android:key="bugreport"
--
2.34.1

375
patches/leos/platform_packages_apps_Settings/0002-Captive_Portal_Toggle.patchXXX
View File

@ -1,375 +0,0 @@
From fd6e31cb762b210326b08d77502235812cc80905 Mon Sep 17 00:00:00 2001
From: harvey186 <harvey186@hotmail.com>
Date: Sat, 21 Oct 2023 13:10:09 +0200
Subject: [PATCH] Captive_Portal_Toggle.patch
---
res/values/arrays.xml | 21 ++
res/values/strings.xml | 3 +
...ConnectivityCheckPreferenceController.java | 295 ++++++++++++++++++
.../network/NetworkDashboardFragment.java | 3 +
4 files changed, 322 insertions(+)
create mode 100644 src/com/android/settings/network/ConnectivityCheckPreferenceController.java
diff --git a/res/values/arrays.xml b/res/values/arrays.xml
index 787163e0ff..ebba89e7e1 100644
--- a/res/values/arrays.xml
+++ b/res/values/arrays.xml
@@ -82,6 +82,27 @@
<item>10 minutes</item>
<item>30 minutes</item>
</string-array>
+
+ <string-array name="connectivity_check_entries">
+ <item>Disabled</item>
+ <item>DivestOS (US)</item>
+ <item>Kuketz (DE) [default]</item>
+ <item>openSUSE (DE)</item>
+ <item>Ubuntu (UK)</item>
+ <item>Graphene (US)</item>
+ <item>Kuketz (DE)</item>
+ </string-array>
+
+ <string-array name="connectivity_check_values" translatable="false">
+ <item>0</item>
+ <item>1</item>
+ <item>2</item>
+ <item>3</item>
+ <item>4</item>
+ <item>5</item>
+ <item>6</item>
+ </string-array>
+
<!-- Do not translate. -->
<string-array name="lock_after_timeout_values" translatable="false">
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 1ad45d59e1..4a78bcba5e 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -12133,4 +12133,7 @@
<!-- Warning message when we try to dock an app not supporting multiple instances split into multiple sides [CHAR LIMIT=NONE] -->
<string name="dock_multi_instances_not_supported_text">"This app can only be opened in 1 window"</string>
+ <string name="connectivity_check_title">Internet connectivity check</string>
+ <string name="connectivity_check_summary">HTTP endpoints to use for performing internet connectivity checks.</string>
+
</resources>
diff --git a/src/com/android/settings/network/ConnectivityCheckPreferenceController.java b/src/com/android/settings/network/ConnectivityCheckPreferenceController.java
new file mode 100644
index 0000000000..04bcbe3b60
--- /dev/null
+++ b/src/com/android/settings/network/ConnectivityCheckPreferenceController.java
@@ -0,0 +1,295 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.network;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.res.Resources;
+import android.database.ContentObserver;
+import android.net.LinkProperties;
+import android.net.Network;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.provider.Settings;
+import androidx.preference.ListPreference;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+import com.android.internal.util.ArrayUtils;
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
+import com.android.settingslib.RestrictedLockUtilsInternal;
+import com.android.settingslib.core.lifecycle.events.OnResume;
+
+public class ConnectivityCheckPreferenceController
+ extends BasePreferenceController
+ implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener,
+ OnResume {
+
+ // imported defaults from AOSP NetworkStack
+ private static final String STANDARD_HTTPS_URL =
+ "http://captiveportal.kuketz.de/generate_204";
+ private static final String STANDARD_HTTP_URL =
+ "http://captiveportal.kuketz.de/generate_204";
+ private static final String STANDARD_FALLBACK_URL =
+ "http://captiveportal.kuketz.de/gen_204";
+ private static final String STANDARD_OTHER_FALLBACK_URLS =
+ "http://captiveportal.kuketz.de/generate_204";
+
+ // GrapheneOS
+ private static final String GRAPHENEOS_CAPTIVE_PORTAL_HTTPS_URL =
+ "https://connectivitycheck.grapheneos.network/generate_204";
+ private static final String GRAPHENEOS_CAPTIVE_PORTAL_HTTP_URL =
+ "http://connectivitycheck.grapheneos.network/generate_204";
+ private static final String GRAPHENEOS_CAPTIVE_PORTAL_FALLBACK_URL =
+ "http://grapheneos.online/gen_204";
+ private static final String GRAPHENEOS_CAPTIVE_PORTAL_OTHER_FALLBACK_URL =
+ "http://grapheneos.online/generate_204";
+
+ // DivestOS
+ private static final String DIVESTOS_HTTPS_URL =
+ "https://divestos.org/generate_204";
+ private static final String DIVESTOS_HTTP_URL =
+ "http://divestos.org/generate_204";
+
+ // openSUSE
+ private static final String OPENSUSE_HTTPS_URL =
+ "https://conncheck.opensuse.org";
