diff options
Diffstat (limited to 'apt-pkg/indexcopy.cc')
| -rw-r--r-- | apt-pkg/indexcopy.cc | 149 |
1 files changed, 108 insertions, 41 deletions
diff --git a/apt-pkg/indexcopy.cc b/apt-pkg/indexcopy.cc index 53eb11172..621c18716 100644 --- a/apt-pkg/indexcopy.cc +++ b/apt-pkg/indexcopy.cc @@ -27,6 +27,8 @@ #include <sstream> #include <unistd.h> #include <sys/stat.h> +#include <sys/types.h> +#include <fcntl.h> #include <stdio.h> /*}}}*/ @@ -590,66 +592,34 @@ bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList, indexRecords *MetaIndex = new indexRecords; string prefix = *I; + string const releasegpg = *I+"Release.gpg"; + string const release = *I+"Release"; + // a Release.gpg without a Release should never happen - if(!FileExists(*I+"Release")) + if(FileExists(release) == false) { delete MetaIndex; continue; } - - // verify the gpg signature of "Release" - // gpg --verify "*I+Release.gpg", "*I+Release" - const char *Args[400]; - unsigned int i = 0; - - string gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv"); - string pubringpath = _config->Find("Apt::GPGV::TrustedKeyring", "/etc/apt/trusted.gpg"); - string releasegpg = *I+"Release.gpg"; - string release = *I+"Release"; - - Args[i++] = gpgvpath.c_str(); - Args[i++] = "--keyring"; - Args[i++] = pubringpath.c_str(); - Configuration::Item const *Opts; - Opts = _config->Tree("Acquire::gpgv::Options"); - if (Opts != 0) - { - Opts = Opts->Child; - for (; Opts != 0; Opts = Opts->Next) - { - if (Opts->Value.empty() == true) - continue; - Args[i++] = Opts->Value.c_str(); - if(i >= 390) { - _error->Error("Argument list from Acquire::gpgv::Options too long. Exiting."); - return false; - } - } - } - - Args[i++] = releasegpg.c_str(); - Args[i++] = release.c_str(); - Args[i++] = NULL; - pid_t pid = ExecFork(); if(pid < 0) { _error->Error("Fork failed"); return false; } - if(pid == 0) { - execvp(gpgvpath.c_str(), (char**)Args); - } + if(pid == 0) + RunGPGV(release, releasegpg); + if(!ExecWait(pid, "gpgv")) { _error->Warning("Signature verification failed for: %s", - string(*I+"Release.gpg").c_str()); + releasegpg.c_str()); // something went wrong, don't copy the Release.gpg // FIXME: delete any existing gpg file? continue; } // Open the Release file and add it to the MetaIndex - if(!MetaIndex->Load(*I+"Release")) + if(!MetaIndex->Load(release)) { _error->Error("%s",MetaIndex->ErrorText.c_str()); return false; @@ -679,6 +649,103 @@ bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList, return true; } /*}}}*/ +// SigVerify::RunGPGV - returns the command needed for verify /*{{{*/ +// --------------------------------------------------------------------- +/* Generating the commandline for calling gpgv is somehow complicated as + we need to add multiple keyrings and user supplied options. Also, as + the cdrom code currently can not use the gpgv method we have two places + these need to be done - so the place for this method is wrong but better + than code duplication… */ +bool SigVerify::RunGPGV(std::string const &File, std::string const &FileGPG, + int const &statusfd, int fd[2]) +{ + string const gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv"); + // FIXME: remove support for deprecated APT::GPGV setting + string const trustedFile = _config->FindFile("Dir::Etc::Trusted", + _config->Find("APT::GPGV::TrustedKeyring", "/etc/apt/trusted.gpg").c_str()); + string const trustedPath = _config->FindDir("Dir::Etc::TrustedParts", "/etc/apt/trusted.gpg.d"); + + bool const Debug = _config->FindB("Debug::Acquire::gpgv", false); + + if (Debug == true) + { + std::clog << "gpgv path: " << gpgvpath << std::endl; + std::clog << "Keyring file: " << trustedFile << std::endl; + std::clog << "Keyring path: " << trustedPath << std::endl; + } + + std::vector<string> keyrings = GetListOfFilesInDir(trustedPath, "gpg", false); + if (FileExists(trustedFile) == true) + keyrings.push_back(trustedFile); + + std::vector<const char *> Args; + Args.reserve(30); + + if (keyrings.empty() == true) + return false; + + Args.push_back(gpgvpath.c_str()); + Args.push_back("--ignore-time-conflict"); + + if (statusfd != -1) + { + Args.push_back("--status-fd"); + char fd[10]; + snprintf(fd, sizeof(fd), "%i", statusfd); + Args.push_back(fd); + } + + for (vector<string>::const_iterator K = keyrings.begin(); + K != keyrings.end(); ++K) + { + Args.push_back("--keyring"); + Args.push_back(K->c_str()); + } + + Configuration::Item const *Opts; + Opts = _config->Tree("Acquire::gpgv::Options"); + if (Opts != 0) + { + Opts = Opts->Child; + for (; Opts != 0; Opts = Opts->Next) + { + if (Opts->Value.empty() == true) + continue; + Args.push_back(Opts->Value.c_str()); + } + } + + Args.push_back(FileGPG.c_str()); + Args.push_back(File.c_str()); + Args.push_back(NULL); + + if (Debug == true) + { + std::clog << "Preparing to exec: " << gpgvpath; + for (std::vector<const char *>::const_iterator a = Args.begin(); *a != NULL; ++a) + std::clog << " " << *a; + std::clog << std::endl; + } + + if (statusfd != -1) + { + int const nullfd = open("/dev/null", O_RDONLY); + close(fd[0]); + // Redirect output to /dev/null; we read from the status fd + dup2(nullfd, STDOUT_FILENO); + dup2(nullfd, STDERR_FILENO); + // Redirect the pipe to the status fd (3) + dup2(fd[1], statusfd); + + putenv((char *)"LANG="); + putenv((char *)"LC_ALL="); + putenv((char *)"LC_MESSAGES="); + } + + execvp(gpgvpath.c_str(), (char **) &Args[0]); + return true; +} + /*}}}*/ bool TranslationsCopy::CopyTranslations(string CDROM,string Name, /*{{{*/ vector<string> &List, pkgCdromStatus *log) { |