* Re: smb daemon get additional command line parameters from env variable [not found] <CACTE=gpFbUSxXeTwu6_tzSeoh_9Yp905aMdzCPCUz3h7kcgeyw@mail.gmail.com> @ 2019-10-31 12:47 ` Laurent Vivier 2019-10-31 13:33 ` [PATCH v2] " Jordi Pujol 0 siblings, 1 reply; 7+ messages in thread From: Laurent Vivier @ 2019-10-31 12:47 UTC (permalink / raw) To: Jordi Pujol, qemu-trivial Cc: Samuel Thibault, Jason Wang, qemu-devel qemu-devel, Jan Kiszka Hi, On 30/10/2019 08:55, Jordi Pujol wrote: > Hello, > > The new version 4 of Samba disables version 1 SMB protocols, now to > run old Win clients we must modify the temporary configuration of the > samba daemon to enable protocols before starting the samba client. > This patch gets the value of the environment variable SMBDOPTIONS and > appends it to the smbd command line; it allows the user to specify > additional samba daemon parameters before starting qemu. > It also patches the fork_exec function in misc.c, to parse correctly > command lines that contain spaces. > > Thanks, > > Jordi Pujol > cc'ed: qemu-devel and maintainers To contribute, please follow the guideline https://wiki.qemu.org/Contribute/SubmitAPatch Thanks, Laurent ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] smb daemon get additional command line parameters from env variable 2019-10-31 12:47 ` smb daemon get additional command line parameters from env variable Laurent Vivier @ 2019-10-31 13:33 ` Jordi Pujol 2019-10-31 16:15 ` Samuel Thibault 0 siblings, 1 reply; 7+ messages in thread From: Jordi Pujol @ 2019-10-31 13:33 UTC (permalink / raw) To: Laurent Vivier Cc: Samuel Thibault, Jason Wang, qemu-devel qemu-devel, Jan Kiszka Hello, Many thanks Laurent, This is the version 2 of this patch, has been modified according to the qemu guidelines. ************************************************** From: Jordi Pujol Palomer <jordipujolp@gmail.com> Date: Thu, 31 Oct 2019 14:31:14 +0200 Subject: [PATCH v2] QEMU samba daemon: additional command line options The smbd daemon takes additional command line options from environment variable SMBDOPTIONS. Set the environment variable SMBDOPTIONS before executing qemu. Example: export SMBDOPTIONS="--option='server min protocol=CORE' -d 4" Signed-off-by: Jordi Pujol Palomer <jordipujolp@gmail.com> --- --- qemu-4.1-a/net/slirp.c +++ qemu_4.1-b/net/slirp.c @@ -909,6 +909,12 @@ static int slirp_smb(SlirpState* s, cons CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); g_free(smb_conf); + char *options = g_strdup(g_getenv("SMBDOPTIONS")); + if (options) { + smb_cmdline = g_strdup_printf("%s %s", smb_cmdline, options); + } + g_free(options); + if (slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 139) < 0 || slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 445) < 0) { slirp_smb_cleanup(s); --- qemu-4.1-a/slirp/src/misc.c 2019-10-29 14:40:15.043120941 +0100 +++ qemu-4.1-b/slirp/src/misc.c 2019-10-29 14:41:04.440235684 +0100 @@ -168,7 +168,9 @@ g_spawn_async_with_fds_slirp(const gchar int fork_exec(struct socket *so, const char *ex) { GError *err = NULL; - char **argv; + gint argc = 0; + gchar **argv = NULL; + gboolean ret; int opt, sp[2]; DEBUG_CALL("fork_exec"); @@ -179,7 +181,13 @@ int fork_exec(struct socket *so, const c return 0; } - argv = g_strsplit(ex, " ", -1); + ret = g_shell_parse_argv(ex, &argc, &argv, &err); + if (err) { + g_critical("fork_exec invalid command: %s", err->message); + g_error_free(err); + return 0; + } + g_spawn_async_with_fds(NULL /* cwd */, argv, NULL /* env */, G_SPAWN_SEARCH_PATH, fork_exec_child_setup, NULL /* data */, NULL /* child_pid */, sp[1], sp[1], ************************************************** Thanks, Jordi Pujol ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] smb daemon get additional command line parameters from env variable 2019-10-31 13:33 ` [PATCH v2] " Jordi Pujol @ 2019-10-31 16:15 ` Samuel Thibault 2019-11-01 14:38 ` [PATCH v3] " Jordi Pujol 0 siblings, 1 reply; 7+ messages in thread From: Samuel Thibault @ 2019-10-31 16:15 UTC (permalink / raw) To: Jordi Pujol; +Cc: Jan Kiszka, Jason Wang, Laurent Vivier, qemu-devel qemu-devel Hello, Jordi Pujol, le jeu. 31 oct. 2019 14:33:00 +0100, a ecrit: > The smbd daemon takes additional command line options > from environment variable SMBDOPTIONS. > Set the environment variable SMBDOPTIONS before executing qemu. > > Example: > > export SMBDOPTIONS="--option='server min protocol=CORE' -d 4" > > Signed-off-by: Jordi Pujol Palomer <jordipujolp@gmail.com> > --- > --- qemu-4.1-a/net/slirp.c > +++ qemu_4.1-b/net/slirp.c > @@ -909,6 +909,12 @@ static int slirp_smb(SlirpState* s, cons > CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); > g_free(smb_conf); > > + char *options = g_strdup(g_getenv("SMBDOPTIONS")); Why strduping it? you can just use g_getenv. > + if (options) { > + smb_cmdline = g_strdup_printf("%s %s", smb_cmdline, options); > + } > + g_free(options); > + > if (slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 139) < 0 || > slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 445) < 0) { > slirp_smb_cleanup(s); > > --- qemu-4.1-a/slirp/src/misc.c 2019-10-29 14:40:15.043120941 +0100 > +++ qemu-4.1-b/slirp/src/misc.c 2019-10-29 14:41:04.440235684 +0100 Please submit this part to https://gitlab.freedesktop.org/slirp/libslirp/ Make sure to note in the changelog that g_shell_parse_argv does only tokenization, and no replacement. Samuel > @@ -168,7 +168,9 @@ g_spawn_async_with_fds_slirp(const gchar > int fork_exec(struct socket *so, const char *ex) > { > GError *err = NULL; > - char **argv; > + gint argc = 0; > + gchar **argv = NULL; > + gboolean ret; > int opt, sp[2]; > > DEBUG_CALL("fork_exec"); > @@ -179,7 +181,13 @@ int fork_exec(struct socket *so, const c > return 0; > } > > - argv = g_strsplit(ex, " ", -1); > + ret = g_shell_parse_argv(ex, &argc, &argv, &err); > + if (err) { > + g_critical("fork_exec invalid command: %s", err->message); > + g_error_free(err); > + return 0; > + } > + > g_spawn_async_with_fds(NULL /* cwd */, argv, NULL /* env */, > G_SPAWN_SEARCH_PATH, fork_exec_child_setup, > NULL /* data */, NULL /* child_pid */, sp[1], sp[1], > ************************************************** > > Thanks, > > Jordi Pujol > ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v3] smb daemon get additional command line parameters from env variable 2019-10-31 16:15 ` Samuel Thibault @ 2019-11-01 14:38 ` Jordi Pujol 2019-11-01 14:54 ` Samuel Thibault 0 siblings, 1 reply; 7+ messages in thread From: Jordi Pujol @ 2019-11-01 14:38 UTC (permalink / raw) To: Samuel Thibault Cc: Jan Kiszka, Jason Wang, Laurent Vivier, qemu-devel qemu-devel On Thu, Oct 31, 2019 at 11:50 PM Samuel Thibault <samuel.thibault@gnu.org> wrote: > Why strduping it? you can just use g_getenv. ACK, I have also placed the variable declaration after the others. Here is the v3 of this patch. ****************************************************************** From: Jordi Pujol Palomer <jordipujolp@gmail.com> Date: Fri, 1 Nov 2019 10:54:14 +0200 Subject: [PATCH v3] QEMU samba daemon: additional command line options The smbd daemon takes additional command line options from environment variable SMBDOPTIONS. Set the environment variable SMBDOPTIONS before executing qemu. Example: export SMBDOPTIONS="--option='server min protocol=CORE' -d 4" Signed-off-by: Jordi Pujol Palomer <jordipujolp@gmail.com> --- --- qemu-4.1-a/net/slirp.c +++ qemu_4.1-b/net/slirp.c @@ -834,6 +834,7 @@ static int slirp_smb(SlirpState* s, cons char *smb_cmdline; struct passwd *passwd; FILE *f; + char *options; passwd = getpwuid(geteuid()); if (!passwd) { @@ -909,6 +910,12 @@ static int slirp_smb(SlirpState* s, cons CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); g_free(smb_conf); + options = g_getenv("SMBDOPTIONS"); + if (options) { + smb_cmdline = g_strdup_printf("%s %s", smb_cmdline, options); + } + g_free(options); + if (slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 139) < 0 || slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 445) < 