+ private static final String OPENSUSE_HTTP_URL =
+ "http://conncheck.opensuse.org";
+
+ // Ubuntu
+ private static final String UBUNTU_HTTPS_URL =
+ "https://connectivity-check.ubuntu.com";
+ private static final String UBUNTU_HTTP_URL =
+ "http://connectivity-check.ubuntu.com";
+
+ // Kuketz, https://www.kuketz-blog.de/android-captive-portal-check-204-http-antwort-von-captiveportal-kuketz-de/
+ private static final String KUKETZ_HTTPS_URL =
+ "https://captiveportal.kuketz.de";
+ private static final String KUKETZ_HTTP_URL =
+ "http://captiveportal.kuketz.de";
+
+ private static final int DISABLED_CAPTIVE_PORTAL_INTVAL = 0;
+ private static final int DIVESTOS_CAPTIVE_PORTAL_HTTP_URL_INTVAL = 1;
+ private static final int STANDARD_CAPTIVE_PORTAL_HTTP_URL_INTVAL = 2;
+ private static final int OPENSUSE_CAPTIVE_PORTAL_HTTP_URL_INTVAL = 3;
+ private static final int UBUNTU_CAPTIVE_PORTAL_HTTP_URL_INTVAL = 4;
+ private static final int GRAPHENEOS_CAPTIVE_PORTAL_HTTP_URL_INTVAL = 5;
+ private static final int KUKETZ_CAPTIVE_PORTAL_HTTP_URL_INTVAL = 6;
+
+ private static final String KEY_CONNECTIVITY_CHECK_SETTINGS =
+ "connectivity_check_settings";
+
+ private ListPreference mConnectivityPreference;
+
+ public ConnectivityCheckPreferenceController(Context context) {
+ super(context, KEY_CONNECTIVITY_CHECK_SETTINGS);
+ }
+
+ @Override
+ public int getAvailabilityStatus() {
+ if (isDisabledByAdmin()) {
+ return BasePreferenceController.DISABLED_FOR_USER;
+ }
+ return BasePreferenceController.AVAILABLE;
+ }
+
+ @Override
+ public void displayPreference(PreferenceScreen screen) {
+ ListPreference captiveList = new ListPreference(screen.getContext());
+ captiveList.setKey(KEY_CONNECTIVITY_CHECK_SETTINGS);
+ captiveList.setOrder(30);
+ captiveList.setIcon(R.drawable.ic_settings_language);
+ captiveList.setTitle(R.string.connectivity_check_title);
+ captiveList.setSummary(R.string.connectivity_check_summary);
+ captiveList.setEntries(R.array.connectivity_check_entries);
+ captiveList.setEntryValues(R.array.connectivity_check_values);
+
+ if (mConnectivityPreference == null) {
+ screen.addPreference(captiveList);
+ mConnectivityPreference = captiveList;
+ }
+ super.displayPreference(screen);
+ updatePreferenceState();
+ }
+
+ @Override
+ public String getPreferenceKey() {
+ return KEY_CONNECTIVITY_CHECK_SETTINGS;
+ }
+
+ private void updatePreferenceState() {
+ if (Settings.Global.getInt(mContext.getContentResolver(),
+ Settings.Global.CAPTIVE_PORTAL_MODE, Settings.Global.CAPTIVE_PORTAL_MODE_PROMPT)
+ == Settings.Global.CAPTIVE_PORTAL_MODE_IGNORE) {
+ mConnectivityPreference.setValueIndex(DISABLED_CAPTIVE_PORTAL_INTVAL);
+ return;
+ }
+
+ String pref = Settings.Global.getString(
+ mContext.getContentResolver(), Settings.Global.CAPTIVE_PORTAL_HTTP_URL);
+ if (STANDARD_HTTP_URL.equals(pref)) {
+ mConnectivityPreference.setValueIndex(
+ STANDARD_CAPTIVE_PORTAL_HTTP_URL_INTVAL);
+ } else if (GRAPHENEOS_CAPTIVE_PORTAL_HTTP_URL.equals(pref)) {
+ mConnectivityPreference.setValueIndex(
+ GRAPHENEOS_CAPTIVE_PORTAL_HTTP_URL_INTVAL);
+ } else if (DIVESTOS_HTTP_URL.equals(pref)) {
+ mConnectivityPreference.setValueIndex(
+ DIVESTOS_CAPTIVE_PORTAL_HTTP_URL_INTVAL);
+ } else if (OPENSUSE_HTTP_URL.equals(pref)) {
+ mConnectivityPreference.setValueIndex(
+ OPENSUSE_CAPTIVE_PORTAL_HTTP_URL_INTVAL);
+ } else if (UBUNTU_HTTP_URL.equals(pref)) {
+ mConnectivityPreference.setValueIndex(
+ UBUNTU_CAPTIVE_PORTAL_HTTP_URL_INTVAL);
+ } else if (KUKETZ_HTTP_URL.equals(pref)) {
+ mConnectivityPreference.setValueIndex(
+ KUKETZ_CAPTIVE_PORTAL_HTTP_URL_INTVAL);
+ }
+ }
+
+ @Override
+ public void onResume() {
+ updatePreferenceState();
+ if (mConnectivityPreference != null) {
+ setCaptivePortalURLs(
+ mContext.getContentResolver(),
+ Integer.parseInt(mConnectivityPreference.getValue()));
+ }
+ }
+
+ private void setCaptivePortalURLs(ContentResolver cr, int mode) {
+ switch (mode) {
+ case STANDARD_CAPTIVE_PORTAL_HTTP_URL_INTVAL:
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
+ STANDARD_HTTP_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL,
+ STANDARD_HTTPS_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL,
+ STANDARD_FALLBACK_URL);
+ Settings.Global.putString(
+ cr, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS,
+ STANDARD_OTHER_FALLBACK_URLS);
+ Settings.Global.putInt(cr, Settings.Global.CAPTIVE_PORTAL_MODE,
+ Settings.Global.CAPTIVE_PORTAL_MODE_PROMPT);
+ break;
