Bryan Drewery bdrewery
bdrewery
/ gist:212362
Created
October 17, 2009 15:13
FreeBSD 7 kernel patch to block listening on IRCD ports on INADDR_ANY
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| --- ./sys/netinet/in_pcb.c.orig 2009-09-17 09:40:42.000000000 -0500 | |
| +++ ./sys/netinet/in_pcb.c 2009-10-03 11:07:16.000000000 -0500 | |
| @@ -346,6 +346,14 @@ | |
| priv_check_cred(cred, PRIV_NETINET_RESERVEDPORT, | |
| 0)) | |
| return (EACCES); | |
| + /* Deny listening on ircd ports on INADDR_ANY */ | |
| + if ((sin->sin_addr.s_addr == INADDR_ANY) && ( | |
| + (ntohs(lport) >= 6660 && ntohs(lport) <= 6669) || | |
| + (ntohs(lport) == 6697) || |
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| Index: src/sys/vm/vm_mmap.c | |
| =================================================================== | |
| --- ./sys/vm/vm_mmap.c (revision 171) | |
| +++ ./sys/vm/vm_mmap.c (working copy) | |
| @@ -88,6 +88,10 @@ | |
| static int max_proc_mmap; | |
| SYSCTL_INT(_vm, OID_AUTO, max_proc_mmap, CTLFLAG_RW, &max_proc_mmap, 0, ""); | |
| +static int mmap_random = 1; | |
| +SYSCTL_INT(_vm, OID_AUTO, mmap_random, CTLFLAG_RW, &mmap_random, 1, |
bdrewery
/ gist:212365
Created
October 17, 2009 15:15
FreeBSD 7 stackgap (people.freebsd.org/~ssouhlal/testing/stackgap-20050527.diff)
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| --- src/sys/kern/kern_exec.c (revision 171) | |
| +++ src/sys/kern/kern_exec.c (working copy) | |
| @@ -83,6 +83,7 @@ | |
| static int sysctl_kern_ps_strings(SYSCTL_HANDLER_ARGS); | |
| static int sysctl_kern_usrstack(SYSCTL_HANDLER_ARGS); | |
| static int sysctl_kern_stackprot(SYSCTL_HANDLER_ARGS); | |
| +static int sysctl_kern_stackgap_random(SYSCTL_HANDLER_ARGS); | |
| static int do_execve(struct thread *td, struct image_args *args, | |
| struct mac *mac_p); | |
bdrewery
/ gist:212369
Created
October 17, 2009 15:17
patch for pecl-htscanner to fix php_flag parsing
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| --- htscanner.c.orig 2009-08-03 17:37:27.000000000 +0200 | |
| +++ htscanner.c 2009-08-03 17:37:55.000000000 +0200 | |
| @@ -103,10 +103,17 @@ | |
| if (flag) { | |
| /* it's a flag */ | |
| - if (!strcasecmp(value, "On") || (value[0] == '1' && value[1] == '\0')) { | |
| + | |
| + /* | |
| + * check only for valid boolean values. |
bdrewery
/ gist:212373
Created
October 17, 2009 15:39
apache22 patch for SuexecUserdir - see http://alain.knaff.lu/howto/PhpSuexec/
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| --- modules/generators/mod_suexec.c 2006-07-12 05:38:44.000000000 +0200 | |
| +++ modules/generators/mod_suexec.c 2008-09-27 08:27:31.000000000 +0200 | |
| @@ -57,7 +57,8 @@ | |
| } | |
| static const char *set_suexec_ugid(cmd_parms *cmd, void *mconfig, | |
| - const char *uid, const char *gid) | |
| + const char *uid, const char *gid, | |
| + int userdir) | |
| { |
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| To run screen as non-root: | |
| chmod 0111 /usr/local/bin/screen | |
| chown nobody:utmp /usr/local/bin/screen | |
| # Run this. Add into /etc/rc.local as well if you have clear_tmp_enable="YES" | |
| install -d -o root -g wheel -m 1777 /tmp/uscreens | |
| Add this to /usr/local/etc/pkgtools.conf in the AFTERINSTALL block as so for auto fixing screen on portupgrade: | |
| AFTERINSTALL = { |
bdrewery
/ gist:212376
Created
October 17, 2009 15:48
bash helper scripts, dirname/basename scripted is much much much quicker than forking a new process
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| # From Shell Scripting Recipes -Chris F.A. Johnson | |
| split_line() { | |
| local IFS=${DELIM:- } | |
| local opts=$- | |
| set -f | |
| RET=( $* ) |
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| 1 hub binary. | |
| 2 leaf binaries. | |
| Leafs link over a unix domain socket to the first bot in their binary (the localhub). | |
| The localhub links to the hub(s). | |
| Speeds up linking / communicating. | |
| Lowers bandwidth needs (only need to download 1 userfile from hub per binary). | |
| Allows leaf bots to talk directly instead of relay through a far away hub. | |
| No extra configuration or setup required for this. |
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| static const char base64_blowfish_mod[65] = "./0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
| static const char base64_blowfish_mod_index[256] = { | |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, | |
| 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, -1, -1, -1, -1, -1, -1, | |
| -1, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, | |
| 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, -1, -1, -1, -1, -1, | |
| -1, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, | |
| 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, -1, -1, -1, -1, -1, |
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| static char parent[500] = ""; | |
| static char parent_args[500] = ""; | |
| void get_parent() { | |
| int i = 0; | |
| int ppid; | |
| parent[0] = parent_args[0] = 0; | |
| ppid = getppid(); | |
| for (i = 0; i < 2; ++i) { | |
| char *parent_p; |
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