0) { slirp_smb_cleanup(s); ****************************************************************** > > Please submit this part to https://gitlab.freedesktop.org/slirp/libslirp/ I have forked the libslirp project and created a merge request, Thanks, Jordi Pujol ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v3] smb daemon get additional command line parameters from env variable 2019-11-01 14:38 ` [PATCH v3] " Jordi Pujol @ 2019-11-01 14:54 ` Samuel Thibault 2019-11-02 7:41 ` [PATCH v4] " Jordi Pujol 0 siblings, 1 reply; 7+ messages in thread From: Samuel Thibault @ 2019-11-01 14:54 UTC (permalink / raw) To: Jordi Pujol; +Cc: Jan Kiszka, Jason Wang, Laurent Vivier, qemu-devel qemu-devel Jordi Pujol, le ven. 01 nov. 2019 15:38:19 +0100, a ecrit: > + options = g_getenv("SMBDOPTIONS"); > + if (options) { > + smb_cmdline = g_strdup_printf("%s %s", smb_cmdline, options); > + } > + g_free(options); But then do not free it :) Samuel ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v4] smb daemon get additional command line parameters from env variable 2019-11-01 14:54 ` Samuel Thibault @ 2019-11-02 7:41 ` Jordi Pujol 2019-11-02 8:33 ` Samuel Thibault 0 siblings, 1 reply; 7+ messages in thread From: Jordi Pujol @ 2019-11-02 7:41 UTC (permalink / raw) To: Samuel Thibault Cc: Jan Kiszka, Jason Wang, Laurent Vivier, qemu-devel qemu-devel From: Jordi Pujol Palomer <jordipujolp@gmail.com> Date: Sat, 2 Nov 2019 08:54:14 +0200 Subject: [PATCH v4] QEMU samba daemon: additional command line options The smbd daemon takes additional command line options from environment variable SMBDOPTIONS. Set the environment variable SMBDOPTIONS before executing qemu. Example: export SMBDOPTIONS="--option='server min protocol=CORE' -d 4" Signed-off-by: Jordi Pujol Palomer <jordipujolp@gmail.com> --- --- qemu-4.1-a/net/slirp.c +++ qemu_4.1-b/net/slirp.c @@ -834,6 +834,7 @@ static int slirp_smb(SlirpState* s, cons char *smb_cmdline; struct passwd *passwd; FILE *f; + char *options; passwd = getpwuid(geteuid()); if (!passwd) { @@ -909,6 +910,12 @@ static int slirp_smb(SlirpState* s, cons CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); g_free(smb_conf); + options = g_getenv("SMBDOPTIONS"); + if (options) { + smb_cmdline = g_strdup_printf("%s %s", smb_cmdline, options); + g_free(options); + } + if (slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 139) < 0 || slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 445) < 0) { slirp_smb_cleanup(s); ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v4] smb daemon get additional command line parameters from env variable 2019-11-02 7:41 ` [PATCH v4] " Jordi Pujol @ 2019-11-02 8:33 ` Samuel Thibault 0 siblings, 0 replies; 7+ messages in thread From: Samuel Thibault @ 2019-11-02 8:33 UTC (permalink / raw) To: Jordi Pujol; +Cc: Jan Kiszka, Jason Wang, Laurent Vivier, qemu-devel qemu-devel Jordi Pujol, le sam. 02 nov. 2019 08:41:52 +0100, a ecrit: > @@ -909,6 +910,12 @@ static int slirp_smb(SlirpState* s, cons > CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); > g_free(smb_conf); > > + options = g_getenv("SMBDOPTIONS"); > + if (options) { > + smb_cmdline = g_strdup_printf("%s %s", smb_cmdline, options); > + g_free(options); > + } Again, what g_getenv mustn't be freed. I believe you even get a warning about it: g_getenv returns a const gchar *. The old value of smb_cmdline, however, has to be freed, otherwise that's a memory leak. Samuel ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2019-11-02 8:34 UTC | newest]
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[not found] <CACTE=gpFbUSxXeTwu6_tzSeoh_9Yp905aMdzCPCUz3h7kcgeyw@mail.gmail.com>
2019-10-31 12:47 ` smb daemon get additional command line parameters from env variable Laurent Vivier
2019-10-31 13:33 ` [PATCH v2] " Jordi Pujol
2019-10-31 16:15 ` Samuel Thibault
2019-11-01 14:38 ` [PATCH v3] " Jordi Pujol
2019-11-01 14:54 ` Samuel Thibault
2019-11-02 7:41 ` [PATCH v4] " Jordi Pujol
2019-11-02 8:33 ` Samuel Thibault
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