+ case GRAPHENEOS_CAPTIVE_PORTAL_HTTP_URL_INTVAL:
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
+ GRAPHENEOS_CAPTIVE_PORTAL_HTTP_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL,
+ GRAPHENEOS_CAPTIVE_PORTAL_HTTPS_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL,
+ GRAPHENEOS_CAPTIVE_PORTAL_FALLBACK_URL);
+ Settings.Global.putString(
+ cr, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS,
+ GRAPHENEOS_CAPTIVE_PORTAL_OTHER_FALLBACK_URL);
+ Settings.Global.putInt(cr, Settings.Global.CAPTIVE_PORTAL_MODE,
+ Settings.Global.CAPTIVE_PORTAL_MODE_PROMPT);
+ break;
+ case DIVESTOS_CAPTIVE_PORTAL_HTTP_URL_INTVAL:
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
+ DIVESTOS_HTTP_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL,
+ DIVESTOS_HTTPS_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL,
+ DIVESTOS_HTTP_URL);
+ Settings.Global.putString(
+ cr, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS,
+ DIVESTOS_HTTP_URL);
+ Settings.Global.putInt(cr, Settings.Global.CAPTIVE_PORTAL_MODE,
+ Settings.Global.CAPTIVE_PORTAL_MODE_PROMPT);
+ break;
+ case OPENSUSE_CAPTIVE_PORTAL_HTTP_URL_INTVAL:
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
+ OPENSUSE_HTTP_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL,
+ OPENSUSE_HTTPS_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL,
+ OPENSUSE_HTTP_URL);
+ Settings.Global.putString(
+ cr, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS,
+ OPENSUSE_HTTP_URL);
+ Settings.Global.putInt(cr, Settings.Global.CAPTIVE_PORTAL_MODE,
+ Settings.Global.CAPTIVE_PORTAL_MODE_PROMPT);
+ break;
+ case UBUNTU_CAPTIVE_PORTAL_HTTP_URL_INTVAL:
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
+ UBUNTU_HTTP_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL,
+ UBUNTU_HTTPS_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL,
+ UBUNTU_HTTP_URL);
+ Settings.Global.putString(
+ cr, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS,
+ UBUNTU_HTTP_URL);
+ Settings.Global.putInt(cr, Settings.Global.CAPTIVE_PORTAL_MODE,
+ Settings.Global.CAPTIVE_PORTAL_MODE_PROMPT);
+ break;
+ case KUKETZ_CAPTIVE_PORTAL_HTTP_URL_INTVAL:
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
+ KUKETZ_HTTP_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL,
+ KUKETZ_HTTPS_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL,
+ KUKETZ_HTTP_URL);
+ Settings.Global.putString(
+ cr, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS,
+ KUKETZ_HTTP_URL);
+ Settings.Global.putInt(cr, Settings.Global.CAPTIVE_PORTAL_MODE,
+ Settings.Global.CAPTIVE_PORTAL_MODE_PROMPT);
+ break;
+ default:
+ // Default URLs as placeholder
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
+ STANDARD_HTTP_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL,
+ STANDARD_HTTPS_URL);
+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL,
+ STANDARD_FALLBACK_URL);
+ Settings.Global.putString(
+ cr, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS,
+ STANDARD_OTHER_FALLBACK_URLS);
+ Settings.Global.putInt(cr, Settings.Global.CAPTIVE_PORTAL_MODE,
+ Settings.Global.CAPTIVE_PORTAL_MODE_IGNORE);
+ }
+ }
+
+ @Override
+ public boolean onPreferenceChange(Preference preference, Object value) {
+ final String key = preference.getKey();
+ if (KEY_CONNECTIVITY_CHECK_SETTINGS.equals(key)) {
+ setCaptivePortalURLs(mContext.getContentResolver(),
+ Integer.parseInt((String)value));
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ private EnforcedAdmin getEnforcedAdmin() {
+ return RestrictedLockUtilsInternal.checkIfRestrictionEnforced(
+ mContext, UserManager.DISALLOW_CONFIG_PRIVATE_DNS,
+ UserHandle.myUserId());
+ }
+
+ private boolean isDisabledByAdmin() { return getEnforcedAdmin() != null; }
+}
diff --git a/src/com/android/settings/network/NetworkDashboardFragment.java b/src/com/android/settings/network/NetworkDashboardFragment.java
index 4ea3464569..00daadb8dc 100644
--- a/src/com/android/settings/network/NetworkDashboardFragment.java
+++ b/src/com/android/settings/network/NetworkDashboardFragment.java
@@ -123,6 +123,9 @@ public class NetworkDashboardFragment extends DashboardFragment implements
}
controllers.add(privateDnsPreferenceController);
controllers.add(new NetworkProviderCallsSmsController(context, lifecycle, lifecycleOwner));
+ ConnectivityCheckPreferenceController connectivityCheck =
+ new ConnectivityCheckPreferenceController(context);
+ controllers.add(connectivityCheck);
// Start SettingsDumpService after the MobileNetworkRepository is created.
Intent intent = new Intent(context, SettingsDumpService.class);
--
2.34.1

655
patches/leos/platform_packages_modules_DnsResolver/0000-Hosts_Cache.patch
View File

@ -1,655 +0,0 @@
From 87ba93bc9d164aefb840ea8eea654036a3116e49 Mon Sep 17 00:00:00 2001
From: harvey186 <harvey186@hotmail.com>
Date: Sat, 21 Oct 2023 11:09:30 +0200
Subject: [PATCH] 0000-Hosts_Cache
Change-Id: Icb58ddeedcc49c3b3a23f9ef145a256be3d03b81
---
0000-Hosts_Cache.patch | 633 ++++++++++++++++++++++
0001-Hosts_Wildcards.patch | 72 +++
0002-hosts_toggle.patch | 33 ++
0003-Reuse-align_ptr-in-hosts_cache.patch | 34 ++
Android.bp | 1 +
getaddrinfo.cpp | 8 +
hosts_cache.cpp | 523 ++++++++++++++++++
hosts_cache.h | 28 +
sethostent.cpp | 7 +
9 files changed, 1339 insertions(+)
create mode 100644 0000-Hosts_Cache.patch
create mode 100644 0001-Hosts_Wildcards.patch
create mode 100644 0002-hosts_toggle.patch
create mode 100644 0003-Reuse-align_ptr-in-hosts_cache.patch
create mode 100644 hosts_cache.cpp
create mode 100644 hosts_cache.h
diff --git a/Android.bp b/Android.bp
index beead98..1841347 100644
--- a/Android.bp
+++ b/Android.bp
@@ -193,6 +193,7 @@ cc_library {
"getaddrinfo.cpp",
"gethnamaddr.cpp",
"sethostent.cpp",
+ "hosts_cache.cpp",
"res_cache.cpp",
"res_comp.cpp",
"res_debug.cpp",
diff --git a/getaddrinfo.cpp b/getaddrinfo.cpp
index ca3c535..064ff57 100644
--- a/getaddrinfo.cpp
+++ b/getaddrinfo.cpp
@@ -64,6 +64,7 @@
#include "res_debug.h"
#include "resolv_cache.h"
#include "resolv_private.h"
+#include "hosts_cache.h"
#define ANY 0
@@ -1552,6 +1553,13 @@ static bool files_getaddrinfo(const size_t netid, const char* name, const addrin
FILE* hostf = nullptr;
cur = &sentinel;
+
+ int hc_error = hc_getaddrinfo(name, pai, &cur);
+ if (hc_error != EAI_SYSTEM) {
+ *res = sentinel.ai_next;
+ return sentinel.ai_next != NULL;
+ }
+
_sethtent(&hostf);
while ((p = _gethtent(&hostf, name, pai)) != nullptr) {
cur->ai_next = p;
diff --git a/hosts_cache.cpp b/hosts_cache.cpp
new file mode 100644
index 0000000..a40fb40
--- /dev/null
+++ b/hosts_cache.cpp
@@ -0,0 +1,523 @@
+/*
+ * Copyright (C) 2016 The CyanogenMod Project
+ * Copyright (C) 2020 The LineageOS Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <fcntl.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <strings.h>
+#include <sys/file.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <utime.h>
+#include <pthread.h>
+
+#include <netinet/in6.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+
+#include "hostent.h"
+#include "resolv_private.h"
+
+constexpr int MAXALIASES = 35;
+constexpr int MAXADDRS = 35;
+
+#define MAX_ADDRLEN (INET6_ADDRSTRLEN - (1 + 5))
+#define MAX_HOSTLEN MAXHOSTNAMELEN
+
+#define ESTIMATED_LINELEN 32
+#define HCFILE_ALLOC_SIZE 256
+
+/* From sethostent.c */
+#define ALIGNBYTES (sizeof(uintptr_t) - 1)
+#define ALIGN(p) (((uintptr_t)(p) + ALIGNBYTES) &~ ALIGNBYTES)
+
+#define MIN(a, b) (((a) < (b)) ? (a) : (b))
+
+/*
+ * Host cache entry for hcfile.c_data.
+ * Offsets are into hcfile.h_data.
+ * Strings are *not* terminated by NULL, but by whitespace (isspace) or '#'.
+ * Use hstr* functions with these.
+ */
+struct hcent
+{
+ uint32_t addr;
+ uint32_t name;
+};
+
+/*
+ * Overall host cache file state.
+ */
+struct hcfile
+{
+ int h_fd;
+ struct stat h_st;
+ char* h_data;
+
+ uint32_t c_alloc;
+ uint32_t c_len;
+ struct hcent* c_data;
+};
+static struct hcfile hcfile;
+static pthread_mutex_t hclock = PTHREAD_MUTEX_INITIALIZER;
+
+static size_t hstrlen(const char *s)
+{
+ const char *p = s;
+ while (*p && *p != '#' && !isspace(*p))
+ ++p;
+ return p - s;
+}
+
+static int hstrcmp(const char *a, const char *b)
+{
+ size_t alen = hstrlen(a);
+ size_t blen = hstrlen(b);
+ int res = strncmp(a, b, MIN(alen, blen));
+ if (res == 0)
+ res = alen - blen;
+ return res;
+}
+
+static char *hstrcpy(char *dest, const char *src)
+{
+ size_t len = hstrlen(src);
+ memcpy(dest, src, len);
+ dest[len] = '\0';
+ return dest;
+}
+
+static char *hstrdup(const char *s)
+{
+ size_t len = hstrlen(s);
+ char *dest = (char *)malloc(len + 1);
+ if (!dest)
+ return NULL;
+ memcpy(dest, s, len);
+ dest[len] = '\0';
+ return dest;
+}
+
+static int cmp_hcent_name(const void *a, const void *b)
+{
+ struct hcent *ea = (struct hcent *)a;
+ const char *na = hcfile.h_data + ea->name;
+ struct hcent *eb = (struct hcent *)b;
+ const char *nb = hcfile.h_data + eb->name;
+
+ return hstrcmp(na, nb);
+}
+
+static struct hcent *_hcfindname(const char *name)
+{
+ size_t first, last, mid;
+ struct hcent *cur = NULL;
+ int cmp;
+
+ if (hcfile.c_len == 0)
+ return NULL;
+
+ first = 0;
+ last = hcfile.c_len - 1;
+ mid = (first + last) / 2;
+ while (first <= last) {
+ cur = hcfile.c_data + mid;
+ cmp = hstrcmp(hcfile.h_data + cur->name, name);
+ if (cmp == 0)
+ goto found;
+ if (cmp < 0)
+ first = mid + 1;
+ else {
+ if (mid > 0)
+ last = mid - 1;
+ else
+ return NULL;
+ }
+ mid = (first + last) / 2;
+ }
+ return NULL;
+
+found:
+ while (cur > hcfile.c_data) {
+ struct hcent *prev = cur - 1;
+ cmp = cmp_hcent_name(cur, prev);
+ if (cmp)
+ break;
+ cur = prev;
+ }
+
+ return cur;
+}
+
+/*
+ * Find next name on line, if any.
+ *
+ * Assumes that line is terminated by LF.
+ */
+static const char *_hcnextname(const char *name)
+{
+ while (!isspace(*name)) {
+ if (*name == '#')
+ return NULL;
+ ++name;
+ }
+ while (isspace(*name)) {
+ if (*name == '\n')
+ return NULL;
+ ++name;
+ }
+ if (*name == '#')
+ return NULL;
+ return name;
+}
+
+static int _hcfilemmap(void)
+{
+ struct stat st;
+ int h_fd;
+ char *h_addr;
+ const char *p, *pend;
+ uint32_t c_alloc;
+
+ h_fd = open(_PATH_HOSTS, O_CLOEXEC);
+ if (h_fd < 0)
+ return -1;
+ if (flock(h_fd, LOCK_EX) != 0) {
+ close(h_fd);
+ return -1;
+ }
+
+ if (hcfile.h_data) {
+ memset(&st, 0, sizeof(st));
+ if (fstat(h_fd, &st) == 0) {
+ if (st.st_size == hcfile.h_st.st_size &&
+ st.st_mtime == hcfile.h_st.st_mtime) {
+ flock(h_fd, LOCK_UN);
+ close(h_fd);
+ return 0;
+ }
+ }
+ free(hcfile.c_data);
+ munmap(hcfile.h_data, hcfile.h_st.st_size);
+ close(hcfile.h_fd);
+ memset(&hcfile, 0, sizeof(struct hcfile));
+ }
+
+ if (fstat(h_fd, &st) != 0) {
+ flock(h_fd, LOCK_UN);
+ close(h_fd);
+ return -1;
+ }
+ h_addr = (char*)mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, h_fd, 0);
+ if (h_addr == MAP_FAILED) {
+ flock(h_fd, LOCK_UN);
+ close(h_fd);
+ return -1;
+ }
+
+ hcfile.h_fd = h_fd;
+ hcfile.h_st = st;
+ hcfile.h_data = h_addr;
+
+ c_alloc = 0;
+ /*
+ * Do an initial allocation if the file is "large". Estimate
+ * 32 bytes per line and define "large" as more than half of
+ * the alloc growth size (256 entries).
+ */
+ if (st.st_size >= ESTIMATED_LINELEN * HCFILE_ALLOC_SIZE / 2) {
+ c_alloc = st.st_size / ESTIMATED_LINELEN;
+ hcfile.c_data = (struct hcent*)malloc(c_alloc * sizeof(struct hcent));
+ if (!hcfile.c_data) {
+ goto oom;
+ }
+ }
+
+ p = (const char *)h_addr;
+ pend = p + st.st_size;
+ while (p < pend) {
+ const char *eol, *addr, *name;
+ size_t len;
+ addr = p;
+ eol = (const char*)memchr(p, '\n', pend - p);
+ if (!eol)
+ break;
+ p = eol + 1;
+ if (*addr == '#' || *addr == '\n')
+ continue;
+ len = hstrlen(addr);
+ if (len > MAX_ADDRLEN)
+ continue;
+ name = addr + len;
+ while (name < eol && isspace(*name))
+ ++name;
+ while (name < eol) {
+ len = hstrlen(name);
+ if (len == 0)
+ break;
+ if (len < MAX_HOSTLEN) {
+ struct hcent *ent;
+ if (c_alloc <= hcfile.c_len) {
+ struct hcent *c_data;
+ c_alloc += HCFILE_ALLOC_SIZE;
+ c_data = (struct hcent*)realloc(hcfile.c_data, c_alloc * sizeof(struct hcent));
+ if (!c_data) {
+ goto oom;
+ }
+ hcfile.c_data = c_data;
+ }
+ ent = hcfile.c_data + hcfile.c_len;
+ ent->addr = addr - h_addr;
+ ent->name = name - h_addr;
+ ++hcfile.c_len;
+ }
+ name += len;
+ while (name < eol && isspace(*name))
+ ++name;
+ }
+ }
+
+ qsort(hcfile.c_data, hcfile.c_len,
+ sizeof(struct hcent), cmp_hcent_name);
+
+ flock(h_fd, LOCK_UN);
+
+ return 0;
+
+oom:
+ free(hcfile.c_data);
+ munmap(hcfile.h_data, hcfile.h_st.st_size);
+ flock(hcfile.h_fd, LOCK_UN);
+ close(hcfile.h_fd);
+ memset(&hcfile, 0, sizeof(struct hcfile));
+ return -1;
+}
+
+/*
+ * Caching version of getaddrinfo.
+ *
+ * If we find the requested host name in the cache, use getaddrinfo to
+ * populate the result for each address we find.
+ *
+ * Note glibc and bionic differ in the handling of ai_canonname. POSIX
+ * says that ai_canonname is only populated in the first result entry.
+ * glibc does this. bionic populates ai_canonname in all result entries.
+ * We choose the POSIX/glibc way here.
+ */
+int hc_getaddrinfo(const char *name, const struct addrinfo* hints, struct addrinfo** result)
+{
+ int ret = 0;
+ struct hcent *ent, *cur;
+ struct addrinfo *ai;
+ struct addrinfo rhints;
+ struct addrinfo *last;
+ int canonname = 0;
+ int cmp;
+
+ if (getenv("ANDROID_HOSTS_CACHE_DISABLE") != NULL)
+ return EAI_SYSTEM;
+
+ if (!name)
+ return EAI_SYSTEM;
+
+ pthread_mutex_lock(&hclock);
+
+ if (_hcfilemmap() != 0) {
+ ret = EAI_SYSTEM;
+ goto out;
+ }
+ ent = _hcfindname(name);
+ if (!ent) {
+ ret = EAI_NONAME;
+ goto out;
+ }
+
+ if (hints) {
+ canonname = (hints->ai_flags & AI_CANONNAME);
+ memcpy(&rhints, hints, sizeof(rhints));
+ rhints.ai_flags &= ~AI_CANONNAME;
+ }
+ else {
+ memset(&rhints, 0, sizeof(rhints));
+ }
+ rhints.ai_flags |= AI_NUMERICHOST;
+
+ last = NULL;
+ cur = ent;
+ do {
+ char addrstr[MAX_ADDRLEN];
+ struct addrinfo *res;
+
+ hstrcpy(addrstr, hcfile.h_data + cur->addr);
+
+ if (getaddrinfo_numeric(addrstr, nullptr, rhints, &res) == 0) {
+ if (!last)
+ (*result)->ai_next = res;
+ else
+ last->ai_next = res;
+ last = res;
+ while (last->ai_next)
+ last = last->ai_next;
+ }
+
+ if(cur + 1 >= hcfile.c_data + hcfile.c_len)
+ break;
+ cmp = cmp_hcent_name(cur, cur + 1);
+ cur = cur + 1;
+ }
+ while (!cmp);
+
+ if (last == NULL) {
+ /* This check is equivalent to (*result)->ai_next == NULL */
+ ret = EAI_NODATA;
+ goto out;
+ }
+
+ if (canonname) {
+ ai = (*result)->ai_next;
+ free(ai->ai_canonname);
+ ai->ai_canonname = hstrdup(hcfile.h_data + ent->name);
+ }
+
+out:
+ pthread_mutex_unlock(&hclock);
+ return ret;
+}
+
+/*
+ * Caching version of gethtbyname.
+ *
+ * Note glibc and bionic differ in the handling of aliases. glibc returns
+ * all aliases for all entries, regardless of whether they match h_addrtype.
+ * bionic returns only the aliases for the first hosts entry. We return all
+ * aliases for all IPv4 entries.
+ *
+ * Additionally, if an alias is IPv6 and the primary name for an alias also
+ * has an IPv4 entry, glibc will return the IPv4 address(es), but bionic
+ * will not. Neither do we.
+ */
+int hc_gethtbyname(const char *host, int af, struct getnamaddr *info)
+{
+ int ret = NETDB_SUCCESS;
+ struct hcent *ent, *cur;
+ int cmp;
+ size_t addrlen;
+ unsigned int naliases = 0;
+ char *aliases[MAXALIASES];
+ unsigned int naddrs = 0;
+ char *addr_ptrs[MAXADDRS];
+ unsigned int n;
+
+ if (getenv("ANDROID_HOSTS_CACHE_DISABLE") != NULL)
+ return NETDB_INTERNAL;
+
+ switch (af) {
+ case AF_INET: addrlen = NS_INADDRSZ; break;
+ case AF_INET6: addrlen = NS_IN6ADDRSZ; break;
+ default:
+ return NETDB_INTERNAL;
+ }
+
+ pthread_mutex_lock(&hclock);
+
+ if (_hcfilemmap() != 0) {
+ ret = NETDB_INTERNAL;
+ goto out;
+ }
+
+ ent = _hcfindname(host);
+ if (!ent) {
+ ret = HOST_NOT_FOUND;
+ goto out;
+ }
+
+ cur = ent;
+ do {
+ char addr[16];
+ char addrstr[MAX_ADDRLEN];
+ char namestr[MAX_HOSTLEN];
+ const char *name;
+
+ hstrcpy(addrstr, hcfile.h_data + cur->addr);
+ if (inet_pton(af, addrstr, &addr) == 1) {
+ char *aligned;
+ /* First match is considered the official hostname */
+ if (naddrs == 0) {
+ hstrcpy(namestr, hcfile.h_data + cur->name);
+ HENT_SCOPY(info->hp->h_name, namestr, info->buf, info->buflen);
+ }
+ for (name = hcfile.h_data + cur->name; name; name = _hcnextname(name)) {
+ if (!hstrcmp(name, host))
+ continue;
+ hstrcpy(namestr, name);
+ HENT_SCOPY(aliases[naliases], namestr, info->buf, info->buflen);
+ ++naliases;
+ if (naliases >= MAXALIASES)
+ goto nospc;
+ }
+ aligned = (char *)ALIGN(info->buf);
+ if (info->buf != aligned) {
+ if ((ptrdiff_t)info->buflen < (aligned - info->buf))
+ goto nospc;
+ info->buflen -= (aligned - info->buf);
+ info->buf = aligned;
+ }
+ HENT_COPY(addr_ptrs[naddrs], addr, addrlen, info->buf, info->buflen);
+ ++naddrs;
+ if (naddrs >= MAXADDRS)
+ goto nospc;
+ }
+
+ if(cur + 1 >= hcfile.c_data + hcfile.c_len)
+ break;
+ cmp = cmp_hcent_name(cur, cur + 1);
+ cur = cur + 1;
+ }
+ while (!cmp);
+
+ if (naddrs == 0) {
+ ret = HOST_NOT_FOUND;
+ goto out;
+ }
+
+ addr_ptrs[naddrs++] = NULL;
+ aliases[naliases++] = NULL;
+
+ /* hp->h_name already populated */
+ HENT_ARRAY(info->hp->h_aliases, naliases, info->buf, info->buflen);
+ for (n = 0; n < naliases; ++n) {
+ info->hp->h_aliases[n] = aliases[n];
+ }
+ info->hp->h_addrtype = af;
+ info->hp->h_length = addrlen;
+ HENT_ARRAY(info->hp->h_addr_list, naddrs, info->buf, info->buflen);
+ for (n = 0; n < naddrs; ++n) {
+ info->hp->h_addr_list[n] = addr_ptrs[n];
+ }
+
+out:
+ pthread_mutex_unlock(&hclock);
+ return ret;
+
+nospc:
+ ret = NETDB_INTERNAL;
+ goto out;
+}
diff --git a/hosts_cache.h b/hosts_cache.h
new file mode 100644
index 0000000..55138dc
--- /dev/null
+++ b/hosts_cache.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2016 The CyanogenMod Project
+ * Copyright (C) 2020 The LineageOS Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef NETD_RESOLV_HOSTS_CACHE_H
+#define NETD_RESOLV_HOSTS_CACHE_H
+
+struct getnamaddr;
+
+int hc_getaddrinfo(const char* name, const struct addrinfo* hints,
+ struct addrinfo** result);
+
+int hc_gethtbyname(const char *host, int af, struct getnamaddr *info);
+
+#endif
diff --git a/sethostent.cpp b/sethostent.cpp
index 7f9384c..f1bf657 100644
--- a/sethostent.cpp
+++ b/sethostent.cpp
@@ -43,6 +43,8 @@
#include "hostent.h"
#include "resolv_private.h"
+#include "hosts_cache.h"
+
constexpr int MAXALIASES = 35;
constexpr int MAXADDRS = 35;
@@ -69,6 +71,11 @@ int _hf_gethtbyname2(const char* name, int af, getnamaddr* info) {
char* aliases[MAXALIASES];
char* addr_ptrs[MAXADDRS];
+ int rc = hc_gethtbyname(name, af, info);
+ if (rc != NETDB_INTERNAL) {
+ return (rc == NETDB_SUCCESS ? 0 : EAI_NODATA);
+ }
+
FILE* hf = NULL;
sethostent_r(&hf);
if (hf == NULL) {
--
2.34.1

72
patches/leos/platform_packages_modules_DnsResolver/0001-Hosts_Wildcards.patch
View File

@ -1,72 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tom Marshall <tdm.code@gmail.com>
Date: Thu, 16 Jan 2020 13:07:04 -0800
Subject: [PATCH] DnsResolver: Support wildcards in cached hosts file
If an exact name is not found in the hosts file and the host name
contains at least one dot, search for entries of the form "*.domain",
where domain is the portion of the host name after the first dot. If
that is not found, repeat using the domain.
Example: a.b.c.example.com would search for the following in turn:
a.b.c.example.com
*.b.c.example.com
*.c.example.com
*.example.com
*.com
Note: this change is the analogue of the bionic change of the same name.
Both should be kept in sync.
Change-Id: I4b0bb81699151d5b371850daebf785e35ec9b170
---
hosts_cache.cpp | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/hosts_cache.cpp b/hosts_cache.cpp
index a40fb403..258eac1b 100644
--- a/hosts_cache.cpp
+++ b/hosts_cache.cpp
@@ -126,7 +126,7 @@ static int cmp_hcent_name(const void *a, const void *b)
return hstrcmp(na, nb);
}
-static struct hcent *_hcfindname(const char *name)
+static struct hcent *_hcfindname_exact(const char *name)
{
size_t first, last, mid;
struct hcent *cur = NULL;
@@ -167,6 +167,33 @@ found:
return cur;
}
+static struct hcent *_hcfindname(const char *name)
+{
+ struct hcent *ent;
+ char namebuf[MAX_HOSTLEN];
+ char *p;
+ char *dot;
+
+ ent = _hcfindname_exact(name);
+ if (!ent && strlen(name) < sizeof(namebuf)) {
+ strlcpy(namebuf, name, sizeof(namebuf));
+ p = namebuf;
+ do {
+ dot = strchr(p, '.');
+ if (!dot)
+ break;
+ if (dot > p) {
+ *(dot - 1) = '*';
+ ent = _hcfindname_exact(dot - 1);
+ }
+ p = dot + 1;
+ }
+ while (!ent);
+ }
+
+ return ent;
+}
+
/*
* Find next name on line, if any.
*

36
patches/leos/platform_packages_modules_DnsResolver/0002-hosts_toggle.patch
View File

@ -1,36 +0,0 @@
From 10344912d45747fc40cc07ae18c0b3753f4c545c Mon Sep 17 00:00:00 2001
From: harvey186 <harvey186@hotmail.com>
Date: Sat, 21 Oct 2023 11:14:38 +0200
Subject: [PATCH] 0002-hosts_toggle
Change-Id: Ie3f634e545352fd1f45d54fb75e255afe430e2a3
---
getaddrinfo.cpp | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/getaddrinfo.cpp b/getaddrinfo.cpp
index 064ff57..5177035 100644
--- a/getaddrinfo.cpp
+++ b/getaddrinfo.cpp
@@ -57,7 +57,7 @@
#include <android-base/logging.h>
#include <android-base/parseint.h>
-
+#include <android-base/properties.h>
#include "Experiments.h"
#include "netd_resolv/resolv.h"
#include "res_comp.h"
@@ -1548,6 +1548,9 @@ static struct addrinfo* getCustomHosts(const size_t netid, const char* _Nonnull
static bool files_getaddrinfo(const size_t netid, const char* name, const addrinfo* pai,
addrinfo** res) {
+ if ((android::base::GetIntProperty("persist.security.hosts_disable", 0) != 0) && (strcmp("localhost", name) != 0) && (strcmp("ip6-localhost", name) != 0))
+ return false;
+
struct addrinfo sentinel = {};
struct addrinfo *p, *cur;
FILE* hostf = nullptr;
--
2.34.1

36
patches/leos/platform_packages_modules_DnsResolver/0003-Reuse-align_ptr-in-hosts_cache.patch
View File

@ -1,36 +0,0 @@
From 25f474821b031c59b09d412c64900439ff0067de Mon Sep 17 00:00:00 2001
From: harvey186 <harvey186@hotmail.com>
Date: Mon, 11 Dec 2023 17:41:13 +0100
Subject: [PATCH] 0003-Reuse-align_ptr-in-hosts_cache
Change-Id: If83e3f195577e575a522c93172b414c0fd604272
---
hosts_cache.cpp | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/hosts_cache.cpp b/hosts_cache.cpp
index 489de4e..9578548 100644
--- a/hosts_cache.cpp
+++ b/hosts_cache.cpp
@@ -47,9 +47,6 @@ constexpr int MAXADDRS = 35;
#define ESTIMATED_LINELEN 32
#define HCFILE_ALLOC_SIZE 256
-/* From sethostent.c */
-#define ALIGNBYTES (sizeof(uintptr_t) - 1)
-#define ALIGN(p) (((uintptr_t)(p) + ALIGNBYTES) &~ ALIGNBYTES)
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
@@ -502,7 +499,7 @@ int hc_gethtbyname(const char *host, int af, struct getnamaddr *info)
if (naliases >= MAXALIASES)
goto nospc;
}
- aligned = (char *)ALIGN(info->buf);
+ aligned = align_ptr(info->buf);
if (info->buf != aligned) {
if ((ptrdiff_t)info->buflen < (aligned - info->buf))
goto nospc;
--
2.34.1

85
patches/leos/platform_packages_modules_DnsResolver/0006-hosts_cache_refresh.patch
View File

@ -1,85 +0,0 @@
From 8756a464be8dfad7096d66850a14edcc196625a3 Mon Sep 17 00:00:00 2001
From: harvey186 <harvey186@hotmail.com>
Date: Tue, 12 Dec 2023 12:51:33 +0100
Subject: [PATCH] hosts_cache_refresh
Change-Id: I627d15f0d53efd1ce2723376268c28ee9cea2536
---
hosts_cache.cpp | 36 +++++++-----------------------------
1 file changed, 7 insertions(+), 29 deletions(-)
diff --git a/hosts_cache.cpp b/hosts_cache.cpp
index 9578548..f795530 100644
--- a/hosts_cache.cpp
+++ b/hosts_cache.cpp
@@ -47,6 +47,9 @@ constexpr int MAXADDRS = 35;
#define ESTIMATED_LINELEN 32
#define HCFILE_ALLOC_SIZE 256
+/* From sethostent.c */
+#define ALIGNBYTES (sizeof(uintptr_t) - 1)
+#define ALIGN(p) (((uintptr_t)(p) + ALIGNBYTES) &~ ALIGNBYTES)
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
@@ -125,7 +128,7 @@ static int cmp_hcent_name(const void *a, const void *b)
return hstrcmp(na, nb);
}
-static struct hcent *_hcfindname_exact(const char *name)
+static struct hcent *_hcfindname(const char *name)
{
size_t first, last, mid;
struct hcent *cur = NULL;
@@ -166,33 +169,6 @@ found:
return cur;
}
-static struct hcent *_hcfindname(const char *name)
-{
- struct hcent *ent;
- char namebuf[MAX_HOSTLEN];
- char *p;
- char *dot;
-
- ent = _hcfindname_exact(name);
- if (!ent && strlen(name) < sizeof(namebuf)) {
- strlcpy(namebuf, name, sizeof(namebuf));
- p = namebuf;
- do {
- dot = strchr(p, '.');
- if (!dot)
- break;
- if (dot > p) {
- *(dot - 1) = '*';
- ent = _hcfindname_exact(dot - 1);
- }
- p = dot + 1;
- }
- while (!ent);
- }
-
- return ent;
-}
-
/*
* Find next name on line, if any.
*
@@ -499,7 +475,7 @@ int hc_gethtbyname(const char *host, int af, struct getnamaddr *info)
if (naliases >= MAXALIASES)
goto nospc;
}
- aligned = align_ptr(info->buf);
+ aligned = (char *)ALIGN(info->buf);
if (info->buf != aligned) {
if ((ptrdiff_t)info->buflen < (aligned - info->buf))
goto nospc;
@@ -545,3 +521,5 @@ out:
nospc:
ret = NETDB_INTERNAL;
+ goto out;
+}
--
2.34.1